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Sindre Sorhus\n@license MIT\n*/\n\n'use strict';\n/* eslint-disable no-unused-vars */\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\nfunction toObject(val) {\n\tif (val === null || val === undefined) {\n\t\tthrow new TypeError('Object.assign cannot be called with null or undefined');\n\t}\n\n\treturn Object(val);\n}\n\nfunction shouldUseNative() {\n\ttry {\n\t\tif (!Object.assign) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Detect buggy property enumeration order in older V8 versions.\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=4118\n\t\tvar test1 = new String('abc'); // eslint-disable-line no-new-wrappers\n\t\ttest1[5] = 'de';\n\t\tif (Object.getOwnPropertyNames(test1)[0] === '5') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test2 = {};\n\t\tfor (var i = 0; i < 10; i++) {\n\t\t\ttest2['_' + String.fromCharCode(i)] = i;\n\t\t}\n\t\tvar order2 = Object.getOwnPropertyNames(test2).map(function (n) {\n\t\t\treturn test2[n];\n\t\t});\n\t\tif (order2.join('') !== '0123456789') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test3 = {};\n\t\t'abcdefghijklmnopqrst'.split('').forEach(function (letter) {\n\t\t\ttest3[letter] = letter;\n\t\t});\n\t\tif (Object.keys(Object.assign({}, test3)).join('') !==\n\t\t\t\t'abcdefghijklmnopqrst') {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t} catch (err) {\n\t\t// We don't expect any of the above to throw, but better to be safe.\n\t\treturn false;\n\t}\n}\n\nmodule.exports = shouldUseNative() ? Object.assign : function (target, source) {\n\tvar from;\n\tvar to = toObject(target);\n\tvar symbols;\n\n\tfor (var s = 1; s < arguments.length; s++) {\n\t\tfrom = Object(arguments[s]);\n\n\t\tfor (var key in from) {\n\t\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\t\tto[key] = from[key];\n\t\t\t}\n\t\t}\n\n\t\tif (getOwnPropertySymbols) {\n\t\t\tsymbols = getOwnPropertySymbols(from);\n\t\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\t\tto[symbols[i]] = from[symbols[i]];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn to;\n};\n","/** @license React v17.0.2\n * react.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';var l=require(\"object-assign\"),n=60103,p=60106;exports.Fragment=60107;exports.StrictMode=60108;exports.Profiler=60114;var q=60109,r=60110,t=60112;exports.Suspense=60113;var u=60115,v=60116;\nif(\"function\"===typeof Symbol&&Symbol.for){var w=Symbol.for;n=w(\"react.element\");p=w(\"react.portal\");exports.Fragment=w(\"react.fragment\");exports.StrictMode=w(\"react.strict_mode\");exports.Profiler=w(\"react.profiler\");q=w(\"react.provider\");r=w(\"react.context\");t=w(\"react.forward_ref\");exports.Suspense=w(\"react.suspense\");u=w(\"react.memo\");v=w(\"react.lazy\")}var x=\"function\"===typeof Symbol&&Symbol.iterator;\nfunction y(a){if(null===a||\"object\"!==typeof a)return null;a=x&&a[x]||a[\"@@iterator\"];return\"function\"===typeof a?a:null}function z(a){for(var b=\"https://reactjs.org/docs/error-decoder.html?invariant=\"+a,c=1;c API\n * where both the location and a navigator must be provided separately in order\n * to avoid \"tearing\" that may occur in a suspense-enabled app if the action\n * and/or location were to be read directly from the history instance.\n */\n\n\nconst NavigationContext = /*#__PURE__*/createContext(null);\n\nif (process.env.NODE_ENV !== \"production\") {\n NavigationContext.displayName = \"Navigation\";\n}\n\nconst LocationContext = /*#__PURE__*/createContext(null);\n\nif (process.env.NODE_ENV !== \"production\") {\n LocationContext.displayName = \"Location\";\n}\n\nconst RouteContext = /*#__PURE__*/createContext({\n outlet: null,\n matches: []\n});\n\nif (process.env.NODE_ENV !== \"production\") {\n RouteContext.displayName = \"Route\";\n} ///////////////////////////////////////////////////////////////////////////////\n// COMPONENTS\n///////////////////////////////////////////////////////////////////////////////\n\n\n/**\n * A that stores all entries in memory.\n *\n * @see https://reactrouter.com/docs/en/v6/api#memoryrouter\n */\nfunction MemoryRouter(_ref) {\n let {\n basename,\n children,\n initialEntries,\n initialIndex\n } = _ref;\n let historyRef = useRef();\n\n if (historyRef.current == null) {\n historyRef.current = createMemoryHistory({\n initialEntries,\n initialIndex\n });\n }\n\n let history = historyRef.current;\n let [state, setState] = useState({\n action: history.action,\n location: history.location\n });\n useLayoutEffect(() => history.listen(setState), [history]);\n return /*#__PURE__*/createElement(Router, {\n basename: basename,\n children: children,\n location: state.location,\n navigationType: state.action,\n navigator: history\n });\n}\n\n/**\n * Changes the current location.\n *\n * Note: This API is mostly useful in React.Component subclasses that are not\n * able to use hooks. In functional components, we recommend you use the\n * `useNavigate` hook instead.\n *\n * @see https://reactrouter.com/docs/en/v6/api#navigate\n */\nfunction Navigate(_ref2) {\n let {\n to,\n replace,\n state\n } = _ref2;\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of\n // the router loaded. We can help them understand how to avoid that.\n \" may be used only in the context of a component.\") : invariant(false) : void 0;\n process.env.NODE_ENV !== \"production\" ? warning(!useContext(NavigationContext).static, \" must not be used on the initial render in a . \" + \"This is a no-op, but you should modify your code so the is \" + \"only ever rendered in response to some user interaction or state change.\") : void 0;\n let navigate = useNavigate();\n useEffect(() => {\n navigate(to, {\n replace,\n state\n });\n });\n return null;\n}\n\n/**\n * Renders the child route's element, if there is one.\n *\n * @see https://reactrouter.com/docs/en/v6/api#outlet\n */\nfunction Outlet(props) {\n return useOutlet(props.context);\n}\n\n/**\n * Declares an element that should be rendered at a certain URL path.\n *\n * @see https://reactrouter.com/docs/en/v6/api#route\n */\nfunction Route(_props) {\n process.env.NODE_ENV !== \"production\" ? invariant(false, \"A is only ever to be used as the child of element, \" + \"never rendered directly. Please wrap your in a .\") : invariant(false) ;\n}\n\n/**\n * Provides location context for the rest of the app.\n *\n * Note: You usually won't render a directly. Instead, you'll render a\n * router that is more specific to your environment such as a \n * in web browsers or a for server rendering.\n *\n * @see https://reactrouter.com/docs/en/v6/api#router\n */\nfunction Router(_ref3) {\n let {\n basename: basenameProp = \"/\",\n children = null,\n location: locationProp,\n navigationType = Action.Pop,\n navigator,\n static: staticProp = false\n } = _ref3;\n !!useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"You cannot render a inside another .\" + \" You should never have more than one in your app.\") : invariant(false) : void 0;\n let basename = normalizePathname(basenameProp);\n let navigationContext = useMemo(() => ({\n basename,\n navigator,\n static: staticProp\n }), [basename, navigator, staticProp]);\n\n if (typeof locationProp === \"string\") {\n locationProp = parsePath(locationProp);\n }\n\n let {\n pathname = \"/\",\n search = \"\",\n hash = \"\",\n state = null,\n key = \"default\"\n } = locationProp;\n let location = useMemo(() => {\n let trailingPathname = stripBasename(pathname, basename);\n\n if (trailingPathname == null) {\n return null;\n }\n\n return {\n pathname: trailingPathname,\n search,\n hash,\n state,\n key\n };\n }, [basename, pathname, search, hash, state, key]);\n process.env.NODE_ENV !== \"production\" ? warning(location != null, \" is not able to match the URL \" + (\"\\\"\" + pathname + search + hash + \"\\\" because it does not start with the \") + \"basename, so the won't render anything.\") : void 0;\n\n if (location == null) {\n return null;\n }\n\n return /*#__PURE__*/createElement(NavigationContext.Provider, {\n value: navigationContext\n }, /*#__PURE__*/createElement(LocationContext.Provider, {\n children: children,\n value: {\n location,\n navigationType\n }\n }));\n}\n\n/**\n * A container for a nested tree of elements that renders the branch\n * that best matches the current location.\n *\n * @see https://reactrouter.com/docs/en/v6/api#routes\n */\nfunction Routes(_ref4) {\n let {\n children,\n location\n } = _ref4;\n return useRoutes(createRoutesFromChildren(children), location);\n} ///////////////////////////////////////////////////////////////////////////////\n// HOOKS\n///////////////////////////////////////////////////////////////////////////////\n\n/**\n * Returns the full href for the given \"to\" value. This is useful for building\n * custom links that are also accessible and preserve right-click behavior.\n *\n * @see https://reactrouter.com/docs/en/v6/api#usehref\n */\n\nfunction useHref(to) {\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of the\n // router loaded. We can help them understand how to avoid that.\n \"useHref() may be used only in the context of a component.\") : invariant(false) : void 0;\n let {\n basename,\n navigator\n } = useContext(NavigationContext);\n let {\n hash,\n pathname,\n search\n } = useResolvedPath(to);\n let joinedPathname = pathname;\n\n if (basename !== \"/\") {\n let toPathname = getToPathname(to);\n let endsWithSlash = toPathname != null && toPathname.endsWith(\"/\");\n joinedPathname = pathname === \"/\" ? basename + (endsWithSlash ? \"/\" : \"\") : joinPaths([basename, pathname]);\n }\n\n return navigator.createHref({\n pathname: joinedPathname,\n search,\n hash\n });\n}\n/**\n * Returns true if this component is a descendant of a .\n *\n * @see https://reactrouter.com/docs/en/v6/api#useinroutercontext\n */\n\nfunction useInRouterContext() {\n return useContext(LocationContext) != null;\n}\n/**\n * Returns the current location object, which represents the current URL in web\n * browsers.\n *\n * Note: If you're using this it may mean you're doing some of your own\n * \"routing\" in your app, and we'd like to know what your use case is. We may\n * be able to provide something higher-level to better suit your needs.\n *\n * @see https://reactrouter.com/docs/en/v6/api#uselocation\n */\n\nfunction useLocation() {\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of the\n // router loaded. We can help them understand how to avoid that.\n \"useLocation() may be used only in the context of a component.\") : invariant(false) : void 0;\n return useContext(LocationContext).location;\n}\n\n/**\n * Returns the current navigation action which describes how the router came to\n * the current location, either by a pop, push, or replace on the history stack.\n *\n * @see https://reactrouter.com/docs/en/v6/api#usenavigationtype\n */\nfunction useNavigationType() {\n return useContext(LocationContext).navigationType;\n}\n/**\n * Returns true if the URL for the given \"to\" value matches the current URL.\n * This is useful for components that need to know \"active\" state, e.g.\n * .\n *\n * @see https://reactrouter.com/docs/en/v6/api#usematch\n */\n\nfunction useMatch(pattern) {\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of the\n // router loaded. We can help them understand how to avoid that.\n \"useMatch() may be used only in the context of a component.\") : invariant(false) : void 0;\n let {\n pathname\n } = useLocation();\n return useMemo(() => matchPath(pattern, pathname), [pathname, pattern]);\n}\n/**\n * The interface for the navigate() function returned from useNavigate().\n */\n\n/**\n * Returns an imperative method for changing the location. Used by s, but\n * may also be used by other elements to change the location.\n *\n * @see https://reactrouter.com/docs/en/v6/api#usenavigate\n */\nfunction useNavigate() {\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of the\n // router loaded. We can help them understand how to avoid that.\n \"useNavigate() may be used only in the context of a component.\") : invariant(false) : void 0;\n let {\n basename,\n navigator\n } = useContext(NavigationContext);\n let {\n matches\n } = useContext(RouteContext);\n let {\n pathname: locationPathname\n } = useLocation();\n let routePathnamesJson = JSON.stringify(matches.map(match => match.pathnameBase));\n let activeRef = useRef(false);\n useEffect(() => {\n activeRef.current = true;\n });\n let navigate = useCallback(function (to, options) {\n if (options === void 0) {\n options = {};\n }\n\n process.env.NODE_ENV !== \"production\" ? warning(activeRef.current, \"You should call navigate() in a React.useEffect(), not when \" + \"your component is first rendered.\") : void 0;\n if (!activeRef.current) return;\n\n if (typeof to === \"number\") {\n navigator.go(to);\n return;\n }\n\n let path = resolveTo(to, JSON.parse(routePathnamesJson), locationPathname);\n\n if (basename !== \"/\") {\n path.pathname = joinPaths([basename, path.pathname]);\n }\n\n (!!options.replace ? navigator.replace : navigator.push)(path, options.state);\n }, [basename, navigator, routePathnamesJson, locationPathname]);\n return navigate;\n}\nconst OutletContext = /*#__PURE__*/createContext(null);\n/**\n * Returns the context (if provided) for the child route at this level of the route\n * hierarchy.\n * @see https://reactrouter.com/docs/en/v6/api#useoutletcontext\n */\n\nfunction useOutletContext() {\n return useContext(OutletContext);\n}\n/**\n * Returns the element for the child route at this level of the route\n * hierarchy. Used internally by to render child routes.\n *\n * @see https://reactrouter.com/docs/en/v6/api#useoutlet\n */\n\nfunction useOutlet(context) {\n let outlet = useContext(RouteContext).outlet;\n\n if (outlet) {\n return /*#__PURE__*/createElement(OutletContext.Provider, {\n value: context\n }, outlet);\n }\n\n return outlet;\n}\n/**\n * Returns an object of key/value pairs of the dynamic params from the current\n * URL that were matched by the route path.\n *\n * @see https://reactrouter.com/docs/en/v6/api#useparams\n */\n\nfunction useParams() {\n let {\n matches\n } = useContext(RouteContext);\n let routeMatch = matches[matches.length - 1];\n return routeMatch ? routeMatch.params : {};\n}\n/**\n * Resolves the pathname of the given `to` value against the current location.\n *\n * @see https://reactrouter.com/docs/en/v6/api#useresolvedpath\n */\n\nfunction useResolvedPath(to) {\n let {\n matches\n } = useContext(RouteContext);\n let {\n pathname: locationPathname\n } = useLocation();\n let routePathnamesJson = JSON.stringify(matches.map(match => match.pathnameBase));\n return useMemo(() => resolveTo(to, JSON.parse(routePathnamesJson), locationPathname), [to, routePathnamesJson, locationPathname]);\n}\n/**\n * Returns the element of the route that matched the current location, prepared\n * with the correct context to render the remainder of the route tree. Route\n * elements in the tree must render an to render their child route's\n * element.\n *\n * @see https://reactrouter.com/docs/en/v6/api#useroutes\n */\n\nfunction useRoutes(routes, locationArg) {\n !useInRouterContext() ? process.env.NODE_ENV !== \"production\" ? invariant(false, // TODO: This error is probably because they somehow have 2 versions of the\n // router loaded. We can help them understand how to avoid that.\n \"useRoutes() may be used only in the context of a component.\") : invariant(false) : void 0;\n let {\n matches: parentMatches\n } = useContext(RouteContext);\n let routeMatch = parentMatches[parentMatches.length - 1];\n let parentParams = routeMatch ? routeMatch.params : {};\n let parentPathname = routeMatch ? routeMatch.pathname : \"/\";\n let parentPathnameBase = routeMatch ? routeMatch.pathnameBase : \"/\";\n let parentRoute = routeMatch && routeMatch.route;\n\n if (process.env.NODE_ENV !== \"production\") {\n // You won't get a warning about 2 different under a \n // without a trailing *, but this is a best-effort warning anyway since we\n // cannot even give the warning unless they land at the parent route.\n //\n // Example:\n //\n // \n // {/* This route path MUST end with /* because otherwise\n // it will never match /blog/post/123 */}\n // } />\n // } />\n // \n //\n // function Blog() {\n // return (\n // \n // } />\n // \n // );\n // }\n let parentPath = parentRoute && parentRoute.path || \"\";\n warningOnce(parentPathname, !parentRoute || parentPath.endsWith(\"*\"), \"You rendered descendant (or called `useRoutes()`) at \" + (\"\\\"\" + parentPathname + \"\\\" (under ) but the \") + \"parent route path has no trailing \\\"*\\\". This means if you navigate \" + \"deeper, the parent won't match anymore and therefore the child \" + \"routes will never render.\\n\\n\" + (\"Please change the parent to .\"));\n }\n\n let locationFromContext = useLocation();\n let location;\n\n if (locationArg) {\n var _parsedLocationArg$pa;\n\n let parsedLocationArg = typeof locationArg === \"string\" ? parsePath(locationArg) : locationArg;\n !(parentPathnameBase === \"/\" || ((_parsedLocationArg$pa = parsedLocationArg.pathname) == null ? void 0 : _parsedLocationArg$pa.startsWith(parentPathnameBase))) ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"When overriding the location using `` or `useRoutes(routes, location)`, \" + \"the location pathname must begin with the portion of the URL pathname that was \" + (\"matched by all parent routes. The current pathname base is \\\"\" + parentPathnameBase + \"\\\" \") + (\"but pathname \\\"\" + parsedLocationArg.pathname + \"\\\" was given in the `location` prop.\")) : invariant(false) : void 0;\n location = parsedLocationArg;\n } else {\n location = locationFromContext;\n }\n\n let pathname = location.pathname || \"/\";\n let remainingPathname = parentPathnameBase === \"/\" ? pathname : pathname.slice(parentPathnameBase.length) || \"/\";\n let matches = matchRoutes(routes, {\n pathname: remainingPathname\n });\n\n if (process.env.NODE_ENV !== \"production\") {\n process.env.NODE_ENV !== \"production\" ? warning(parentRoute || matches != null, \"No routes matched location \\\"\" + location.pathname + location.search + location.hash + \"\\\" \") : void 0;\n process.env.NODE_ENV !== \"production\" ? warning(matches == null || matches[matches.length - 1].route.element !== undefined, \"Matched leaf route at location \\\"\" + location.pathname + location.search + location.hash + \"\\\" does not have an element. \" + \"This means it will render an with a null value by default resulting in an \\\"empty\\\" page.\") : void 0;\n }\n\n return _renderMatches(matches && matches.map(match => Object.assign({}, match, {\n params: Object.assign({}, parentParams, match.params),\n pathname: joinPaths([parentPathnameBase, match.pathname]),\n pathnameBase: match.pathnameBase === \"/\" ? parentPathnameBase : joinPaths([parentPathnameBase, match.pathnameBase])\n })), parentMatches);\n} ///////////////////////////////////////////////////////////////////////////////\n// UTILS\n///////////////////////////////////////////////////////////////////////////////\n\n/**\n * Creates a route config from a React \"children\" object, which is usually\n * either a `` element or an array of them. Used internally by\n * `` to create a route config from its children.\n *\n * @see https://reactrouter.com/docs/en/v6/api#createroutesfromchildren\n */\n\nfunction createRoutesFromChildren(children) {\n let routes = [];\n Children.forEach(children, element => {\n if (! /*#__PURE__*/isValidElement(element)) {\n // Ignore non-elements. This allows people to more easily inline\n // conditionals in their route config.\n return;\n }\n\n if (element.type === Fragment) {\n // Transparently support React.Fragment and its children.\n routes.push.apply(routes, createRoutesFromChildren(element.props.children));\n return;\n }\n\n !(element.type === Route) ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"[\" + (typeof element.type === \"string\" ? element.type : element.type.name) + \"] is not a component. All component children of must be a or \") : invariant(false) : void 0;\n let route = {\n caseSensitive: element.props.caseSensitive,\n element: element.props.element,\n index: element.props.index,\n path: element.props.path\n };\n\n if (element.props.children) {\n route.children = createRoutesFromChildren(element.props.children);\n }\n\n routes.push(route);\n });\n return routes;\n}\n/**\n * The parameters that were parsed from the URL path.\n */\n\n/**\n * Returns a path with params interpolated.\n *\n * @see https://reactrouter.com/docs/en/v6/api#generatepath\n */\nfunction generatePath(path, params) {\n if (params === void 0) {\n params = {};\n }\n\n return path.replace(/:(\\w+)/g, (_, key) => {\n !(params[key] != null) ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"Missing \\\":\" + key + \"\\\" param\") : invariant(false) : void 0;\n return params[key];\n }).replace(/\\/*\\*$/, _ => params[\"*\"] == null ? \"\" : params[\"*\"].replace(/^\\/*/, \"/\"));\n}\n/**\n * A RouteMatch contains info about how a route matched a URL.\n */\n\n/**\n * Matches the given routes to a location and returns the match data.\n *\n * @see https://reactrouter.com/docs/en/v6/api#matchroutes\n */\nfunction matchRoutes(routes, locationArg, basename) {\n if (basename === void 0) {\n basename = \"/\";\n }\n\n let location = typeof locationArg === \"string\" ? parsePath(locationArg) : locationArg;\n let pathname = stripBasename(location.pathname || \"/\", basename);\n\n if (pathname == null) {\n return null;\n }\n\n let branches = flattenRoutes(routes);\n rankRouteBranches(branches);\n let matches = null;\n\n for (let i = 0; matches == null && i < branches.length; ++i) {\n matches = matchRouteBranch(branches[i], pathname);\n }\n\n return matches;\n}\n\nfunction flattenRoutes(routes, branches, parentsMeta, parentPath) {\n if (branches === void 0) {\n branches = [];\n }\n\n if (parentsMeta === void 0) {\n parentsMeta = [];\n }\n\n if (parentPath === void 0) {\n parentPath = \"\";\n }\n\n routes.forEach((route, index) => {\n let meta = {\n relativePath: route.path || \"\",\n caseSensitive: route.caseSensitive === true,\n childrenIndex: index,\n route\n };\n\n if (meta.relativePath.startsWith(\"/\")) {\n !meta.relativePath.startsWith(parentPath) ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"Absolute route path \\\"\" + meta.relativePath + \"\\\" nested under path \" + (\"\\\"\" + parentPath + \"\\\" is not valid. An absolute child route path \") + \"must start with the combined path of all its parent routes.\") : invariant(false) : void 0;\n meta.relativePath = meta.relativePath.slice(parentPath.length);\n }\n\n let path = joinPaths([parentPath, meta.relativePath]);\n let routesMeta = parentsMeta.concat(meta); // Add the children before adding this route to the array so we traverse the\n // route tree depth-first and child routes appear before their parents in\n // the \"flattened\" version.\n\n if (route.children && route.children.length > 0) {\n !(route.index !== true) ? process.env.NODE_ENV !== \"production\" ? invariant(false, \"Index routes must not have child routes. Please remove \" + (\"all child routes from route path \\\"\" + path + \"\\\".\")) : invariant(false) : void 0;\n flattenRoutes(route.children, branches, routesMeta, path);\n } // Routes without a path shouldn't ever match by themselves unless they are\n // index routes, so don't add them to the list of possible branches.\n\n\n if (route.path == null && !route.index) {\n return;\n }\n\n branches.push({\n path,\n score: computeScore(path, route.index),\n routesMeta\n });\n });\n return branches;\n}\n\nfunction rankRouteBranches(branches) {\n branches.sort((a, b) => a.score !== b.score ? b.score - a.score // Higher score first\n : compareIndexes(a.routesMeta.map(meta => meta.childrenIndex), b.routesMeta.map(meta => meta.childrenIndex)));\n}\n\nconst paramRe = /^:\\w+$/;\nconst dynamicSegmentValue = 3;\nconst indexRouteValue = 2;\nconst emptySegmentValue = 1;\nconst staticSegmentValue = 10;\nconst splatPenalty = -2;\n\nconst isSplat = s => s === \"*\";\n\nfunction computeScore(path, index) {\n let segments = path.split(\"/\");\n let initialScore = segments.length;\n\n if (segments.some(isSplat)) {\n initialScore += splatPenalty;\n }\n\n if (index) {\n initialScore += indexRouteValue;\n }\n\n return segments.filter(s => !isSplat(s)).reduce((score, segment) => score + (paramRe.test(segment) ? dynamicSegmentValue : segment === \"\" ? emptySegmentValue : staticSegmentValue), initialScore);\n}\n\nfunction compareIndexes(a, b) {\n let siblings = a.length === b.length && a.slice(0, -1).every((n, i) => n === b[i]);\n return siblings ? // If two routes are siblings, we should try to match the earlier sibling\n // first. This allows people to have fine-grained control over the matching\n // behavior by simply putting routes with identical paths in the order they\n // want them tried.\n a[a.length - 1] - b[b.length - 1] : // Otherwise, it doesn't really make sense to rank non-siblings by index,\n // so they sort equally.\n 0;\n}\n\nfunction matchRouteBranch(branch, pathname) {\n let {\n routesMeta\n } = branch;\n let matchedParams = {};\n let matchedPathname = \"/\";\n let matches = [];\n\n for (let i = 0; i < routesMeta.length; ++i) {\n let meta = routesMeta[i];\n let end = i === routesMeta.length - 1;\n let remainingPathname = matchedPathname === \"/\" ? pathname : pathname.slice(matchedPathname.length) || \"/\";\n let match = matchPath({\n path: meta.relativePath,\n caseSensitive: meta.caseSensitive,\n end\n }, remainingPathname);\n if (!match) return null;\n Object.assign(matchedParams, match.params);\n let route = meta.route;\n matches.push({\n params: matchedParams,\n pathname: joinPaths([matchedPathname, match.pathname]),\n pathnameBase: joinPaths([matchedPathname, match.pathnameBase]),\n route\n });\n\n if (match.pathnameBase !== \"/\") {\n matchedPathname = joinPaths([matchedPathname, match.pathnameBase]);\n }\n }\n\n return matches;\n}\n/**\n * Renders the result of `matchRoutes()` into a React element.\n */\n\n\nfunction renderMatches(matches) {\n return _renderMatches(matches);\n}\n\nfunction _renderMatches(matches, parentMatches) {\n if (parentMatches === void 0) {\n parentMatches = [];\n }\n\n if (matches == null) return null;\n return matches.reduceRight((outlet, match, index) => {\n return /*#__PURE__*/createElement(RouteContext.Provider, {\n children: match.route.element !== undefined ? match.route.element : /*#__PURE__*/createElement(Outlet, null),\n value: {\n outlet,\n matches: parentMatches.concat(matches.slice(0, index + 1))\n }\n });\n }, null);\n}\n/**\n * A PathPattern is used to match on some portion of a URL pathname.\n */\n\n\n/**\n * Performs pattern matching on a URL pathname and returns information about\n * the match.\n *\n * @see https://reactrouter.com/docs/en/v6/api#matchpath\n */\nfunction matchPath(pattern, pathname) {\n if (typeof pattern === \"string\") {\n pattern = {\n path: pattern,\n caseSensitive: false,\n end: true\n };\n }\n\n let [matcher, paramNames] = compilePath(pattern.path, pattern.caseSensitive, pattern.end);\n let match = pathname.match(matcher);\n if (!match) return null;\n let matchedPathname = match[0];\n let pathnameBase = matchedPathname.replace(/(.)\\/+$/, \"$1\");\n let captureGroups = match.slice(1);\n let params = paramNames.reduce((memo, paramName, index) => {\n // We need to compute the pathnameBase here using the raw splat value\n // instead of using params[\"*\"] later because it will be decoded then\n if (paramName === \"*\") {\n let splatValue = captureGroups[index] || \"\";\n pathnameBase = matchedPathname.slice(0, matchedPathname.length - splatValue.length).replace(/(.)\\/+$/, \"$1\");\n }\n\n memo[paramName] = safelyDecodeURIComponent(captureGroups[index] || \"\", paramName);\n return memo;\n }, {});\n return {\n params,\n pathname: matchedPathname,\n pathnameBase,\n pattern\n };\n}\n\nfunction compilePath(path, caseSensitive, end) {\n if (caseSensitive === void 0) {\n caseSensitive = false;\n }\n\n if (end === void 0) {\n end = true;\n }\n\n process.env.NODE_ENV !== \"production\" ? warning(path === \"*\" || !path.endsWith(\"*\") || path.endsWith(\"/*\"), \"Route path \\\"\" + path + \"\\\" will be treated as if it were \" + (\"\\\"\" + path.replace(/\\*$/, \"/*\") + \"\\\" because the `*` character must \") + \"always follow a `/` in the pattern. To get rid of this warning, \" + (\"please change the route path to \\\"\" + path.replace(/\\*$/, \"/*\") + \"\\\".\")) : void 0;\n let paramNames = [];\n let regexpSource = \"^\" + path.replace(/\\/*\\*?$/, \"\") // Ignore trailing / and /*, we'll handle it below\n .replace(/^\\/*/, \"/\") // Make sure it has a leading /\n .replace(/[\\\\.*+^$?{}|()[\\]]/g, \"\\\\$&\") // Escape special regex chars\n .replace(/:(\\w+)/g, (_, paramName) => {\n paramNames.push(paramName);\n return \"([^\\\\/]+)\";\n });\n\n if (path.endsWith(\"*\")) {\n paramNames.push(\"*\");\n regexpSource += path === \"*\" || path === \"/*\" ? \"(.*)$\" // Already matched the initial /, just match the rest\n : \"(?:\\\\/(.+)|\\\\/*)$\"; // Don't include the / in params[\"*\"]\n } else {\n regexpSource += end ? \"\\\\/*$\" // When matching to the end, ignore trailing slashes\n : // Otherwise, match a word boundary or a proceeding /. The word boundary restricts\n // parent routes to matching only their own words and nothing more, e.g. parent\n // route \"/home\" should not match \"/home2\".\n \"(?:\\\\b|\\\\/|$)\";\n }\n\n let matcher = new RegExp(regexpSource, caseSensitive ? undefined : \"i\");\n return [matcher, paramNames];\n}\n\nfunction safelyDecodeURIComponent(value, paramName) {\n try {\n return decodeURIComponent(value);\n } catch (error) {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"The value for the URL param \\\"\" + paramName + \"\\\" will not be decoded because\" + (\" the string \\\"\" + value + \"\\\" is a malformed URL segment. This is probably\") + (\" due to a bad percent encoding (\" + error + \").\")) : void 0;\n return value;\n }\n}\n/**\n * Returns a resolved path object relative to the given pathname.\n *\n * @see https://reactrouter.com/docs/en/v6/api#resolvepath\n */\n\n\nfunction resolvePath(to, fromPathname) {\n if (fromPathname === void 0) {\n fromPathname = \"/\";\n }\n\n let {\n pathname: toPathname,\n search = \"\",\n hash = \"\"\n } = typeof to === \"string\" ? parsePath(to) : to;\n let pathname = toPathname ? toPathname.startsWith(\"/\") ? toPathname : resolvePathname(toPathname, fromPathname) : fromPathname;\n return {\n pathname,\n search: normalizeSearch(search),\n hash: normalizeHash(hash)\n };\n}\n\nfunction resolvePathname(relativePath, fromPathname) {\n let segments = fromPathname.replace(/\\/+$/, \"\").split(\"/\");\n let relativeSegments = relativePath.split(\"/\");\n relativeSegments.forEach(segment => {\n if (segment === \"..\") {\n // Keep the root \"\" segment so the pathname starts at /\n if (segments.length > 1) segments.pop();\n } else if (segment !== \".\") {\n segments.push(segment);\n }\n });\n return segments.length > 1 ? segments.join(\"/\") : \"/\";\n}\n\nfunction resolveTo(toArg, routePathnames, locationPathname) {\n let to = typeof toArg === \"string\" ? parsePath(toArg) : toArg;\n let toPathname = toArg === \"\" || to.pathname === \"\" ? \"/\" : to.pathname; // If a pathname is explicitly provided in `to`, it should be relative to the\n // route context. This is explained in `Note on `` values` in our\n // migration guide from v5 as a means of disambiguation between `to` values\n // that begin with `/` and those that do not. However, this is problematic for\n // `to` values that do not provide a pathname. `to` can simply be a search or\n // hash string, in which case we should assume that the navigation is relative\n // to the current location's pathname and *not* the route pathname.\n\n let from;\n\n if (toPathname == null) {\n from = locationPathname;\n } else {\n let routePathnameIndex = routePathnames.length - 1;\n\n if (toPathname.startsWith(\"..\")) {\n let toSegments = toPathname.split(\"/\"); // Each leading .. segment means \"go up one route\" instead of \"go up one\n // URL segment\". This is a key difference from how works and a\n // major reason we call this a \"to\" value instead of a \"href\".\n\n while (toSegments[0] === \"..\") {\n toSegments.shift();\n routePathnameIndex -= 1;\n }\n\n to.pathname = toSegments.join(\"/\");\n } // If there are more \"..\" segments than parent routes, resolve relative to\n // the root / URL.\n\n\n from = routePathnameIndex >= 0 ? routePathnames[routePathnameIndex] : \"/\";\n }\n\n let path = resolvePath(to, from); // Ensure the pathname has a trailing slash if the original to value had one.\n\n if (toPathname && toPathname !== \"/\" && toPathname.endsWith(\"/\") && !path.pathname.endsWith(\"/\")) {\n path.pathname += \"/\";\n }\n\n return path;\n}\n\nfunction getToPathname(to) {\n // Empty strings should be treated the same as / paths\n return to === \"\" || to.pathname === \"\" ? \"/\" : typeof to === \"string\" ? parsePath(to).pathname : to.pathname;\n}\n\nfunction stripBasename(pathname, basename) {\n if (basename === \"/\") return pathname;\n\n if (!pathname.toLowerCase().startsWith(basename.toLowerCase())) {\n return null;\n }\n\n let nextChar = pathname.charAt(basename.length);\n\n if (nextChar && nextChar !== \"/\") {\n // pathname does not start with basename/\n return null;\n }\n\n return pathname.slice(basename.length) || \"/\";\n}\n\nconst joinPaths = paths => paths.join(\"/\").replace(/\\/\\/+/g, \"/\");\n\nconst normalizePathname = pathname => pathname.replace(/\\/+$/, \"\").replace(/^\\/*/, \"/\");\n\nconst normalizeSearch = search => !search || search === \"?\" ? \"\" : search.startsWith(\"?\") ? search : \"?\" + search;\n\nconst normalizeHash = hash => !hash || hash === \"#\" ? \"\" : hash.startsWith(\"#\") ? hash : \"#\" + hash; ///////////////////////////////////////////////////////////////////////////////\n\nexport { MemoryRouter, Navigate, Outlet, Route, Router, Routes, LocationContext as UNSAFE_LocationContext, NavigationContext as UNSAFE_NavigationContext, RouteContext as UNSAFE_RouteContext, createRoutesFromChildren, generatePath, matchPath, matchRoutes, renderMatches, resolvePath, useHref, useInRouterContext, useLocation, useMatch, useNavigate, useNavigationType, useOutlet, useOutletContext, useParams, useResolvedPath, useRoutes };\n//# sourceMappingURL=index.js.map\n","/**\n * React Router DOM v6.2.1\n *\n * Copyright (c) Remix Software Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE.md file in the root directory of this source tree.\n *\n * @license MIT\n */\nimport { useRef, useState, useLayoutEffect, createElement, forwardRef, useCallback, useMemo } from 'react';\nimport { createBrowserHistory, createHashHistory, createPath } from 'history';\nimport { Router, useHref, useLocation, useResolvedPath, useNavigate } from 'react-router';\nexport { MemoryRouter, Navigate, Outlet, Route, Router, Routes, UNSAFE_LocationContext, UNSAFE_NavigationContext, UNSAFE_RouteContext, createRoutesFromChildren, generatePath, matchPath, matchRoutes, renderMatches, resolvePath, useHref, useInRouterContext, useLocation, useMatch, useNavigate, useNavigationType, useOutlet, useOutletContext, useParams, useResolvedPath, useRoutes } from 'react-router';\n\nfunction _extends() {\n _extends = Object.assign || function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n\n return target;\n };\n\n return _extends.apply(this, arguments);\n}\n\nfunction _objectWithoutPropertiesLoose(source, excluded) {\n if (source == null) return {};\n var target = {};\n var sourceKeys = Object.keys(source);\n var key, i;\n\n for (i = 0; i < sourceKeys.length; i++) {\n key = sourceKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n target[key] = source[key];\n }\n\n return target;\n}\n\nconst _excluded = [\"onClick\", \"reloadDocument\", \"replace\", \"state\", \"target\", \"to\"],\n _excluded2 = [\"aria-current\", \"caseSensitive\", \"className\", \"end\", \"style\", \"to\", \"children\"];\n\nfunction warning(cond, message) {\n if (!cond) {\n // eslint-disable-next-line no-console\n if (typeof console !== \"undefined\") console.warn(message);\n\n try {\n // Welcome to debugging React Router!\n //\n // This error is thrown as a convenience so you can more easily\n // find the source for a warning that appears in the console by\n // enabling \"pause on exceptions\" in your JavaScript debugger.\n throw new Error(message); // eslint-disable-next-line no-empty\n } catch (e) {}\n }\n} ////////////////////////////////////////////////////////////////////////////////\n// COMPONENTS\n////////////////////////////////////////////////////////////////////////////////\n\n/**\n * A `` for use in web browsers. Provides the cleanest URLs.\n */\nfunction BrowserRouter(_ref) {\n let {\n basename,\n children,\n window\n } = _ref;\n let historyRef = useRef();\n\n if (historyRef.current == null) {\n historyRef.current = createBrowserHistory({\n window\n });\n }\n\n let history = historyRef.current;\n let [state, setState] = useState({\n action: history.action,\n location: history.location\n });\n useLayoutEffect(() => history.listen(setState), [history]);\n return /*#__PURE__*/createElement(Router, {\n basename: basename,\n children: children,\n location: state.location,\n navigationType: state.action,\n navigator: history\n });\n}\n\n/**\n * A `` for use in web browsers. Stores the location in the hash\n * portion of the URL so it is not sent to the server.\n */\nfunction HashRouter(_ref2) {\n let {\n basename,\n children,\n window\n } = _ref2;\n let historyRef = useRef();\n\n if (historyRef.current == null) {\n historyRef.current = createHashHistory({\n window\n });\n }\n\n let history = historyRef.current;\n let [state, setState] = useState({\n action: history.action,\n location: history.location\n });\n useLayoutEffect(() => history.listen(setState), [history]);\n return /*#__PURE__*/createElement(Router, {\n basename: basename,\n children: children,\n location: state.location,\n navigationType: state.action,\n navigator: history\n });\n}\n\n/**\n * A `` that accepts a pre-instantiated history object. It's important\n * to note that using your own history object is highly discouraged and may add\n * two versions of the history library to your bundles unless you use the same\n * version of the history library that React Router uses internally.\n */\nfunction HistoryRouter(_ref3) {\n let {\n basename,\n children,\n history\n } = _ref3;\n const [state, setState] = useState({\n action: history.action,\n location: history.location\n });\n useLayoutEffect(() => history.listen(setState), [history]);\n return /*#__PURE__*/createElement(Router, {\n basename: basename,\n children: children,\n location: state.location,\n navigationType: state.action,\n navigator: history\n });\n}\n\nif (process.env.NODE_ENV !== \"production\") {\n HistoryRouter.displayName = \"unstable_HistoryRouter\";\n}\n\nfunction isModifiedEvent(event) {\n return !!(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey);\n}\n\n/**\n * The public API for rendering a history-aware .\n */\nconst Link = /*#__PURE__*/forwardRef(function LinkWithRef(_ref4, ref) {\n let {\n onClick,\n reloadDocument,\n replace = false,\n state,\n target,\n to\n } = _ref4,\n rest = _objectWithoutPropertiesLoose(_ref4, _excluded);\n\n let href = useHref(to);\n let internalOnClick = useLinkClickHandler(to, {\n replace,\n state,\n target\n });\n\n function handleClick(event) {\n if (onClick) onClick(event);\n\n if (!event.defaultPrevented && !reloadDocument) {\n internalOnClick(event);\n }\n }\n\n return (\n /*#__PURE__*/\n // eslint-disable-next-line jsx-a11y/anchor-has-content\n createElement(\"a\", _extends({}, rest, {\n href: href,\n onClick: handleClick,\n ref: ref,\n target: target\n }))\n );\n});\n\nif (process.env.NODE_ENV !== \"production\") {\n Link.displayName = \"Link\";\n}\n\n/**\n * A wrapper that knows if it's \"active\" or not.\n */\nconst NavLink = /*#__PURE__*/forwardRef(function NavLinkWithRef(_ref5, ref) {\n let {\n \"aria-current\": ariaCurrentProp = \"page\",\n caseSensitive = false,\n className: classNameProp = \"\",\n end = false,\n style: styleProp,\n to,\n children\n } = _ref5,\n rest = _objectWithoutPropertiesLoose(_ref5, _excluded2);\n\n let location = useLocation();\n let path = useResolvedPath(to);\n let locationPathname = location.pathname;\n let toPathname = path.pathname;\n\n if (!caseSensitive) {\n locationPathname = locationPathname.toLowerCase();\n toPathname = toPathname.toLowerCase();\n }\n\n let isActive = locationPathname === toPathname || !end && locationPathname.startsWith(toPathname) && locationPathname.charAt(toPathname.length) === \"/\";\n let ariaCurrent = isActive ? ariaCurrentProp : undefined;\n let className;\n\n if (typeof classNameProp === \"function\") {\n className = classNameProp({\n isActive\n });\n } else {\n // If the className prop is not a function, we use a default `active`\n // class for s that are active. In v5 `active` was the default\n // value for `activeClassName`, but we are removing that API and can still\n // use the old default behavior for a cleaner upgrade path and keep the\n // simple styling rules working as they currently do.\n className = [classNameProp, isActive ? \"active\" : null].filter(Boolean).join(\" \");\n }\n\n let style = typeof styleProp === \"function\" ? styleProp({\n isActive\n }) : styleProp;\n return /*#__PURE__*/createElement(Link, _extends({}, rest, {\n \"aria-current\": ariaCurrent,\n className: className,\n ref: ref,\n style: style,\n to: to\n }), typeof children === \"function\" ? children({\n isActive\n }) : children);\n});\n\nif (process.env.NODE_ENV !== \"production\") {\n NavLink.displayName = \"NavLink\";\n} ////////////////////////////////////////////////////////////////////////////////\n// HOOKS\n////////////////////////////////////////////////////////////////////////////////\n\n/**\n * Handles the click behavior for router `` components. This is useful if\n * you need to create custom `` components with the same click behavior we\n * use in our exported ``.\n */\n\n\nfunction useLinkClickHandler(to, _temp) {\n let {\n target,\n replace: replaceProp,\n state\n } = _temp === void 0 ? {} : _temp;\n let navigate = useNavigate();\n let location = useLocation();\n let path = useResolvedPath(to);\n return useCallback(event => {\n if (event.button === 0 && ( // Ignore everything but left clicks\n !target || target === \"_self\") && // Let browser handle \"target=_blank\" etc.\n !isModifiedEvent(event) // Ignore clicks with modifier keys\n ) {\n event.preventDefault(); // If the URL hasn't changed, a regular will do a replace instead of\n // a push, so do the same here.\n\n let replace = !!replaceProp || createPath(location) === createPath(path);\n navigate(to, {\n replace,\n state\n });\n }\n }, [location, navigate, path, replaceProp, state, target, to]);\n}\n/**\n * A convenient wrapper for reading and writing search parameters via the\n * URLSearchParams interface.\n */\n\nfunction useSearchParams(defaultInit) {\n process.env.NODE_ENV !== \"production\" ? warning(typeof URLSearchParams !== \"undefined\", \"You cannot use the `useSearchParams` hook in a browser that does not \" + \"support the URLSearchParams API. If you need to support Internet \" + \"Explorer 11, we recommend you load a polyfill such as \" + \"https://github.com/ungap/url-search-params\\n\\n\" + \"If you're unsure how to load polyfills, we recommend you check out \" + \"https://polyfill.io/v3/ which provides some recommendations about how \" + \"to load polyfills only for users that need them, instead of for every \" + \"user.\") : void 0;\n let defaultSearchParamsRef = useRef(createSearchParams(defaultInit));\n let location = useLocation();\n let searchParams = useMemo(() => {\n let searchParams = createSearchParams(location.search);\n\n for (let key of defaultSearchParamsRef.current.keys()) {\n if (!searchParams.has(key)) {\n defaultSearchParamsRef.current.getAll(key).forEach(value => {\n searchParams.append(key, value);\n });\n }\n }\n\n return searchParams;\n }, [location.search]);\n let navigate = useNavigate();\n let setSearchParams = useCallback((nextInit, navigateOptions) => {\n navigate(\"?\" + createSearchParams(nextInit), navigateOptions);\n }, [navigate]);\n return [searchParams, setSearchParams];\n}\n\n/**\n * Creates a URLSearchParams object using the given initializer.\n *\n * This is identical to `new URLSearchParams(init)` except it also\n * supports arrays as values in the object form of the initializer\n * instead of just strings. This is convenient when you need multiple\n * values for a given key, but don't want to use an array initializer.\n *\n * For example, instead of:\n *\n * let searchParams = new URLSearchParams([\n * ['sort', 'name'],\n * ['sort', 'price']\n * ]);\n *\n * you can do:\n *\n * let searchParams = createSearchParams({\n * sort: ['name', 'price']\n * });\n */\nfunction createSearchParams(init) {\n if (init === void 0) {\n init = \"\";\n }\n\n return new URLSearchParams(typeof init === \"string\" || Array.isArray(init) || init instanceof URLSearchParams ? init : Object.keys(init).reduce((memo, key) => {\n let value = init[key];\n return memo.concat(Array.isArray(value) ? value.map(v => [key, v]) : [[key, value]]);\n }, []));\n}\n\nexport { BrowserRouter, HashRouter, Link, NavLink, createSearchParams, HistoryRouter as unstable_HistoryRouter, useLinkClickHandler, useSearchParams };\n//# sourceMappingURL=index.js.map\n","// Copyright (c) Microsoft Corporation. All rights reserved.\r\n// Licensed under the MIT License.\r\nexport var strShimFunction = \"function\";\r\nexport var strShimObject = \"object\";\r\nexport var strShimUndefined = \"undefined\";\r\nexport var strShimPrototype = \"prototype\";\r\nexport var strShimHasOwnProperty = \"hasOwnProperty\";\r\nexport var strDefault = \"default\";\r\nexport var ObjClass = Object;\r\nexport var ObjProto = ObjClass[strShimPrototype];\r\nexport var ObjAssign = ObjClass[\"assign\"];\r\nexport var ObjCreate = ObjClass[\"create\"];\r\nexport var ObjDefineProperty = ObjClass[\"defineProperty\"];\r\nexport var ObjHasOwnProperty = ObjProto[strShimHasOwnProperty];\r\n//# sourceMappingURL=Constants.js.map","// Copyright (c) Microsoft Corporation. All rights reserved.\r\n// Licensed under the MIT License.\r\nimport { ObjCreate, strShimFunction, strShimObject, strShimPrototype, strShimUndefined } from \"./Constants\";\r\nvar _cachedGlobal = null;\r\n/**\r\n * Returns the current global scope object, for a normal web page this will be the current\r\n * window, for a Web Worker this will be current worker global scope via \"self\". The internal\r\n * implementation returns the first available instance object in the following order\r\n * - globalThis (New standard)\r\n * - self (Will return the current window instance for supported browsers)\r\n * - window (fallback for older browser implementations)\r\n * - global (NodeJS standard)\r\n * - (When all else fails)\r\n * While the return type is a Window for the normal case, not all environments will support all\r\n * of the properties or functions.\r\n */\r\nexport function getGlobal(useCached) {\r\n if (useCached === void 0) { useCached = true; }\r\n var result = useCached === false ? null : _cachedGlobal;\r\n if (!result) {\r\n if (typeof globalThis !== strShimUndefined) {\r\n result = globalThis;\r\n }\r\n if (!result && typeof self !== strShimUndefined) {\r\n result = self;\r\n }\r\n if (!result && typeof window !== strShimUndefined) {\r\n result = window;\r\n }\r\n if (!result && typeof global !== strShimUndefined) {\r\n result = global;\r\n }\r\n _cachedGlobal = result;\r\n }\r\n return result;\r\n}\r\nexport function throwTypeError(message) {\r\n throw new TypeError(message);\r\n}\r\n/**\r\n * Creates an object that has the specified prototype, and that optionally contains specified properties. This helper exists to avoid adding a polyfil\r\n * for older browsers that do not define Object.create eg. ES3 only, IE8 just in case any page checks for presence/absence of the prototype implementation.\r\n * Note: For consistency this will not use the Object.create implementation if it exists as this would cause a testing requirement to test with and without the implementations\r\n * @param obj Object to use as a prototype. May be null\r\n */\r\nexport function objCreateFn(obj) {\r\n var func = ObjCreate;\r\n // Use build in Object.create\r\n if (func) {\r\n // Use Object create method if it exists\r\n return func(obj);\r\n }\r\n if (obj == null) {\r\n return {};\r\n }\r\n var type = typeof obj;\r\n if (type !== strShimObject && type !== strShimFunction) {\r\n throwTypeError(\"Object prototype may only be an Object:\" + obj);\r\n }\r\n function tmpFunc() { }\r\n tmpFunc[strShimPrototype] = obj;\r\n return new tmpFunc();\r\n}\r\n//# sourceMappingURL=Helpers.js.map","// Copyright (c) Microsoft Corporation. All rights reserved.\r\n// Licensed under the MIT License.\r\nimport { ObjAssign, ObjClass, ObjCreate, ObjDefineProperty, ObjHasOwnProperty, ObjProto, strDefault, strShimFunction, strShimHasOwnProperty, strShimPrototype } from \"./Constants\";\r\nimport { getGlobal, objCreateFn, throwTypeError } from \"./Helpers\";\r\n// Most of these functions have been directly shamelessly \"lifted\" from the https://github.com/@microsoft/tslib and\r\n// modified to be ES3 compatible and applying several minification and tree-shaking techniques so that Application Insights\r\n// can successfully use TypeScript \"importHelpers\" which imports tslib during compilation but it will use these at runtime\r\n// Which is also why all of the functions have not been included as Application Insights currently doesn't use or require\r\n// them.\r\nexport var SymbolObj = (getGlobal() || {})[\"Symbol\"];\r\nexport var ReflectObj = (getGlobal() || {})[\"Reflect\"];\r\nexport var __hasSymbol = !!SymbolObj;\r\nexport var __hasReflect = !!ReflectObj;\r\nvar strDecorate = \"decorate\";\r\nvar strMetadata = \"metadata\";\r\nvar strGetOwnPropertySymbols = \"getOwnPropertySymbols\";\r\nvar strIterator = \"iterator\";\r\nexport var __objAssignFnImpl = function (t) {\r\n // tslint:disable-next-line: ban-comma-operator\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) {\r\n if (ObjProto[strShimHasOwnProperty].call(s, p)) {\r\n t[p] = s[p];\r\n }\r\n }\r\n }\r\n return t;\r\n};\r\nexport var __assignFn = ObjAssign || __objAssignFnImpl;\r\n// tslint:disable-next-line: only-arrow-functions\r\nvar extendStaticsFn = function (d, b) {\r\n extendStaticsFn = ObjClass[\"setPrototypeOf\"] ||\r\n // tslint:disable-next-line: only-arrow-functions\r\n ({ __proto__: [] } instanceof Array && function (d, b) {\r\n d.__proto__ = b;\r\n }) ||\r\n // tslint:disable-next-line: only-arrow-functions\r\n function (d, b) {\r\n for (var p in b) {\r\n if (b[strShimHasOwnProperty](p)) {\r\n d[p] = b[p];\r\n }\r\n }\r\n };\r\n return extendStaticsFn(d, b);\r\n};\r\nexport function __extendsFn(d, b) {\r\n if (typeof b !== strShimFunction && b !== null) {\r\n throwTypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n }\r\n extendStaticsFn(d, b);\r\n function __() {\r\n this.constructor = d;\r\n }\r\n // tslint:disable-next-line: ban-comma-operator\r\n d[strShimPrototype] = b === null ? objCreateFn(b) : (__[strShimPrototype] = b[strShimPrototype], new __());\r\n}\r\nexport function __restFn(s, e) {\r\n var t = {};\r\n for (var k in s) {\r\n if (ObjHasOwnProperty.call(s, k) && e.indexOf(k) < 0) {\r\n t[k] = s[k];\r\n }\r\n }\r\n if (s != null && typeof ObjClass[strGetOwnPropertySymbols] === strShimFunction) {\r\n for (var i = 0, p = ObjClass[strGetOwnPropertySymbols](s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && ObjProto[\"propertyIsEnumerable\"].call(s, p[i])) {\r\n t[p[i]] = s[p[i]];\r\n }\r\n }\r\n }\r\n return t;\r\n}\r\nexport function __decorateFn(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = ObjClass[\"getOwnPropertyDescriptor\"](target, key) : desc, d;\r\n if (__hasReflect && typeof ReflectObj[strDecorate] === strShimFunction) {\r\n r = ReflectObj[strDecorate](decorators, target, key, desc);\r\n }\r\n else {\r\n for (var i = decorators.length - 1; i >= 0; i--) {\r\n // eslint-disable-next-line no-cond-assign\r\n if (d = decorators[i]) {\r\n r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n }\r\n }\r\n }\r\n // tslint:disable-next-line:ban-comma-operator\r\n return c > 3 && r && ObjDefineProperty(target, key, r), r;\r\n}\r\nexport function __paramFn(paramIndex, decorator) {\r\n return function (target, key) {\r\n decorator(target, key, paramIndex);\r\n };\r\n}\r\nexport function __metadataFn(metadataKey, metadataValue) {\r\n if (__hasReflect && ReflectObj[strMetadata] === strShimFunction) {\r\n return ReflectObj[strMetadata](metadataKey, metadataValue);\r\n }\r\n}\r\nexport function __exportStarFn(m, o) {\r\n for (var p in m) {\r\n if (p !== strDefault && !ObjHasOwnProperty.call(o, p)) {\r\n __createBindingFn(o, m, p);\r\n }\r\n }\r\n}\r\nexport function __createBindingFn(o, m, k, k2) {\r\n if (k2 === undefined) {\r\n k2 = k;\r\n }\r\n if (!!ObjCreate) {\r\n ObjDefineProperty(o, k2, {\r\n enumerable: true,\r\n get: function () {\r\n return m[k];\r\n }\r\n });\r\n }\r\n else {\r\n o[k2] = m[k];\r\n }\r\n}\r\nexport function __valuesFn(o) {\r\n var s = typeof SymbolObj === strShimFunction && SymbolObj[strIterator], m = s && o[s], i = 0;\r\n if (m) {\r\n return m.call(o);\r\n }\r\n if (o && typeof o.length === \"number\") {\r\n return {\r\n next: function () {\r\n if (o && i >= o.length) {\r\n o = void 0;\r\n }\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n }\r\n throwTypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\nexport function __readFn(o, n) {\r\n var m = typeof SymbolObj === strShimFunction && o[SymbolObj[strIterator]];\r\n if (!m) {\r\n return o;\r\n }\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) {\r\n ar.push(r.value);\r\n }\r\n }\r\n catch (error) {\r\n e = {\r\n error: error\r\n };\r\n }\r\n finally {\r\n try {\r\n // tslint:disable-next-line:no-conditional-assignment\r\n if (r && !r.done && (m = i[\"return\"])) {\r\n m.call(i);\r\n }\r\n }\r\n finally {\r\n if (e) {\r\n // eslint-disable-next-line no-unsafe-finally\r\n throw e.error;\r\n }\r\n }\r\n }\r\n return ar;\r\n}\r\n/** @deprecated */\r\nexport function __spreadArraysFn() {\r\n var theArgs = arguments;\r\n // Calculate new total size\r\n for (var s = 0, i = 0, il = theArgs.length; i < il; i++) {\r\n s += theArgs[i].length;\r\n }\r\n // Create new full array\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++) {\r\n for (var a = theArgs[i], j = 0, jl = a.length; j < jl; j++, k++) {\r\n r[k] = a[j];\r\n }\r\n }\r\n return r;\r\n}\r\nexport function __spreadArrayFn(to, from) {\r\n for (var i = 0, il = from.length, j = to.length; i < il; i++, j++) {\r\n to[j] = from[i];\r\n }\r\n return to;\r\n}\r\nexport function __makeTemplateObjectFn(cooked, raw) {\r\n if (ObjDefineProperty) {\r\n ObjDefineProperty(cooked, \"raw\", { value: raw });\r\n }\r\n else {\r\n cooked.raw = raw;\r\n }\r\n return cooked;\r\n}\r\nexport function __importStarFn(mod) {\r\n if (mod && mod.__esModule) {\r\n return mod;\r\n }\r\n var result = {};\r\n if (mod != null) {\r\n for (var k in mod) {\r\n if (k !== strDefault && Object.prototype.hasOwnProperty.call(mod, k)) {\r\n __createBindingFn(result, mod, k);\r\n }\r\n }\r\n }\r\n // Set default module\r\n if (!!ObjCreate) {\r\n ObjDefineProperty(result, strDefault, { enumerable: true, value: mod });\r\n }\r\n else {\r\n result[strDefault] = mod;\r\n }\r\n return result;\r\n}\r\nexport function __importDefaultFn(mod) {\r\n return (mod && mod.__esModule) ? mod : { strDefault: mod };\r\n}\r\n//# sourceMappingURL=TsLibShims.js.map","/*!\n * Microsoft Dynamic Proto Utility, 1.1.9\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\nvar _a;\r\nvar UNDEFINED = \"undefined\";\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar Constructor = 'constructor';\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar Prototype = 'prototype';\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar strFunction = 'function';\r\n/**\r\n * Used to define the name of the instance function lookup table\r\n * @ignore\r\n */\r\nvar DynInstFuncTable = '_dynInstFuncs';\r\n/**\r\n * Name used to tag the dynamic prototype function\r\n * @ignore\r\n */\r\nvar DynProxyTag = '_isDynProxy';\r\n/**\r\n * Name added to a prototype to define the dynamic prototype \"class\" name used to lookup the function table\r\n * @ignore\r\n */\r\nvar DynClassName = '_dynClass';\r\n/**\r\n * Prefix added to the classname to avoid any name clashes with other instance level properties\r\n * @ignore\r\n */\r\nvar DynClassNamePrefix = '_dynCls$';\r\n/**\r\n * A tag which is used to check if we have already to attempted to set the instance function if one is not present\r\n * @ignore\r\n */\r\nvar DynInstChkTag = '_dynInstChk';\r\n/**\r\n * A tag which is used to check if we are allows to try and set an instance function is one is not present. Using the same\r\n * tag name as the function level but a different const name for readability only.\r\n */\r\nvar DynAllowInstChkTag = DynInstChkTag;\r\n/**\r\n * The global (imported) instances where the global performance options are stored\r\n */\r\nvar DynProtoDefaultOptions = '_dfOpts';\r\n/**\r\n * Value used as the name of a class when it cannot be determined\r\n * @ignore\r\n */\r\nvar UnknownValue = '_unknown_';\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar str__Proto = \"__proto__\";\r\n/**\r\n * The polyfill version of __proto__ so that it doesn't cause issues for anyone not expecting it to exist\r\n */\r\nvar DynProtoBaseProto = \"_dyn\" + str__Proto;\r\n/**\r\n * Runtime Global holder for dynamicProto settings\r\n */\r\nvar DynProtoGlobalSettings = \"__dynProto$Gbl\";\r\n/**\r\n * Track the current prototype for IE8 as you can't look back to get the prototype\r\n */\r\nvar DynProtoCurrent = \"_dynInstProto\";\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar strUseBaseInst = 'useBaseInst';\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar strSetInstFuncs = 'setInstFuncs';\r\nvar Obj = Object;\r\n/**\r\n * Pre-lookup to check if we are running on a modern browser (i.e. not IE8)\r\n * @ignore\r\n */\r\nvar _objGetPrototypeOf = Obj[\"getPrototypeOf\"];\r\n/**\r\n * Pre-lookup to check for the existence of this function\r\n */\r\nvar _objGetOwnProps = Obj[\"getOwnPropertyNames\"];\r\n/**\r\n * Gets the runtime global reference\r\n * @returns\r\n */\r\nfunction _getGlobal() {\r\n var result;\r\n if (typeof globalThis !== UNDEFINED) {\r\n result = globalThis;\r\n }\r\n if (!result && typeof self !== UNDEFINED) {\r\n result = self;\r\n }\r\n if (!result && typeof window !== UNDEFINED) {\r\n result = window;\r\n }\r\n if (!result && typeof global !== UNDEFINED) {\r\n result = global;\r\n }\r\n return result || {};\r\n}\r\n// Since 1.1.7 moving these to the runtime global to work around mixed version and module issues\r\n// See Issue https://github.com/microsoft/DynamicProto-JS/issues/57 for details\r\nvar _gbl = _getGlobal();\r\nvar _gblInst = _gbl[DynProtoGlobalSettings] || (_gbl[DynProtoGlobalSettings] = {\r\n o: (_a = {},\r\n _a[strSetInstFuncs] = true,\r\n _a[strUseBaseInst] = true,\r\n _a),\r\n n: 1000 // Start new global index @ 1000 so we \"fix\" some cases when mixed with 1.1.6 or earlier\r\n});\r\n/**\r\n * Helper to check if the object contains a property of the name\r\n * @ignore\r\n */\r\nfunction _hasOwnProperty(obj, prop) {\r\n return obj && Obj[Prototype].hasOwnProperty.call(obj, prop);\r\n}\r\n/**\r\n * Helper used to check whether the target is an Object prototype or Array prototype\r\n * @ignore\r\n */\r\nfunction _isObjectOrArrayPrototype(target) {\r\n return target && (target === Obj[Prototype] || target === Array[Prototype]);\r\n}\r\n/**\r\n * Helper used to check whether the target is an Object prototype, Array prototype or Function prototype\r\n * @ignore\r\n */\r\nfunction _isObjectArrayOrFunctionPrototype(target) {\r\n return _isObjectOrArrayPrototype(target) || target === Function[Prototype];\r\n}\r\n/**\r\n * Helper used to get the prototype of the target object as getPrototypeOf is not available in an ES3 environment.\r\n * @ignore\r\n */\r\nfunction _getObjProto(target) {\r\n var newProto;\r\n if (target) {\r\n // This method doesn't exist in older browsers (e.g. IE8)\r\n if (_objGetPrototypeOf) {\r\n return _objGetPrototypeOf(target);\r\n }\r\n var curProto = target[str__Proto] || target[Prototype] || (target[Constructor] ? target[Constructor][Prototype] : null);\r\n // Using the pre-calculated value as IE8 doesn't support looking up the prototype of a prototype and thus fails for more than 1 base class\r\n newProto = target[DynProtoBaseProto] || curProto;\r\n if (!_hasOwnProperty(target, DynProtoBaseProto)) {\r\n // As this prototype doesn't have this property then this is from an inherited class so newProto is the base to return so save it\r\n // so we can look it up value (which for a multiple hierarchy dynamicProto will be the base class)\r\n delete target[DynProtoCurrent]; // Delete any current value allocated to this instance so we pick up the value from prototype hierarchy\r\n newProto = target[DynProtoBaseProto] = target[DynProtoCurrent] || target[DynProtoBaseProto];\r\n target[DynProtoCurrent] = curProto;\r\n }\r\n }\r\n return newProto;\r\n}\r\n/**\r\n * Helper to get the properties of an object, including none enumerable ones as functions on a prototype in ES6\r\n * are not enumerable.\r\n * @param target\r\n */\r\nfunction _forEachProp(target, func) {\r\n var props = [];\r\n if (_objGetOwnProps) {\r\n props = _objGetOwnProps(target);\r\n }\r\n else {\r\n for (var name_1 in target) {\r\n if (typeof name_1 === \"string\" && _hasOwnProperty(target, name_1)) {\r\n props.push(name_1);\r\n }\r\n }\r\n }\r\n if (props && props.length > 0) {\r\n for (var lp = 0; lp < props.length; lp++) {\r\n func(props[lp]);\r\n }\r\n }\r\n}\r\n/**\r\n * Helper function to check whether the provided function name is a potential candidate for dynamic\r\n * callback and prototype generation.\r\n * @param target The target object, may be a prototype or class object\r\n * @param funcName The function name\r\n * @param skipOwn Skips the check for own property\r\n * @ignore\r\n */\r\nfunction _isDynamicCandidate(target, funcName, skipOwn) {\r\n return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || _hasOwnProperty(target, funcName)));\r\n}\r\n/**\r\n * Helper to throw a TypeError exception\r\n * @param message the message\r\n * @ignore\r\n */\r\nfunction _throwTypeError(message) {\r\n throw new TypeError(\"DynamicProto: \" + message);\r\n}\r\n/**\r\n * Returns a collection of the instance functions that are defined directly on the thisTarget object, it does\r\n * not return any inherited functions\r\n * @param thisTarget The object to get the instance functions from\r\n * @ignore\r\n */\r\nfunction _getInstanceFuncs(thisTarget) {\r\n // Get the base proto\r\n var instFuncs = {};\r\n // Save any existing instance functions\r\n _forEachProp(thisTarget, function (name) {\r\n // Don't include any dynamic prototype instances - as we only want the real functions\r\n if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {\r\n // Create an instance callback for passing the base function to the caller\r\n instFuncs[name] = thisTarget[name];\r\n }\r\n });\r\n return instFuncs;\r\n}\r\n/**\r\n * Returns whether the value is included in the array\r\n * @param values The array of values\r\n * @param value The value\r\n */\r\nfunction _hasVisited(values, value) {\r\n for (var lp = values.length - 1; lp >= 0; lp--) {\r\n if (values[lp] === value) {\r\n return true;\r\n }\r\n }\r\n return false;\r\n}\r\n/**\r\n * Returns an object that contains callback functions for all \"base/super\" functions, this is used to \"save\"\r\n * enabling calling super.xxx() functions without requiring that the base \"class\" has defined a prototype references\r\n * @param target The current instance\r\n * @ignore\r\n */\r\nfunction _getBaseFuncs(classProto, thisTarget, instFuncs, useBaseInst) {\r\n function _instFuncProxy(target, funcHost, funcName) {\r\n var theFunc = funcHost[funcName];\r\n if (theFunc[DynProxyTag] && useBaseInst) {\r\n // grab and reuse the hosted looking function (if available) otherwise the original passed function\r\n var instFuncTable = target[DynInstFuncTable] || {};\r\n if (instFuncTable[DynAllowInstChkTag] !== false) {\r\n theFunc = (instFuncTable[funcHost[DynClassName]] || {})[funcName] || theFunc;\r\n }\r\n }\r\n return function () {\r\n // eslint-disable-next-line prefer-rest-params\r\n return theFunc.apply(target, arguments);\r\n };\r\n }\r\n // Start creating a new baseFuncs by creating proxies for the instance functions (as they may get replaced)\r\n var baseFuncs = {};\r\n _forEachProp(instFuncs, function (name) {\r\n // Create an instance callback for passing the base function to the caller\r\n baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);\r\n });\r\n // Get the base prototype functions\r\n var baseProto = _getObjProto(classProto);\r\n var visited = [];\r\n // Don't include base object functions for Object, Array or Function\r\n while (baseProto && !_isObjectArrayOrFunctionPrototype(baseProto) && !_hasVisited(visited, baseProto)) {\r\n // look for prototype functions\r\n _forEachProp(baseProto, function (name) {\r\n // Don't include any dynamic prototype instances - as we only want the real functions\r\n // For IE 7/8 the prototype lookup doesn't provide the full chain so we need to bypass the \r\n // hasOwnProperty check we get all of the methods, main difference is that IE7/8 doesn't return\r\n // the Object prototype methods while bypassing the check\r\n if (!baseFuncs[name] && _isDynamicCandidate(baseProto, name, !_objGetPrototypeOf)) {\r\n // Create an instance callback for passing the base function to the caller\r\n baseFuncs[name] = _instFuncProxy(thisTarget, baseProto, name);\r\n }\r\n });\r\n // We need to find all possible functions that might be overloaded by walking the entire prototype chain\r\n // This avoids the caller from needing to check whether it's direct base class implements the function or not\r\n // by walking the entire chain it simplifies the usage and issues from upgrading any of the base classes.\r\n visited.push(baseProto);\r\n baseProto = _getObjProto(baseProto);\r\n }\r\n return baseFuncs;\r\n}\r\nfunction _getInstFunc(target, funcName, proto, currentDynProtoProxy) {\r\n var instFunc = null;\r\n // We need to check whether the class name is defined directly on this prototype otherwise\r\n // it will walk the proto chain and return any parent proto classname.\r\n if (target && _hasOwnProperty(proto, DynClassName)) {\r\n var instFuncTable = target[DynInstFuncTable] || {};\r\n instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];\r\n if (!instFunc) {\r\n // Avoid stack overflow from recursive calling the same function\r\n _throwTypeError(\"Missing [\" + funcName + \"] \" + strFunction);\r\n }\r\n // We have the instance function, lets check it we can speed up further calls\r\n // by adding the instance function back directly on the instance (avoiding the dynamic func lookup)\r\n if (!instFunc[DynInstChkTag] && instFuncTable[DynAllowInstChkTag] !== false) {\r\n // If the instance already has an instance function we can't replace it\r\n var canAddInst = !_hasOwnProperty(target, funcName);\r\n // Get current prototype\r\n var objProto = _getObjProto(target);\r\n var visited = [];\r\n // Lookup the function starting at the top (instance level prototype) and traverse down, if the first matching function\r\n // if nothing is found or if the first hit is a dynamic proto instance then we can safely add an instance shortcut\r\n while (canAddInst && objProto && !_isObjectArrayOrFunctionPrototype(objProto) && !_hasVisited(visited, objProto)) {\r\n var protoFunc = objProto[funcName];\r\n if (protoFunc) {\r\n canAddInst = (protoFunc === currentDynProtoProxy);\r\n break;\r\n }\r\n // We need to find all possible initial functions to ensure that we don't bypass a valid override function\r\n visited.push(objProto);\r\n objProto = _getObjProto(objProto);\r\n }\r\n try {\r\n if (canAddInst) {\r\n // This instance doesn't have an instance func and the class hierarchy does have a higher level prototype version\r\n // so it's safe to directly assign for any subsequent calls (for better performance)\r\n target[funcName] = instFunc;\r\n }\r\n // Block further attempts to set the instance function for any\r\n instFunc[DynInstChkTag] = 1;\r\n }\r\n catch (e) {\r\n // Don't crash if the object is readonly or the runtime doesn't allow changing this\r\n // And set a flag so we don't try again for any function\r\n instFuncTable[DynAllowInstChkTag] = false;\r\n }\r\n }\r\n }\r\n return instFunc;\r\n}\r\nfunction _getProtoFunc(funcName, proto, currentDynProtoProxy) {\r\n var protoFunc = proto[funcName];\r\n // Check that the prototype function is not a self reference -- try to avoid stack overflow!\r\n if (protoFunc === currentDynProtoProxy) {\r\n // It is so lookup the base prototype\r\n protoFunc = _getObjProto(proto)[funcName];\r\n }\r\n if (typeof protoFunc !== strFunction) {\r\n _throwTypeError(\"[\" + funcName + \"] is not a \" + strFunction);\r\n }\r\n return protoFunc;\r\n}\r\n/**\r\n * Add the required dynamic prototype methods to the the class prototype\r\n * @param proto - The class prototype\r\n * @param className - The instance classname\r\n * @param target - The target instance\r\n * @param baseInstFuncs - The base instance functions\r\n * @param setInstanceFunc - Flag to allow prototype function to reset the instance function if one does not exist\r\n * @ignore\r\n */\r\nfunction _populatePrototype(proto, className, target, baseInstFuncs, setInstanceFunc) {\r\n function _createDynamicPrototype(proto, funcName) {\r\n var dynProtoProxy = function () {\r\n // Use the instance or prototype function\r\n var instFunc = _getInstFunc(this, funcName, proto, dynProtoProxy) || _getProtoFunc(funcName, proto, dynProtoProxy);\r\n // eslint-disable-next-line prefer-rest-params\r\n return instFunc.apply(this, arguments);\r\n };\r\n // Tag this function as a proxy to support replacing dynamic proxy elements (primary use case is for unit testing\r\n // via which can dynamically replace the prototype function reference)\r\n dynProtoProxy[DynProxyTag] = 1;\r\n return dynProtoProxy;\r\n }\r\n if (!_isObjectOrArrayPrototype(proto)) {\r\n var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};\r\n var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {}); // fetch and assign if as it may not exist yet\r\n // Set whether we are allow to lookup instances, if someone has set to false then do not re-enable\r\n if (instFuncTable[DynAllowInstChkTag] !== false) {\r\n instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;\r\n }\r\n _forEachProp(target, function (name) {\r\n // Only add overridden functions\r\n if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {\r\n // Save the instance Function to the lookup table and remove it from the instance as it's not a dynamic proto function\r\n instFuncs_1[name] = target[name];\r\n delete target[name];\r\n // Add a dynamic proto if one doesn't exist or if a prototype function exists and it's not a dynamic one\r\n if (!_hasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {\r\n proto[name] = _createDynamicPrototype(proto, name);\r\n }\r\n }\r\n });\r\n }\r\n}\r\n/**\r\n * Checks whether the passed prototype object appears to be correct by walking the prototype hierarchy of the instance\r\n * @param classProto The class prototype instance\r\n * @param thisTarget The current instance that will be checked whether the passed prototype instance is in the hierarchy\r\n * @ignore\r\n */\r\nfunction _checkPrototype(classProto, thisTarget) {\r\n // This method doesn't existing in older browsers (e.g. IE8)\r\n if (_objGetPrototypeOf) {\r\n // As this is primarily a coding time check, don't bother checking if running in IE8 or lower\r\n var visited = [];\r\n var thisProto = _getObjProto(thisTarget);\r\n while (thisProto && !_isObjectArrayOrFunctionPrototype(thisProto) && !_hasVisited(visited, thisProto)) {\r\n if (thisProto === classProto) {\r\n return true;\r\n }\r\n // This avoids the caller from needing to check whether it's direct base class implements the function or not\r\n // by walking the entire chain it simplifies the usage and issues from upgrading any of the base classes.\r\n visited.push(thisProto);\r\n thisProto = _getObjProto(thisProto);\r\n }\r\n return false;\r\n }\r\n // If objGetPrototypeOf doesn't exist then just assume everything is ok.\r\n return true;\r\n}\r\n/**\r\n * Gets the current prototype name using the ES6 name if available otherwise falling back to a use unknown as the name.\r\n * It's not critical for this to return a name, it's used to decorate the generated unique name for easier debugging only.\r\n * @param target\r\n * @param unknownValue\r\n * @ignore\r\n */\r\nfunction _getObjName(target, unknownValue) {\r\n if (_hasOwnProperty(target, Prototype)) {\r\n // Look like a prototype\r\n return target.name || unknownValue || UnknownValue;\r\n }\r\n return (((target || {})[Constructor]) || {}).name || unknownValue || UnknownValue;\r\n}\r\n/**\r\n * Helper function when creating dynamic (inline) functions for classes, this helper performs the following tasks :-\r\n * - Saves references to all defined base class functions\r\n * - Calls the delegateFunc with the current target (this) and a base object reference that can be used to call all \"super\" functions.\r\n * - Will populate the class prototype for all overridden functions to support class extension that call the prototype instance.\r\n * Callers should use this helper when declaring all function within the constructor of a class, as mentioned above the delegateFunc is\r\n * passed both the target \"this\" and an object that can be used to call any base (super) functions, using this based object in place of\r\n * super.XXX() (which gets expanded to _super.prototype.XXX()) provides a better minification outcome and also ensures the correct \"this\"\r\n * context is maintained as TypeScript creates incorrect references using super.XXXX() for dynamically defined functions i.e. Functions\r\n * defined in the constructor or some other function (rather than declared as complete typescript functions).\r\n * ### Usage\r\n * ```typescript\r\n * import dynamicProto from \"@microsoft/dynamicproto-js\";\r\n * class ExampleClass extends BaseClass {\r\n * constructor() {\r\n * dynamicProto(ExampleClass, this, (_self, base) => {\r\n * // This will define a function that will be converted to a prototype function\r\n * _self.newFunc = () => {\r\n * // Access any \"this\" instance property\r\n * if (_self.someProperty) {\r\n * ...\r\n * }\r\n * }\r\n * // This will define a function that will be converted to a prototype function\r\n * _self.myFunction = () => {\r\n * // Access any \"this\" instance property\r\n * if (_self.someProperty) {\r\n * // Call the base version of the function that we are overriding\r\n * base.myFunction();\r\n * }\r\n * ...\r\n * }\r\n * _self.initialize = () => {\r\n * ...\r\n * }\r\n * // Warnings: While the following will work as _self is simply a reference to\r\n * // this, if anyone overrides myFunction() the overridden will be called first\r\n * // as the normal JavaScript method resolution will occur and the defined\r\n * // _self.initialize() function is actually gets removed from the instance and\r\n * // a proxy prototype version is created to reference the created method.\r\n * _self.initialize();\r\n * });\r\n * }\r\n * }\r\n * ```\r\n * @typeparam DPType This is the generic type of the class, used to keep intellisense valid\r\n * @typeparam DPCls The type that contains the prototype of the current class\r\n * @param theClass - This is the current class instance which contains the prototype for the current class\r\n * @param target - The current \"this\" (target) reference, when the class has been extended this.prototype will not be the 'theClass' value.\r\n * @param delegateFunc - The callback function (closure) that will create the dynamic function\r\n * @param options - Additional options to configure how the dynamic prototype operates\r\n */\r\nfunction dynamicProto(theClass, target, delegateFunc, options) {\r\n // Make sure that the passed theClass argument looks correct\r\n if (!_hasOwnProperty(theClass, Prototype)) {\r\n _throwTypeError(\"theClass is an invalid class definition.\");\r\n }\r\n // Quick check to make sure that the passed theClass argument looks correct (this is a common copy/paste error)\r\n var classProto = theClass[Prototype];\r\n if (!_checkPrototype(classProto, target)) {\r\n _throwTypeError(\"[\" + _getObjName(theClass) + \"] not in hierarchy of [\" + _getObjName(target) + \"]\");\r\n }\r\n var className = null;\r\n if (_hasOwnProperty(classProto, DynClassName)) {\r\n // Only grab the class name if it's defined on this prototype (i.e. don't walk the prototype chain)\r\n className = classProto[DynClassName];\r\n }\r\n else {\r\n // As not all browser support name on the prototype creating a unique dynamic one if we have not already\r\n // assigned one, so we can use a simple string as the lookup rather than an object for the dynamic instance\r\n // function table lookup.\r\n className = DynClassNamePrefix + _getObjName(theClass, \"_\") + \"$\" + _gblInst.n;\r\n _gblInst.n++;\r\n classProto[DynClassName] = className;\r\n }\r\n var perfOptions = dynamicProto[DynProtoDefaultOptions];\r\n var useBaseInst = !!perfOptions[strUseBaseInst];\r\n if (useBaseInst && options && options[strUseBaseInst] !== undefined) {\r\n useBaseInst = !!options[strUseBaseInst];\r\n }\r\n // Get the current instance functions\r\n var instFuncs = _getInstanceFuncs(target);\r\n // Get all of the functions for any base instance (before they are potentially overridden)\r\n var baseFuncs = _getBaseFuncs(classProto, target, instFuncs, useBaseInst);\r\n // Execute the delegate passing in both the current target \"this\" and \"base\" function references\r\n // Note casting the same type as we don't actually have the base class here and this will provide some intellisense support\r\n delegateFunc(target, baseFuncs);\r\n // Don't allow setting instance functions for older IE instances\r\n var setInstanceFunc = !!_objGetPrototypeOf && !!perfOptions[strSetInstFuncs];\r\n if (setInstanceFunc && options) {\r\n setInstanceFunc = !!options[strSetInstFuncs];\r\n }\r\n // Populate the Prototype for any overridden instance functions\r\n _populatePrototype(classProto, className, target, instFuncs, setInstanceFunc !== false);\r\n}\r\n/**\r\n * Exposes the default global options to allow global configuration, if the global values are disabled these will override\r\n * any passed values. This is primarily exposed to support unit-testing without the need for individual classes to expose\r\n * their internal usage of dynamic proto.\r\n */\r\ndynamicProto[DynProtoDefaultOptions] = _gblInst.o;\n\nexport { dynamicProto as default };\n//# sourceMappingURL=dynamicproto-js.js.map\n","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n// @skip-file-minify\r\n// ##############################################################\r\n// AUTO GENERATED FILE: This file is Auto Generated during build.\r\n// ##############################################################\r\n// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\r\n// Note: DON'T Export these const from the package as we are still targeting ES3 this will export a mutable variables that someone could change!!!\r\n// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\r\nexport var _DYN_INITIALIZE = \"initialize\"; // Count: 8\r\nexport var _DYN_NAME = \"name\"; // Count: 11\r\nexport var _DYN_GET_NOTIFY_MGR = \"getNotifyMgr\"; // Count: 3\r\nexport var _DYN_IDENTIFIER = \"identifier\"; // Count: 8\r\nexport var _DYN_PUSH = \"push\"; // Count: 30\r\nexport var _DYN_IS_INITIALIZED = \"isInitialized\"; // Count: 10\r\nexport var _DYN_CONFIG = \"config\"; // Count: 7\r\nexport var _DYN_INSTRUMENTATION_KEY = \"instrumentationKey\"; // Count: 3\r\nexport var _DYN_LOGGER = \"logger\"; // Count: 10\r\nexport var _DYN_LENGTH = \"length\"; // Count: 44\r\nexport var _DYN_TIME = \"time\"; // Count: 5\r\nexport var _DYN_PROCESS_NEXT = \"processNext\"; // Count: 21\r\nexport var _DYN_GET_PROCESS_TEL_CONT0 = \"getProcessTelContext\"; // Count: 2\r\nexport var _DYN_ADD_NOTIFICATION_LIS1 = \"addNotificationListener\"; // Count: 5\r\nexport var _DYN_REMOVE_NOTIFICATION_2 = \"removeNotificationListener\"; // Count: 5\r\nexport var _DYN_STOP_POLLING_INTERNA3 = \"stopPollingInternalLogs\"; // Count: 2\r\nexport var _DYN_ON_COMPLETE = \"onComplete\"; // Count: 6\r\nexport var _DYN_GET_PLUGIN = \"getPlugin\"; // Count: 5\r\nexport var _DYN_FLUSH = \"flush\"; // Count: 5\r\nexport var _DYN__EXTENSIONS = \"_extensions\"; // Count: 4\r\nexport var _DYN_SPLICE = \"splice\"; // Count: 6\r\nexport var _DYN_TEARDOWN = \"teardown\"; // Count: 10\r\nexport var _DYN_MESSAGE_ID = \"messageId\"; // Count: 4\r\nexport var _DYN_MESSAGE = \"message\"; // Count: 7\r\nexport var _DYN_IS_ASYNC = \"isAsync\"; // Count: 7\r\nexport var _DYN__DO_TEARDOWN = \"_doTeardown\"; // Count: 4\r\nexport var _DYN_UPDATE = \"update\"; // Count: 7\r\nexport var _DYN_GET_NEXT = \"getNext\"; // Count: 12\r\nexport var _DYN_DIAG_LOG = \"diagLog\"; // Count: 8\r\nexport var _DYN_SET_NEXT_PLUGIN = \"setNextPlugin\"; // Count: 5\r\nexport var _DYN_CREATE_NEW = \"createNew\"; // Count: 6\r\nexport var _DYN_COOKIE_CFG = \"cookieCfg\"; // Count: 3\r\nexport var _DYN_INDEX_OF = \"indexOf\"; // Count: 6\r\nexport var _DYN_SUBSTRING = \"substring\"; // Count: 10\r\nexport var _DYN_USER_AGENT = \"userAgent\"; // Count: 5\r\nexport var _DYN_SPLIT = \"split\"; // Count: 5\r\nexport var _DYN_SET_ENABLED = \"setEnabled\"; // Count: 5\r\nexport var _DYN_SUBSTR = \"substr\"; // Count: 6\r\nexport var _DYN_NODE_TYPE = \"nodeType\"; // Count: 3\r\nexport var _DYN_APPLY = \"apply\"; // Count: 6\r\nexport var _DYN_REPLACE = \"replace\"; // Count: 10\r\nexport var _DYN_ENABLE_DEBUG_EXCEPTI4 = \"enableDebugExceptions\"; // Count: 2\r\nexport var _DYN_LOG_INTERNAL_MESSAGE = \"logInternalMessage\"; // Count: 2\r\nexport var _DYN_TO_LOWER_CASE = \"toLowerCase\"; // Count: 5\r\nexport var _DYN_CALL = \"call\"; // Count: 18\r\nexport var _DYN_TYPE = \"type\"; // Count: 14\r\nexport var _DYN_HANDLER = \"handler\"; // Count: 5\r\nexport var _DYN_LISTENERS = \"listeners\"; // Count: 6\r\nexport var _DYN_IS_CHILD_EVT = \"isChildEvt\"; // Count: 3\r\nexport var _DYN_GET_CTX = \"getCtx\"; // Count: 6\r\nexport var _DYN_SET_CTX = \"setCtx\"; // Count: 10\r\nexport var _DYN_COMPLETE = \"complete\"; // Count: 3\r\nexport var _DYN_TRACE_ID = \"traceId\"; // Count: 5\r\nexport var _DYN_SPAN_ID = \"spanId\"; // Count: 5\r\nexport var _DYN_TRACE_FLAGS = \"traceFlags\"; // Count: 6\r\nexport var _DYN_VERSION = \"version\"; // Count: 4\r\n//# sourceMappingURL=__DynamicConstants.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\r\n// Note: DON'T Export these const from the package as we are still targeting ES3 this will export a mutable variables that someone could change!!!\r\n// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\r\nexport var STR_EMPTY = \"\";\r\nexport var STR_CHANNELS = \"channels\";\r\nexport var STR_CORE = \"core\";\r\nexport var STR_CREATE_PERF_MGR = \"createPerfMgr\";\r\nexport var STR_DISABLED = \"disabled\";\r\nexport var STR_EXTENSION_CONFIG = \"extensionConfig\";\r\nexport var STR_EXTENSIONS = \"extensions\";\r\nexport var STR_PROCESS_TELEMETRY = \"processTelemetry\";\r\nexport var STR_PRIORITY = \"priority\";\r\nexport var STR_EVENTS_SENT = \"eventsSent\";\r\nexport var STR_EVENTS_DISCARDED = \"eventsDiscarded\";\r\nexport var STR_EVENTS_SEND_REQUEST = \"eventsSendRequest\";\r\nexport var STR_PERF_EVENT = \"perfEvent\";\r\nexport var STR_ERROR_TO_CONSOLE = \"errorToConsole\";\r\nexport var STR_WARN_TO_CONSOLE = \"warnToConsole\";\r\nexport var STR_GET_PERF_MGR = \"getPerfMgr\";\r\n//# sourceMappingURL=InternalConstants.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport { ObjAssign, ObjClass, ObjDefineProperty, ObjHasOwnProperty, ObjProto, strShimFunction, strShimObject, strShimPrototype, strShimUndefined, throwTypeError } from \"@microsoft/applicationinsights-shims\";\r\nimport { _DYN_APPLY, _DYN_CALL, _DYN_INDEX_OF, _DYN_LENGTH, _DYN_NAME, _DYN_PUSH, _DYN_REPLACE } from \"../__DynamicConstants\";\r\nimport { STR_EMPTY } from \"./InternalConstants\";\r\n// RESTRICT and AVOID circular dependencies you should not import other contained modules or export the contents of this file directly\r\n// Added to help with minfication\r\nvar strToISOString = \"toISOString\";\r\nvar cStrEndsWith = \"endsWith\";\r\nvar cStrStartsWith = \"startsWith\";\r\nvar strIndexOf = \"indexOf\";\r\nvar strMap = \"map\";\r\nvar strReduce = \"reduce\";\r\nvar cStrTrim = \"trim\";\r\nvar strToString = \"toString\";\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar str__Proto = \"__proto__\";\r\n/**\r\n * Constant string defined to support minimization\r\n * @ignore\r\n */\r\nvar strConstructor = \"constructor\";\r\nvar _objDefineProperty = ObjDefineProperty;\r\nvar _objFreeze = ObjClass.freeze;\r\nvar _objSeal = ObjClass.seal;\r\nvar _objKeys = ObjClass.keys;\r\nvar StringProto = String[strShimPrototype];\r\nvar _strTrim = StringProto[cStrTrim];\r\nvar _strEndsWith = StringProto[cStrEndsWith];\r\nvar _strStartsWith = StringProto[cStrStartsWith];\r\nvar DateProto = Date[strShimPrototype];\r\nvar _dataToISOString = DateProto[strToISOString];\r\nvar _isArray = Array.isArray;\r\nvar _objToString = ObjProto[strToString];\r\nvar _fnToString = ObjHasOwnProperty[strToString];\r\n// Cache what this browser reports as the object function constructor (as a string)\r\nvar _objFunctionString = _fnToString[_DYN_CALL /* @min:%2ecall */](ObjClass);\r\nvar rCamelCase = /-([a-z])/g;\r\nvar rNormalizeInvalid = /([^\\w\\d_$])/g;\r\nvar rLeadingNumeric = /^(\\d+[\\w\\d_$])/;\r\n/**\r\n * Pre-lookup to check if we are running on a modern browser (i.e. not IE8)\r\n * @ignore\r\n */\r\nvar _objGetPrototypeOf = Object[\"getPrototypeOf\"];\r\n/**\r\n * Helper used to get the prototype of the target object as getPrototypeOf is not available in an ES3 environment.\r\n * @ignore\r\n */\r\nexport function _getObjProto(target) {\r\n if (target) {\r\n // This method doesn't existing in older browsers (e.g. IE8)\r\n if (_objGetPrototypeOf) {\r\n return _objGetPrototypeOf(target);\r\n }\r\n // target[Constructor] May break if the constructor has been changed or removed\r\n var newProto = target[str__Proto] || target[strShimPrototype] || target[strConstructor];\r\n if (newProto) {\r\n return newProto;\r\n }\r\n }\r\n return null;\r\n}\r\nexport function objToString(obj) {\r\n return _objToString[_DYN_CALL /* @min:%2ecall */](obj);\r\n}\r\nexport function isTypeof(value, theType) {\r\n return typeof value === theType;\r\n}\r\nexport function isUndefined(value) {\r\n return value === undefined || typeof value === strShimUndefined;\r\n}\r\nexport function isNotUndefined(value) {\r\n return !isUndefined(value);\r\n}\r\nexport function isNullOrUndefined(value) {\r\n return (value === null || isUndefined(value));\r\n}\r\nexport function isNotNullOrUndefined(value) {\r\n return !isNullOrUndefined(value);\r\n}\r\nexport function hasOwnProperty(obj, prop) {\r\n return !!(obj && ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](obj, prop));\r\n}\r\nexport function isObject(value) {\r\n // Changing to inline for performance\r\n return !!(value && typeof value === strShimObject);\r\n}\r\nexport function isFunction(value) {\r\n // Changing to inline for performance\r\n return !!(value && typeof value === strShimFunction);\r\n}\r\nexport function isPromiseLike(value) {\r\n return value && isFunction(value.then);\r\n}\r\n/**\r\n * Validates that the string name conforms to the JS IdentifierName specification and if not\r\n * normalizes the name so that it would. This method does not identify or change any keywords\r\n * meaning that if you pass in a known keyword the same value will be returned.\r\n * This is a simplified version\r\n * @param name The name to validate\r\n */\r\nexport function normalizeJsName(name) {\r\n var value = name;\r\n if (value && isString(value)) {\r\n // CamelCase everything after the \"-\" and remove the dash\r\n value = value[_DYN_REPLACE /* @min:%2ereplace */](rCamelCase, function (_all, letter) {\r\n return letter.toUpperCase();\r\n });\r\n value = value[_DYN_REPLACE /* @min:%2ereplace */](rNormalizeInvalid, \"_\");\r\n value = value[_DYN_REPLACE /* @min:%2ereplace */](rLeadingNumeric, function (_all, match) {\r\n return \"_\" + match;\r\n });\r\n }\r\n return value;\r\n}\r\n/**\r\n * This is a helper function for the equivalent of arForEach(objKeys(target), callbackFn), this is a\r\n * performance optimization to avoid the creation of a new array for large objects\r\n * @param target The target object to find and process the keys\r\n * @param callbackfn The function to call with the details\r\n */\r\nexport function objForEachKey(target, callbackfn) {\r\n if (target) {\r\n for (var prop in target) {\r\n if (ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](target, prop)) {\r\n callbackfn[_DYN_CALL /* @min:%2ecall */](target, prop, target[prop]);\r\n }\r\n }\r\n }\r\n}\r\n/**\r\n * The strEndsWith() method determines whether a string ends with the characters of a specified string, returning true or false as appropriate.\r\n * @param value - The value to check whether it ends with the search value.\r\n * @param search - The characters to be searched for at the end of the value.\r\n * @returns true if the given search value is found at the end of the string, otherwise false.\r\n */\r\nexport function strEndsWith(value, search) {\r\n var result = false;\r\n if (value && search && !(result = value === search)) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n result = _strEndsWith ? value[cStrEndsWith](search) : _strEndsWithPoly(value, search);\r\n }\r\n return result;\r\n}\r\n/**\r\n * The _strEndsWith() method determines whether a string ends with the characters of a specified string, returning true or false as appropriate.\r\n * @param value - The value to check whether it ends with the search value.\r\n * @param search - The characters to be searched for at the end of the value.\r\n * @returns true if the given search value is found at the end of the string, otherwise false.\r\n */\r\nexport function _strEndsWithPoly(value, search) {\r\n var result = false;\r\n var searchLen = search ? search[_DYN_LENGTH /* @min:%2elength */] : 0;\r\n var valLen = value ? value[_DYN_LENGTH /* @min:%2elength */] : 0;\r\n if (searchLen && valLen && valLen >= searchLen && !(result = value === search)) {\r\n var pos = valLen - 1;\r\n for (var lp = searchLen - 1; lp >= 0; lp--) {\r\n if (value[pos] != search[lp]) {\r\n return false;\r\n }\r\n pos--;\r\n }\r\n result = true;\r\n }\r\n return result;\r\n}\r\n/**\r\n * The strStartsWith() method determines whether a string starts with the characters of the specified string, returning true or false as appropriate.\r\n * @param value - The value to check whether it ends with the search value.\r\n * @param checkValue - The characters to be searched for at the start of the value.\r\n * @returns true if the given search value is found at the start of the string, otherwise false.\r\n */\r\nexport function strStartsWith(value, checkValue) {\r\n var result = false;\r\n if (value && checkValue && !(result = value === checkValue)) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n result = _strStartsWith ? value[cStrStartsWith](checkValue) : _strStartsWithPoly(value, checkValue);\r\n }\r\n return result;\r\n}\r\n/**\r\n * The strStartsWith() method determines whether a string starts with the characters of the specified string, returning true or false as appropriate.\r\n * @param value - The value to check whether it ends with the search value.\r\n * @param checkValue - The characters to be searched for at the start of the value.\r\n * @returns true if the given search value is found at the start of the string, otherwise false.\r\n */\r\nexport function _strStartsWithPoly(value, checkValue) {\r\n // Using helper for performance and because string startsWith() is not available on IE\r\n var result = false;\r\n var chkLen = checkValue ? checkValue[_DYN_LENGTH /* @min:%2elength */] : 0;\r\n if (value && chkLen && value[_DYN_LENGTH /* @min:%2elength */] >= chkLen && !(result = value === checkValue)) {\r\n for (var lp = 0; lp < chkLen; lp++) {\r\n if (value[lp] !== checkValue[lp]) {\r\n return false;\r\n }\r\n }\r\n result = true;\r\n }\r\n return result;\r\n}\r\n/**\r\n * A simple wrapper (for minification support) to check if the value contains the search string.\r\n * @param value - The string value to check for the existence of the search value\r\n * @param search - The value search within the value\r\n */\r\nexport function strContains(value, search) {\r\n if (value && search) {\r\n return value[_DYN_INDEX_OF /* @min:%2eindexOf */](search) !== -1;\r\n }\r\n return false;\r\n}\r\n/**\r\n * Check if an object is of type Date\r\n */\r\nexport function isDate(obj) {\r\n return !!(obj && _objToString[_DYN_CALL /* @min:%2ecall */](obj) === \"[object Date]\");\r\n}\r\n/**\r\n * Check if an object is of type Array with optional generic T, the generic type is not validated\r\n * and exists to help with TypeScript validation only.\r\n */\r\nexport var isArray = _isArray || _isArrayPoly;\r\nfunction _isArrayPoly(obj) {\r\n return !!(obj && _objToString[_DYN_CALL /* @min:%2ecall */](obj) === \"[object Array]\");\r\n}\r\n/**\r\n * Check if an object is of type Error\r\n */\r\nexport function isError(obj) {\r\n return !!(obj && _objToString[_DYN_CALL /* @min:%2ecall */](obj) === \"[object Error]\");\r\n}\r\n/**\r\n * Checks if the type of value is a string.\r\n * @param {any} value - Value to be checked.\r\n * @return {boolean} True if the value is a string, false otherwise.\r\n */\r\nexport function isString(value) {\r\n // Changing to inline for performance\r\n return typeof value === \"string\";\r\n}\r\n/**\r\n * Checks if the type of value is a number.\r\n * @param {any} value - Value to be checked.\r\n * @return {boolean} True if the value is a number, false otherwise.\r\n */\r\nexport function isNumber(value) {\r\n // Changing to inline for performance\r\n return typeof value === \"number\";\r\n}\r\n/**\r\n * Checks if the type of value is a boolean.\r\n * @param {any} value - Value to be checked.\r\n * @return {boolean} True if the value is a boolean, false otherwise.\r\n */\r\nexport function isBoolean(value) {\r\n // Changing to inline for performance\r\n return typeof value === \"boolean\";\r\n}\r\n/**\r\n * Checks if the type of value is a Symbol.\r\n * This only returns a boolean as returning value is Symbol will cause issues for older TypeScript consumers\r\n * @param {any} value - Value to be checked.\r\n * @return {boolean} True if the value is a Symbol, false otherwise.\r\n */\r\nexport function isSymbol(value) {\r\n return typeof value === \"symbol\";\r\n}\r\n/**\r\n * Checks if the type of the value is a normal plain object (not a null or data)\r\n * @param value\r\n */\r\nexport function isPlainObject(value) {\r\n var result = false;\r\n if (value && typeof value === \"object\") {\r\n // Inlining _objGetPrototypeOf for performance to avoid an additional function call\r\n var proto = _objGetPrototypeOf ? _objGetPrototypeOf(value) : _getObjProto(value);\r\n if (!proto) {\r\n // No prototype found so this is a plain Object eg. 'Object.create(null)'\r\n result = true;\r\n }\r\n else {\r\n // Objects that have a prototype are plain only if they were created using the Object global (native) function\r\n if (proto[strConstructor] && ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](proto, strConstructor)) {\r\n proto = proto[strConstructor];\r\n }\r\n result = typeof proto === strShimFunction && _fnToString[_DYN_CALL /* @min:%2ecall */](proto) === _objFunctionString;\r\n }\r\n }\r\n return result;\r\n}\r\n/**\r\n * Convert a date to I.S.O. format in IE8\r\n */\r\nexport function toISOString(date) {\r\n if (date) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n return _dataToISOString ? date[strToISOString]() : _toISOStringPoly(date);\r\n }\r\n}\r\n/**\r\n * Convert a date to I.S.O. format in IE8\r\n */\r\nexport function _toISOStringPoly(date) {\r\n if (date && date.getUTCFullYear) {\r\n var pad = function (num) {\r\n var r = String(num);\r\n if (r[_DYN_LENGTH /* @min:%2elength */] === 1) {\r\n r = \"0\" + r;\r\n }\r\n return r;\r\n };\r\n return date.getUTCFullYear()\r\n + \"-\" + pad(date.getUTCMonth() + 1)\r\n + \"-\" + pad(date.getUTCDate())\r\n + \"T\" + pad(date.getUTCHours())\r\n + \":\" + pad(date.getUTCMinutes())\r\n + \":\" + pad(date.getUTCSeconds())\r\n + \".\" + String((date.getUTCMilliseconds() / 1000).toFixed(3)).slice(2, 5)\r\n + \"Z\";\r\n }\r\n}\r\n/**\r\n * Performs the specified action for each element in an array. This helper exists to avoid adding a polyfil for older browsers\r\n * that do not define Array.prototype.xxxx (eg. ES3 only, IE8) just in case any page checks for presence/absence of the prototype\r\n * implementation. Note: For consistency this will not use the Array.prototype.xxxx implementation if it exists as this would\r\n * cause a testing requirement to test with and without the implementations\r\n * @param callbackfn A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array. It can return -1 to break out of the loop\r\n * @param thisArg [Optional] An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.\r\n */\r\nexport function arrForEach(arr, callbackfn, thisArg) {\r\n var len = arr[_DYN_LENGTH /* @min:%2elength */];\r\n try {\r\n for (var idx = 0; idx < len; idx++) {\r\n if (idx in arr) {\r\n if (callbackfn[_DYN_CALL /* @min:%2ecall */](thisArg || arr, arr[idx], idx, arr) === -1) {\r\n break;\r\n }\r\n }\r\n }\r\n }\r\n catch (e) {\r\n // This can happen with some native browser objects, but should not happen for the type we are checking for\r\n }\r\n}\r\n/**\r\n * Returns the index of the first occurrence of a value in an array. This helper exists to avoid adding a polyfil for older browsers\r\n * that do not define Array.prototype.xxxx (eg. ES3 only, IE8) just in case any page checks for presence/absence of the prototype\r\n * implementation. Note: For consistency this will not use the Array.prototype.xxxx implementation if it exists as this would\r\n * cause a testing requirement to test with and without the implementations\r\n * @param searchElement The value to locate in the array.\r\n * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.\r\n */\r\nexport function arrIndexOf(arr, searchElement, fromIndex) {\r\n if (arr) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n if (arr[strIndexOf]) {\r\n return arr[strIndexOf](searchElement, fromIndex);\r\n }\r\n var len = arr[_DYN_LENGTH /* @min:%2elength */];\r\n var from = fromIndex || 0;\r\n try {\r\n for (var lp = Math.max(from >= 0 ? from : len - Math.abs(from), 0); lp < len; lp++) {\r\n if (lp in arr && arr[lp] === searchElement) {\r\n return lp;\r\n }\r\n }\r\n }\r\n catch (e) {\r\n // This can happen with some native browser objects, but should not happen for the type we are checking for\r\n }\r\n }\r\n return -1;\r\n}\r\n/**\r\n * Calls a defined callback function on each element of an array, and returns an array that contains the results. This helper exists\r\n * to avoid adding a polyfil for older browsers that do not define Array.prototype.xxxx (eg. ES3 only, IE8) just in case any page\r\n * checks for presence/absence of the prototype implementation. Note: For consistency this will not use the Array.prototype.xxxx\r\n * implementation if it exists as this would cause a testing requirement to test with and without the implementations\r\n * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.\r\n * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.\r\n */\r\nexport function arrMap(arr, callbackfn, thisArg) {\r\n var results;\r\n if (arr) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n if (arr[strMap]) {\r\n return arr[strMap](callbackfn, thisArg);\r\n }\r\n var len = arr[_DYN_LENGTH /* @min:%2elength */];\r\n var _this = thisArg || arr;\r\n results = new Array(len);\r\n try {\r\n for (var lp = 0; lp < len; lp++) {\r\n if (lp in arr) {\r\n results[lp] = callbackfn[_DYN_CALL /* @min:%2ecall */](_this, arr[lp], arr);\r\n }\r\n }\r\n }\r\n catch (e) {\r\n // This can happen with some native browser objects, but should not happen for the type we are checking for\r\n }\r\n }\r\n return results;\r\n}\r\n/**\r\n * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is\r\n * provided as an argument in the next call to the callback function. This helper exists to avoid adding a polyfil for older browsers that do not define\r\n * Array.prototype.xxxx (eg. ES3 only, IE8) just in case any page checks for presence/absence of the prototype implementation. Note: For consistency\r\n * this will not use the Array.prototype.xxxx implementation if it exists as this would cause a testing requirement to test with and without the implementations\r\n * @param callbackfn A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.\r\n * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.\r\n */\r\nexport function arrReduce(arr, callbackfn, initialValue) {\r\n var value;\r\n if (arr) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n if (arr[strReduce]) {\r\n return arr[strReduce](callbackfn, initialValue);\r\n }\r\n var len = arr[_DYN_LENGTH /* @min:%2elength */];\r\n var lp = 0;\r\n // Specifically checking the number of passed arguments as the value could be anything\r\n if (arguments[_DYN_LENGTH /* @min:%2elength */] >= 3) {\r\n value = arguments[2];\r\n }\r\n else {\r\n while (lp < len && !(lp in arr)) {\r\n lp++;\r\n }\r\n value = arr[lp++];\r\n }\r\n while (lp < len) {\r\n if (lp in arr) {\r\n value = callbackfn(value, arr[lp], lp, arr);\r\n }\r\n lp++;\r\n }\r\n }\r\n return value;\r\n}\r\n/**\r\n * helper method to trim strings (IE8 does not implement String.prototype.trim)\r\n */\r\nexport function strTrim(str) {\r\n if (str) {\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n str = (_strTrim && str[cStrTrim]) ? str[cStrTrim]() : (str[_DYN_REPLACE /* @min:%2ereplace */] ? str[_DYN_REPLACE /* @min:%2ereplace */](/^\\s+|(?=\\s)\\s+$/g, STR_EMPTY) : str);\r\n }\r\n return str;\r\n}\r\nvar _objKeysHasDontEnumBug = !({ toString: null }).propertyIsEnumerable(\"toString\");\r\nvar _objKeysDontEnums = [\r\n \"toString\",\r\n \"toLocaleString\",\r\n \"valueOf\",\r\n \"hasOwnProperty\",\r\n \"isPrototypeOf\",\r\n \"propertyIsEnumerable\",\r\n \"constructor\"\r\n];\r\n/**\r\n * Returns the names of the enumerable string properties and methods of an object. This helper exists to avoid adding a polyfil for older browsers\r\n * that do not define Object.keys eg. ES3 only, IE8 just in case any page checks for presence/absence of the prototype implementation.\r\n * Note: For consistency this will not use the Object.keys implementation if it exists as this would cause a testing requirement to test with and without the implementations\r\n * @param obj Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.\r\n */\r\nexport function objKeys(obj) {\r\n var objType = typeof obj;\r\n if (objType !== strShimFunction && (objType !== strShimObject || obj === null)) {\r\n throwTypeError(\"objKeys called on non-object\");\r\n }\r\n // For Performance try and use the native instance, using string lookup of the function to easily pass the ES3 build checks and minification\r\n if (!_objKeysHasDontEnumBug && _objKeys) {\r\n return _objKeys(obj);\r\n }\r\n var result = [];\r\n for (var prop in obj) {\r\n if (obj && ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](obj, prop)) {\r\n result[_DYN_PUSH /* @min:%2epush */](prop);\r\n }\r\n }\r\n if (_objKeysHasDontEnumBug) {\r\n var dontEnumsLength = _objKeysDontEnums[_DYN_LENGTH /* @min:%2elength */];\r\n for (var lp = 0; lp < dontEnumsLength; lp++) {\r\n if (obj && ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](obj, _objKeysDontEnums[lp])) {\r\n result[_DYN_PUSH /* @min:%2epush */](_objKeysDontEnums[lp]);\r\n }\r\n }\r\n }\r\n return result;\r\n}\r\n/**\r\n * Try to define get/set object property accessors for the target object/prototype, this will provide compatibility with\r\n * existing API definition when run within an ES5+ container that supports accessors but still enable the code to be loaded\r\n * and executed in an ES3 container, providing basic IE8 compatibility.\r\n * @param target The object on which to define the property.\r\n * @param prop The name of the property to be defined or modified.\r\n * @param getProp The getter function to wire against the getter.\r\n * @param setProp The setter function to wire against the setter.\r\n * @returns True if it was able to create the accessors otherwise false\r\n */\r\nexport function objDefineAccessors(target, prop, getProp, setProp) {\r\n if (_objDefineProperty) {\r\n try {\r\n var descriptor = {\r\n enumerable: true,\r\n configurable: true\r\n };\r\n if (getProp) {\r\n descriptor.get = getProp;\r\n }\r\n if (setProp) {\r\n descriptor.set = setProp;\r\n }\r\n _objDefineProperty(target, prop, descriptor);\r\n return true;\r\n }\r\n catch (e) {\r\n // IE8 Defines a defineProperty on Object but it's only supported for DOM elements so it will throw\r\n // We will just ignore this here.\r\n }\r\n }\r\n return false;\r\n}\r\nfunction _doNothing(value) {\r\n return value;\r\n}\r\nexport function deepFreeze(obj) {\r\n if (_objFreeze) {\r\n objForEachKey(obj, function (name, value) {\r\n if (isArray(value) || isObject(value)) {\r\n _objFreeze(value);\r\n }\r\n });\r\n }\r\n return objFreeze(obj);\r\n}\r\nexport var objFreeze = _objFreeze || _doNothing;\r\nexport var objSeal = _objSeal || _doNothing;\r\n/**\r\n * Return the current time via the Date now() function (if available) and falls back to (new Date()).getTime() if now() is unavailable (IE8 or less)\r\n * https://caniuse.com/#search=Date.now\r\n */\r\nexport function dateNow() {\r\n var dt = Date;\r\n return dt.now ? dt.now() : new dt().getTime();\r\n}\r\n/**\r\n * Returns the name of object if it's an Error. Otherwise, returns empty string.\r\n */\r\nexport function getExceptionName(object) {\r\n if (isError(object)) {\r\n return object[_DYN_NAME /* @min:%2ename */];\r\n }\r\n return STR_EMPTY;\r\n}\r\n/**\r\n * Sets the provided value on the target instance using the field name when the provided chk function returns true, the chk\r\n * function will only be called if the new value is no equal to the original value.\r\n * @param target - The target object\r\n * @param field - The key of the target\r\n * @param value - The value to set\r\n * @param valChk - [Optional] Callback to check the value that if supplied will be called check if the new value can be set\r\n * @param srcChk - [Optional] Callback to check to original value that if supplied will be called if the new value should be set (if allowed)\r\n * @returns The existing or new value, depending what was set\r\n */\r\nexport function setValue(target, field, value, valChk, srcChk) {\r\n var theValue = value;\r\n if (target) {\r\n theValue = target[field];\r\n if (theValue !== value && (!srcChk || srcChk(theValue)) && (!valChk || valChk(value))) {\r\n theValue = value;\r\n target[field] = theValue;\r\n }\r\n }\r\n return theValue;\r\n}\r\n/**\r\n * Returns the current value from the target object if not null or undefined otherwise sets the new value and returns it\r\n * @param target - The target object to return or set the default value\r\n * @param field - The key for the field to set on the target\r\n * @param defValue - [Optional] The value to set if not already present, when not provided a empty object will be added\r\n */\r\nexport function getSetValue(target, field, defValue) {\r\n var theValue;\r\n if (target) {\r\n theValue = target[field];\r\n if (!theValue && isNullOrUndefined(theValue)) {\r\n // Supports having the default as null\r\n theValue = !isUndefined(defValue) ? defValue : {};\r\n target[field] = theValue;\r\n }\r\n }\r\n else {\r\n // Expanded for performance so we only check defValue if required\r\n theValue = !isUndefined(defValue) ? defValue : {};\r\n }\r\n return theValue;\r\n}\r\n/**\r\n * Get the mapped config value, if null or undefined any supplied defaultValue will be returned.\r\n * @param field - The name of the field as the named enum value (number) or the string name.\r\n * @param defaultValue - The default value to return if the config field is not present, null or undefined.\r\n */\r\nexport function getCfgValue(theValue, defaultValue) {\r\n return !isNullOrUndefined(theValue) ? theValue : defaultValue;\r\n}\r\nexport function isNotTruthy(value) {\r\n return !value;\r\n}\r\nexport function isTruthy(value) {\r\n return !!value;\r\n}\r\nexport function throwError(message) {\r\n throw new Error(message);\r\n}\r\nfunction _createProxyFunction(source, funcName) {\r\n var srcFunc = null;\r\n var src = null;\r\n if (isFunction(source)) {\r\n srcFunc = source;\r\n }\r\n else {\r\n src = source;\r\n }\r\n return function () {\r\n // Capture the original arguments passed to the method\r\n var originalArguments = arguments;\r\n if (srcFunc) {\r\n src = srcFunc();\r\n }\r\n if (src) {\r\n return src[funcName][_DYN_APPLY /* @min:%2eapply */](src, originalArguments);\r\n }\r\n };\r\n}\r\n/**\r\n * Effectively assigns all enumerable properties (not just own properties) and functions (including inherited prototype) from\r\n * the source object to the target, it attempts to use proxy getters / setters (if possible) and proxy functions to avoid potential\r\n * implementation issues by assigning prototype functions as instance ones\r\n *\r\n * This method is the primary method used to \"update\" the snippet proxy with the ultimate implementations.\r\n *\r\n * Special ES3 Notes:\r\n * Updates (setting) of direct property values on the target or indirectly on the source object WILL NOT WORK PROPERLY, updates to the\r\n * properties of \"referenced\" object will work (target.context.newValue = 10 => will be reflected in the source.context as it's the\r\n * same object). ES3 Failures: assigning target.myProp = 3 -> Won't change source.myProp = 3, likewise the reverse would also fail.\r\n * @param target - The target object to be assigned with the source properties and functions\r\n * @param source - The source object which will be assigned / called by setting / calling the targets proxies\r\n * @param chkSet - An optional callback to determine whether a specific property/function should be proxied\r\n */\r\nexport function proxyAssign(target, source, chkSet) {\r\n if (target && source && isObject(target) && isObject(source)) {\r\n var _loop_1 = function (field) {\r\n if (isString(field)) {\r\n var value = source[field];\r\n if (isFunction(value)) {\r\n if (!chkSet || chkSet(field, true, source, target)) {\r\n // Create a proxy function rather than just copying the (possible) prototype to the new object as an instance function\r\n target[field] = _createProxyFunction(source, field);\r\n }\r\n }\r\n else if (!chkSet || chkSet(field, false, source, target)) {\r\n if (hasOwnProperty(target, field)) {\r\n // Remove any previous instance property\r\n delete target[field];\r\n }\r\n if (!objDefineAccessors(target, field, function () {\r\n return source[field];\r\n }, function (theValue) {\r\n source[field] = theValue;\r\n })) {\r\n // Unable to create an accessor, so just assign the values as a fallback\r\n // -- this will (mostly) work for objects\r\n // -- but will fail for accessing primitives (if the source changes it) and all types of \"setters\" as the source won't be modified\r\n target[field] = value;\r\n }\r\n }\r\n }\r\n };\r\n // effectively apply/proxy full source to the target instance\r\n for (var field in source) {\r\n _loop_1(field);\r\n }\r\n }\r\n return target;\r\n}\r\n/**\r\n * Creates a proxy function on the target which internally will call the source version with all arguments passed to the target method.\r\n *\r\n * @param target - The target object to be assigned with the source properties and functions\r\n * @param name - The function name that will be added on the target\r\n * @param source - The source object which will be assigned / called by setting / calling the targets proxies\r\n * @param theFunc - The function name on the source that will be proxied on the target\r\n * @param overwriteTarget - If `false` this will not replace any pre-existing name otherwise (the default) it will overwrite any existing name\r\n */\r\nexport function proxyFunctionAs(target, name, source, theFunc, overwriteTarget) {\r\n if (target && name && source) {\r\n if (overwriteTarget !== false || isUndefined(target[name])) {\r\n target[name] = _createProxyFunction(source, theFunc);\r\n }\r\n }\r\n}\r\n/**\r\n * Creates proxy functions on the target which internally will call the source version with all arguments passed to the target method.\r\n *\r\n * @param target - The target object to be assigned with the source properties and functions\r\n * @param source - The source object which will be assigned / called by setting / calling the targets proxies\r\n * @param functionsToProxy - An array of function names that will be proxied on the target\r\n * @param overwriteTarget - If false this will not replace any pre-existing name otherwise (the default) it will overwrite any existing name\r\n */\r\nexport function proxyFunctions(target, source, functionsToProxy, overwriteTarget) {\r\n if (target && source && isObject(target) && isArray(functionsToProxy)) {\r\n arrForEach(functionsToProxy, function (theFuncName) {\r\n if (isString(theFuncName)) {\r\n proxyFunctionAs(target, theFuncName, source, theFuncName, overwriteTarget);\r\n }\r\n });\r\n }\r\n return target;\r\n}\r\n/**\r\n * Simpler helper to create a dynamic class that implements the interface and populates the values with the defaults.\r\n * Only instance properties (hasOwnProperty) values are copied from the defaults to the new instance\r\n * @param defaults Simple helper\r\n */\r\nexport function createClassFromInterface(defaults) {\r\n return /** @class */ (function () {\r\n function class_1() {\r\n var _this_1 = this;\r\n if (defaults) {\r\n objForEachKey(defaults, function (field, value) {\r\n _this_1[field] = value;\r\n });\r\n }\r\n }\r\n return class_1;\r\n }());\r\n}\r\n/**\r\n * A helper function to assist with JIT performance for objects that have properties added / removed dynamically\r\n * this is primarily for chromium based browsers and has limited effects on Firefox and none of IE. Only call this\r\n * function after you have finished \"updating\" the object, calling this within loops reduces or defeats the benefits.\r\n * This helps when iterating using for..in, objKeys() and objForEach()\r\n * @param theObject - The object to be optimized if possible\r\n */\r\nexport function optimizeObject(theObject) {\r\n // V8 Optimization to cause the JIT compiler to create a new optimized object for looking up the own properties\r\n // primarily for object with <= 19 properties for >= 20 the effect is reduced or non-existent\r\n if (theObject && ObjAssign) {\r\n theObject = ObjClass(ObjAssign({}, theObject));\r\n }\r\n return theObject;\r\n}\r\nexport function objExtend(obj1, obj2, obj3, obj4, obj5, obj6) {\r\n // Variables\r\n var theArgs = arguments;\r\n var extended = theArgs[0] || {};\r\n var argLen = theArgs[_DYN_LENGTH /* @min:%2elength */];\r\n var deep = false;\r\n var idx = 1;\r\n // Check for \"Deep\" flag\r\n if (argLen > 0 && isBoolean(extended)) {\r\n deep = extended;\r\n extended = theArgs[idx] || {};\r\n idx++;\r\n }\r\n // Handle case when target is a string or something (possible in deep copy)\r\n if (!isObject(extended)) {\r\n extended = {};\r\n }\r\n // Loop through each remaining object and conduct a merge\r\n for (; idx < argLen; idx++) {\r\n var arg = theArgs[idx];\r\n var isArgArray = isArray(arg);\r\n var isArgObj = isObject(arg);\r\n for (var prop in arg) {\r\n var propOk = (isArgArray && (prop in arg)) || (isArgObj && (ObjHasOwnProperty[_DYN_CALL /* @min:%2ecall */](arg, prop)));\r\n if (!propOk) {\r\n continue;\r\n }\r\n var newValue = arg[prop];\r\n var isNewArray = void 0;\r\n // If deep merge and property is an object, merge properties\r\n if (deep && newValue && ((isNewArray = isArray(newValue)) || isPlainObject(newValue))) {\r\n // Grab the current value of the extended object\r\n var clone = extended[prop];\r\n if (isNewArray) {\r\n if (!isArray(clone)) {\r\n // We can't \"merge\" an array with a non-array so overwrite the original\r\n clone = [];\r\n }\r\n }\r\n else if (!isPlainObject(clone)) {\r\n // We can't \"merge\" an object with a non-object\r\n clone = {};\r\n }\r\n // Never move the original objects always clone them\r\n newValue = objExtend(deep, clone, newValue);\r\n }\r\n // Assign the new (or previous) value (unless undefined)\r\n if (newValue !== undefined) {\r\n extended[prop] = newValue;\r\n }\r\n }\r\n }\r\n return extended;\r\n}\r\n//# sourceMappingURL=HelperFuncs.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n\"use strict\";\r\nimport { getGlobal, strShimObject, strShimPrototype, strShimUndefined } from \"@microsoft/applicationinsights-shims\";\r\nimport { _DYN_CALL, _DYN_INDEX_OF, _DYN_LENGTH, _DYN_NAME, _DYN_SPLIT, _DYN_TO_LOWER_CASE, _DYN_USER_AGENT } from \"../__DynamicConstants\";\r\nimport { isString, isUndefined, strContains } from \"./HelperFuncs\";\r\nimport { STR_EMPTY } from \"./InternalConstants\";\r\n/**\r\n * This file exists to hold environment utilities that are required to check and\r\n * validate the current operating environment. Unless otherwise required, please\r\n * only use defined methods (functions) in this class so that users of these\r\n * functions/properties only need to include those that are used within their own modules.\r\n */\r\nvar strWindow = \"window\";\r\nvar strDocument = \"document\";\r\nvar strDocumentMode = \"documentMode\";\r\nvar strNavigator = \"navigator\";\r\nvar strHistory = \"history\";\r\nvar strLocation = \"location\";\r\nvar strConsole = \"console\";\r\nvar strPerformance = \"performance\";\r\nvar strJSON = \"JSON\";\r\nvar strCrypto = \"crypto\";\r\nvar strMsCrypto = \"msCrypto\";\r\nvar strReactNative = \"ReactNative\";\r\nvar strMsie = \"msie\";\r\nvar strTrident = \"trident/\";\r\nvar strXMLHttpRequest = \"XMLHttpRequest\";\r\nvar _isTrident = null;\r\nvar _navUserAgentCheck = null;\r\nvar _enableMocks = false;\r\nvar _useXDomainRequest = null;\r\nvar _beaconsSupported = null;\r\nfunction _hasProperty(theClass, property) {\r\n var supported = false;\r\n if (theClass) {\r\n try {\r\n supported = property in theClass;\r\n if (!supported) {\r\n var proto = theClass[strShimPrototype];\r\n if (proto) {\r\n supported = property in proto;\r\n }\r\n }\r\n }\r\n catch (e) {\r\n // Do Nothing\r\n }\r\n if (!supported) {\r\n try {\r\n var tmp = new theClass();\r\n supported = !isUndefined(tmp[property]);\r\n }\r\n catch (e) {\r\n // Do Nothing\r\n }\r\n }\r\n }\r\n return supported;\r\n}\r\n/**\r\n * Enable the lookup of test mock objects if requested\r\n * @param enabled\r\n */\r\nexport function setEnableEnvMocks(enabled) {\r\n _enableMocks = enabled;\r\n}\r\n/**\r\n * Return the named global object if available, will return null if the object is not available.\r\n * @param name The globally named object\r\n */\r\nexport function getGlobalInst(name) {\r\n var gbl = getGlobal();\r\n if (gbl && gbl[name]) {\r\n return gbl[name];\r\n }\r\n // Test workaround, for environments where .window (when global == window) doesn't return the base window\r\n if (name === strWindow && hasWindow()) {\r\n // tslint:disable-next-line: no-angle-bracket-type-assertion\r\n return window;\r\n }\r\n return null;\r\n}\r\n/**\r\n * Checks if window object is available, this is required as we support the API running without a\r\n * window /document (eg. Node server, electron webworkers) and if we attempt to assign a window\r\n * object to a local variable or pass as an argument an \"Uncaught ReferenceError: window is not defined\"\r\n * exception will be thrown.\r\n * Defined as a function to support lazy / late binding environments.\r\n */\r\nexport function hasWindow() {\r\n return Boolean(typeof window === strShimObject && window);\r\n}\r\n/**\r\n * Returns the global window object if it is present otherwise null.\r\n * This helper is used to access the window object without causing an exception\r\n * \"Uncaught ReferenceError: window is not defined\"\r\n */\r\nexport function getWindow() {\r\n if (hasWindow()) {\r\n return window;\r\n }\r\n // Return the global instance or null\r\n return getGlobalInst(strWindow);\r\n}\r\n/**\r\n * Checks if document object is available, this is required as we support the API running without a\r\n * window /document (eg. Node server, electron webworkers) and if we attempt to assign a document\r\n * object to a local variable or pass as an argument an \"Uncaught ReferenceError: document is not defined\"\r\n * exception will be thrown.\r\n * Defined as a function to support lazy / late binding environments.\r\n */\r\nexport function hasDocument() {\r\n return Boolean(typeof document === strShimObject && document);\r\n}\r\n/**\r\n * Returns the global document object if it is present otherwise null.\r\n * This helper is used to access the document object without causing an exception\r\n * \"Uncaught ReferenceError: document is not defined\"\r\n */\r\nexport function getDocument() {\r\n if (hasDocument()) {\r\n return document;\r\n }\r\n return getGlobalInst(strDocument);\r\n}\r\n/**\r\n * Checks if navigator object is available, this is required as we support the API running without a\r\n * window /document (eg. Node server, electron webworkers) and if we attempt to assign a navigator\r\n * object to a local variable or pass as an argument an \"Uncaught ReferenceError: navigator is not defined\"\r\n * exception will be thrown.\r\n * Defined as a function to support lazy / late binding environments.\r\n */\r\nexport function hasNavigator() {\r\n return Boolean(typeof navigator === strShimObject && navigator);\r\n}\r\n/**\r\n * Returns the global navigator object if it is present otherwise null.\r\n * This helper is used to access the navigator object without causing an exception\r\n * \"Uncaught ReferenceError: navigator is not defined\"\r\n */\r\nexport function getNavigator() {\r\n if (hasNavigator()) {\r\n return navigator;\r\n }\r\n return getGlobalInst(strNavigator);\r\n}\r\n/**\r\n * Checks if history object is available, this is required as we support the API running without a\r\n * window /document (eg. Node server, electron webworkers) and if we attempt to assign a history\r\n * object to a local variable or pass as an argument an \"Uncaught ReferenceError: history is not defined\"\r\n * exception will be thrown.\r\n * Defined as a function to support lazy / late binding environments.\r\n */\r\nexport function hasHistory() {\r\n return Boolean(typeof history === strShimObject && history);\r\n}\r\n/**\r\n * Returns the global history object if it is present otherwise null.\r\n * This helper is used to access the history object without causing an exception\r\n * \"Uncaught ReferenceError: history is not defined\"\r\n */\r\nexport function getHistory() {\r\n if (hasHistory()) {\r\n return history;\r\n }\r\n return getGlobalInst(strHistory);\r\n}\r\n/**\r\n * Returns the global location object if it is present otherwise null.\r\n * This helper is used to access the location object without causing an exception\r\n * \"Uncaught ReferenceError: location is not defined\"\r\n */\r\nexport function getLocation(checkForMock) {\r\n if (checkForMock && _enableMocks) {\r\n var mockLocation = getGlobalInst(\"__mockLocation\");\r\n if (mockLocation) {\r\n return mockLocation;\r\n }\r\n }\r\n if (typeof location === strShimObject && location) {\r\n return location;\r\n }\r\n return getGlobalInst(strLocation);\r\n}\r\n/**\r\n * Returns the global console object\r\n */\r\nexport function getConsole() {\r\n if (typeof console !== strShimUndefined) {\r\n return console;\r\n }\r\n return getGlobalInst(strConsole);\r\n}\r\n/**\r\n * Returns the performance object if it is present otherwise null.\r\n * This helper is used to access the performance object from the current\r\n * global instance which could be window or globalThis for a web worker\r\n */\r\nexport function getPerformance() {\r\n return getGlobalInst(strPerformance);\r\n}\r\n/**\r\n * Checks if JSON object is available, this is required as we support the API running without a\r\n * window /document (eg. Node server, electron webworkers) and if we attempt to assign a history\r\n * object to a local variable or pass as an argument an \"Uncaught ReferenceError: JSON is not defined\"\r\n * exception will be thrown.\r\n * Defined as a function to support lazy / late binding environments.\r\n */\r\nexport function hasJSON() {\r\n return Boolean((typeof JSON === strShimObject && JSON) || getGlobalInst(strJSON) !== null);\r\n}\r\n/**\r\n * Returns the global JSON object if it is present otherwise null.\r\n * This helper is used to access the JSON object without causing an exception\r\n * \"Uncaught ReferenceError: JSON is not defined\"\r\n */\r\nexport function getJSON() {\r\n if (hasJSON()) {\r\n return JSON || getGlobalInst(strJSON);\r\n }\r\n return null;\r\n}\r\n/**\r\n * Returns the crypto object if it is present otherwise null.\r\n * This helper is used to access the crypto object from the current\r\n * global instance which could be window or globalThis for a web worker\r\n */\r\nexport function getCrypto() {\r\n return getGlobalInst(strCrypto);\r\n}\r\n/**\r\n * Returns the crypto object if it is present otherwise null.\r\n * This helper is used to access the crypto object from the current\r\n * global instance which could be window or globalThis for a web worker\r\n */\r\nexport function getMsCrypto() {\r\n return getGlobalInst(strMsCrypto);\r\n}\r\n/**\r\n * Returns whether the environment is reporting that we are running in a React Native Environment\r\n */\r\nexport function isReactNative() {\r\n // If running in React Native, navigator.product will be populated\r\n var nav = getNavigator();\r\n if (nav && nav.product) {\r\n return nav.product === strReactNative;\r\n }\r\n return false;\r\n}\r\n/**\r\n * Identifies whether the current environment appears to be IE\r\n */\r\nexport function isIE() {\r\n var nav = getNavigator();\r\n if (nav && (nav[_DYN_USER_AGENT /* @min:%2euserAgent */] !== _navUserAgentCheck || _isTrident === null)) {\r\n // Added to support test mocking of the user agent\r\n _navUserAgentCheck = nav[_DYN_USER_AGENT /* @min:%2euserAgent */];\r\n var userAgent = (_navUserAgentCheck || STR_EMPTY)[_DYN_TO_LOWER_CASE /* @min:%2etoLowerCase */]();\r\n _isTrident = (strContains(userAgent, strMsie) || strContains(userAgent, strTrident));\r\n }\r\n return _isTrident;\r\n}\r\n/**\r\n * Gets IE version returning the document emulation mode if we are running on IE, or null otherwise\r\n */\r\nexport function getIEVersion(userAgentStr) {\r\n if (userAgentStr === void 0) { userAgentStr = null; }\r\n if (!userAgentStr) {\r\n var navigator_1 = getNavigator() || {};\r\n userAgentStr = navigator_1 ? (navigator_1[_DYN_USER_AGENT /* @min:%2euserAgent */] || STR_EMPTY)[_DYN_TO_LOWER_CASE /* @min:%2etoLowerCase */]() : STR_EMPTY;\r\n }\r\n var ua = (userAgentStr || STR_EMPTY)[_DYN_TO_LOWER_CASE /* @min:%2etoLowerCase */]();\r\n // Also check for documentMode in case X-UA-Compatible meta tag was included in HTML.\r\n if (strContains(ua, strMsie)) {\r\n var doc = getDocument() || {};\r\n return Math.max(parseInt(ua[_DYN_SPLIT /* @min:%2esplit */](strMsie)[1]), (doc[strDocumentMode] || 0));\r\n }\r\n else if (strContains(ua, strTrident)) {\r\n var tridentVer = parseInt(ua[_DYN_SPLIT /* @min:%2esplit */](strTrident)[1]);\r\n if (tridentVer) {\r\n return tridentVer + 4;\r\n }\r\n }\r\n return null;\r\n}\r\n/**\r\n * Returns string representation of an object suitable for diagnostics logging.\r\n */\r\nexport function dumpObj(object) {\r\n var objectTypeDump = Object[strShimPrototype].toString[_DYN_CALL /* @min:%2ecall */](object);\r\n var propertyValueDump = STR_EMPTY;\r\n if (objectTypeDump === \"[object Error]\") {\r\n propertyValueDump = \"{ stack: '\" + object.stack + \"', message: '\" + object.message + \"', name: '\" + object[_DYN_NAME /* @min:%2ename */] + \"'\";\r\n }\r\n else if (hasJSON()) {\r\n propertyValueDump = getJSON().stringify(object);\r\n }\r\n return objectTypeDump + propertyValueDump;\r\n}\r\nexport function isSafari(userAgentStr) {\r\n if (!userAgentStr || !isString(userAgentStr)) {\r\n var navigator_2 = getNavigator() || {};\r\n userAgentStr = navigator_2 ? (navigator_2[_DYN_USER_AGENT /* @min:%2euserAgent */] || STR_EMPTY)[_DYN_TO_LOWER_CASE /* @min:%2etoLowerCase */]() : STR_EMPTY;\r\n }\r\n var ua = (userAgentStr || STR_EMPTY)[_DYN_TO_LOWER_CASE /* @min:%2etoLowerCase */]();\r\n return (ua[_DYN_INDEX_OF /* @min:%2eindexOf */](\"safari\") >= 0);\r\n}\r\n/**\r\n * Checks if HTML5 Beacons are supported in the current environment.\r\n * @returns True if supported, false otherwise.\r\n */\r\nexport function isBeaconsSupported() {\r\n if (_beaconsSupported === null) {\r\n _beaconsSupported = hasNavigator() && Boolean(getNavigator().sendBeacon);\r\n }\r\n return _beaconsSupported;\r\n}\r\n/**\r\n * Checks if the Fetch API is supported in the current environment.\r\n * @param withKeepAlive - [Optional] If True, check if fetch is available and it supports the keepalive feature, otherwise only check if fetch is supported\r\n * @returns True if supported, otherwise false\r\n */\r\nexport function isFetchSupported(withKeepAlive) {\r\n var isSupported = false;\r\n try {\r\n isSupported = !!getGlobalInst(\"fetch\");\r\n var request = getGlobalInst(\"Request\");\r\n if (isSupported && withKeepAlive && request) {\r\n isSupported = _hasProperty(request, \"keepalive\");\r\n }\r\n }\r\n catch (e) {\r\n // Just Swallow any failure during availability checks\r\n }\r\n return isSupported;\r\n}\r\nexport function useXDomainRequest() {\r\n if (_useXDomainRequest === null) {\r\n _useXDomainRequest = (typeof XDomainRequest !== strShimUndefined);\r\n if (_useXDomainRequest && isXhrSupported()) {\r\n _useXDomainRequest = _useXDomainRequest && !_hasProperty(getGlobalInst(strXMLHttpRequest), \"withCredentials\");\r\n }\r\n }\r\n return _useXDomainRequest;\r\n}\r\n/**\r\n * Checks if XMLHttpRequest is supported\r\n * @returns True if supported, otherwise false\r\n */\r\nexport function isXhrSupported() {\r\n var isSupported = false;\r\n try {\r\n var xmlHttpRequest = getGlobalInst(strXMLHttpRequest);\r\n isSupported = !!xmlHttpRequest;\r\n }\r\n catch (e) {\r\n // Just Swallow any failure during availability checks\r\n }\r\n return isSupported;\r\n}\r\nfunction _getNamedValue(values, name) {\r\n if (values) {\r\n for (var i = 0; i < values[_DYN_LENGTH /* @min:%2elength */]; i++) {\r\n var value = values[i];\r\n if (value[_DYN_NAME /* @min:%2ename */]) {\r\n if (value[_DYN_NAME /* @min:%2ename */] === name) {\r\n return value;\r\n }\r\n }\r\n }\r\n }\r\n return {};\r\n}\r\n/**\r\n * Helper function to fetch the named meta-tag from the page.\r\n * @param name\r\n */\r\nexport function findMetaTag(name) {\r\n var doc = getDocument();\r\n if (doc && name) {\r\n // Look for a meta-tag\r\n return _getNamedValue(doc.querySelectorAll(\"meta\"), name).content;\r\n }\r\n return null;\r\n}\r\n/**\r\n * Helper function to fetch the named server timing value from the page response (first navigation event).\r\n * @param name\r\n */\r\nexport function findNamedServerTiming(name) {\r\n var value;\r\n var perf = getPerformance();\r\n if (perf) {\r\n // Try looking for a server-timing header\r\n var navPerf = perf.getEntriesByType(\"navigation\") || [];\r\n value = _getNamedValue((navPerf[_DYN_LENGTH /* @min:%2elength */] > 0 ? navPerf[0] : {}).serverTiming, name).description;\r\n }\r\n return value;\r\n}\r\n//# sourceMappingURL=EnvUtils.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport { _DYN_APPLY, _DYN_LENGTH } from \"../__DynamicConstants\";\r\nimport { getGlobalInst } from \"./EnvUtils\";\r\nvar listenerFuncs = [\"eventsSent\", \"eventsDiscarded\", \"eventsSendRequest\", \"perfEvent\"];\r\nvar _aiNamespace = null;\r\nvar _debugListener;\r\nfunction _listenerProxyFunc(name, config) {\r\n return function () {\r\n var args = arguments;\r\n var dbgExt = getDebugExt(config);\r\n if (dbgExt) {\r\n var listener = dbgExt.listener;\r\n if (listener && listener[name]) {\r\n listener[name][_DYN_APPLY /* @min:%2eapply */](listener, args);\r\n }\r\n }\r\n };\r\n}\r\nfunction _getExtensionNamespace() {\r\n // Cache the lookup of the global namespace object\r\n var target = getGlobalInst(\"Microsoft\");\r\n if (target) {\r\n _aiNamespace = target[\"ApplicationInsights\"];\r\n }\r\n return _aiNamespace;\r\n}\r\nexport function getDebugExt(config) {\r\n var ns = _aiNamespace;\r\n if (!ns && config.disableDbgExt !== true) {\r\n ns = _aiNamespace || _getExtensionNamespace();\r\n }\r\n return ns ? ns[\"ChromeDbgExt\"] : null;\r\n}\r\nexport function getDebugListener(config) {\r\n if (!_debugListener) {\r\n _debugListener = {};\r\n for (var lp = 0; lp < listenerFuncs[_DYN_LENGTH /* @min:%2elength */]; lp++) {\r\n _debugListener[listenerFuncs[lp]] = _listenerProxyFunc(listenerFuncs[lp], config);\r\n }\r\n }\r\n return _debugListener;\r\n}\r\n//# sourceMappingURL=DbgExtensionUtils.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n\"use strict\";\r\nimport dynamicProto from \"@microsoft/dynamicproto-js\";\r\nimport { _DYN_DIAG_LOG, _DYN_ENABLE_DEBUG_EXCEPTI4, _DYN_LOGGER, _DYN_LOG_INTERNAL_MESSAGE, _DYN_MESSAGE, _DYN_MESSAGE_ID, _DYN_PUSH, _DYN_REPLACE } from \"../__DynamicConstants\";\r\nimport { getDebugExt } from \"./DbgExtensionUtils\";\r\nimport { dumpObj, getConsole, getJSON, hasJSON } from \"./EnvUtils\";\r\nimport { getCfgValue, isFunction, isUndefined } from \"./HelperFuncs\";\r\nimport { STR_EMPTY, STR_ERROR_TO_CONSOLE, STR_WARN_TO_CONSOLE } from \"./InternalConstants\";\r\n/**\r\n * For user non actionable traces use AI Internal prefix.\r\n */\r\nvar AiNonUserActionablePrefix = \"AI (Internal): \";\r\n/**\r\n * Prefix of the traces in portal.\r\n */\r\nvar AiUserActionablePrefix = \"AI: \";\r\n/**\r\n * Session storage key for the prefix for the key indicating message type already logged\r\n */\r\nvar AIInternalMessagePrefix = \"AITR_\";\r\nfunction _sanitizeDiagnosticText(text) {\r\n if (text) {\r\n return \"\\\"\" + text[_DYN_REPLACE /* @min:%2ereplace */](/\\\"/g, STR_EMPTY) + \"\\\"\";\r\n }\r\n return STR_EMPTY;\r\n}\r\nfunction _logToConsole(func, message) {\r\n var theConsole = getConsole();\r\n if (!!theConsole) {\r\n var logFunc = \"log\";\r\n if (theConsole[func]) {\r\n logFunc = func;\r\n }\r\n if (isFunction(theConsole[logFunc])) {\r\n theConsole[logFunc](message);\r\n }\r\n }\r\n}\r\nvar _InternalLogMessage = /** @class */ (function () {\r\n function _InternalLogMessage(msgId, msg, isUserAct, properties) {\r\n if (isUserAct === void 0) { isUserAct = false; }\r\n var _self = this;\r\n _self[_DYN_MESSAGE_ID /* @min:%2emessageId */] = msgId;\r\n _self[_DYN_MESSAGE /* @min:%2emessage */] =\r\n (isUserAct ? AiUserActionablePrefix : AiNonUserActionablePrefix) +\r\n msgId;\r\n var strProps = STR_EMPTY;\r\n if (hasJSON()) {\r\n strProps = getJSON().stringify(properties);\r\n }\r\n var diagnosticText = (msg ? \" message:\" + _sanitizeDiagnosticText(msg) : STR_EMPTY) +\r\n (properties ? \" props:\" + _sanitizeDiagnosticText(strProps) : STR_EMPTY);\r\n _self[_DYN_MESSAGE /* @min:%2emessage */] += diagnosticText;\r\n }\r\n _InternalLogMessage.dataType = \"MessageData\";\r\n return _InternalLogMessage;\r\n}());\r\nexport { _InternalLogMessage };\r\nexport function safeGetLogger(core, config) {\r\n return (core || {})[_DYN_LOGGER /* @min:%2elogger */] || new DiagnosticLogger(config);\r\n}\r\nvar DiagnosticLogger = /** @class */ (function () {\r\n function DiagnosticLogger(config) {\r\n this.identifier = \"DiagnosticLogger\";\r\n /**\r\n * The internal logging queue\r\n */\r\n this.queue = [];\r\n /**\r\n * Count of internal messages sent\r\n */\r\n var _messageCount = 0;\r\n /**\r\n * Holds information about what message types were already logged to console or sent to server.\r\n */\r\n var _messageLogged = {};\r\n var _loggingLevelConsole;\r\n var _loggingLevelTelemetry;\r\n var _maxInternalMessageLimit;\r\n var _enableDebug;\r\n dynamicProto(DiagnosticLogger, this, function (_self) {\r\n _setDefaultsFromConfig(config || {});\r\n _self.consoleLoggingLevel = function () { return _loggingLevelConsole; };\r\n _self.telemetryLoggingLevel = function () { return _loggingLevelTelemetry; };\r\n _self.maxInternalMessageLimit = function () { return _maxInternalMessageLimit; };\r\n _self[_DYN_ENABLE_DEBUG_EXCEPTI4 /* @min:%2eenableDebugExceptions */] = function () { return _enableDebug; };\r\n /**\r\n * This method will throw exceptions in debug mode or attempt to log the error as a console warning.\r\n * @param severity {LoggingSeverity} - The severity of the log message\r\n * @param message {_InternalLogMessage} - The log message.\r\n */\r\n _self.throwInternal = function (severity, msgId, msg, properties, isUserAct) {\r\n if (isUserAct === void 0) { isUserAct = false; }\r\n var message = new _InternalLogMessage(msgId, msg, isUserAct, properties);\r\n if (_enableDebug) {\r\n throw dumpObj(message);\r\n }\r\n else {\r\n // Get the logging function and fallback to warnToConsole of for some reason errorToConsole doesn't exist\r\n var logFunc = severity === 1 /* eLoggingSeverity.CRITICAL */ ? STR_ERROR_TO_CONSOLE : STR_WARN_TO_CONSOLE;\r\n if (!isUndefined(message[_DYN_MESSAGE /* @min:%2emessage */])) {\r\n if (isUserAct) {\r\n // check if this message type was already logged to console for this page view and if so, don't log it again\r\n var messageKey = +message[_DYN_MESSAGE_ID /* @min:%2emessageId */];\r\n if (!_messageLogged[messageKey] && _loggingLevelConsole >= severity) {\r\n _self[logFunc](message[_DYN_MESSAGE /* @min:%2emessage */]);\r\n _messageLogged[messageKey] = true;\r\n }\r\n }\r\n else {\r\n // Only log traces if the console Logging Level is >= the throwInternal severity level\r\n if (_loggingLevelConsole >= severity) {\r\n _self[logFunc](message[_DYN_MESSAGE /* @min:%2emessage */]);\r\n }\r\n }\r\n _logInternalMessage(severity, message);\r\n }\r\n else {\r\n _debugExtMsg(\"throw\" + (severity === 1 /* eLoggingSeverity.CRITICAL */ ? \"Critical\" : \"Warning\"), message);\r\n }\r\n }\r\n };\r\n /**\r\n * This will write a warning to the console if possible\r\n * @param message {string} - The warning message\r\n */\r\n _self[STR_WARN_TO_CONSOLE /* @min:%2ewarnToConsole */] = function (message) {\r\n _logToConsole(\"warn\", message);\r\n _debugExtMsg(\"warning\", message);\r\n };\r\n /**\r\n * This will write an error to the console if possible\r\n * @param message {string} - The error message\r\n */\r\n _self[STR_ERROR_TO_CONSOLE /* @min:%2eerrorToConsole */] = function (message) {\r\n _logToConsole(\"error\", message);\r\n _debugExtMsg(\"error\", message);\r\n };\r\n /**\r\n * Resets the internal message count\r\n */\r\n _self.resetInternalMessageCount = function () {\r\n _messageCount = 0;\r\n _messageLogged = {};\r\n };\r\n /**\r\n * Logs a message to the internal queue.\r\n * @param severity {LoggingSeverity} - The severity of the log message\r\n * @param message {_InternalLogMessage} - The message to log.\r\n */\r\n _self[_DYN_LOG_INTERNAL_MESSAGE /* @min:%2elogInternalMessage */] = _logInternalMessage;\r\n function _logInternalMessage(severity, message) {\r\n if (_areInternalMessagesThrottled()) {\r\n return;\r\n }\r\n // check if this message type was already logged for this session and if so, don't log it again\r\n var logMessage = true;\r\n var messageKey = AIInternalMessagePrefix + message[_DYN_MESSAGE_ID /* @min:%2emessageId */];\r\n // if the session storage is not available, limit to only one message type per page view\r\n if (_messageLogged[messageKey]) {\r\n logMessage = false;\r\n }\r\n else {\r\n _messageLogged[messageKey] = true;\r\n }\r\n if (logMessage) {\r\n // Push the event in the internal queue\r\n if (severity <= _loggingLevelTelemetry) {\r\n _self.queue[_DYN_PUSH /* @min:%2epush */](message);\r\n _messageCount++;\r\n _debugExtMsg((severity === 1 /* eLoggingSeverity.CRITICAL */ ? \"error\" : \"warn\"), message);\r\n }\r\n // When throttle limit reached, send a special event\r\n if (_messageCount === _maxInternalMessageLimit) {\r\n var throttleLimitMessage = \"Internal events throttle limit per PageView reached for this app.\";\r\n var throttleMessage = new _InternalLogMessage(23 /* _eInternalMessageId.MessageLimitPerPVExceeded */, throttleLimitMessage, false);\r\n _self.queue[_DYN_PUSH /* @min:%2epush */](throttleMessage);\r\n if (severity === 1 /* eLoggingSeverity.CRITICAL */) {\r\n _self[STR_ERROR_TO_CONSOLE /* @min:%2eerrorToConsole */](throttleLimitMessage);\r\n }\r\n else {\r\n _self[STR_WARN_TO_CONSOLE /* @min:%2ewarnToConsole */](throttleLimitMessage);\r\n }\r\n }\r\n }\r\n }\r\n function _setDefaultsFromConfig(config) {\r\n _loggingLevelConsole = getCfgValue(config.loggingLevelConsole, 0);\r\n _loggingLevelTelemetry = getCfgValue(config.loggingLevelTelemetry, 1);\r\n _maxInternalMessageLimit = getCfgValue(config.maxMessageLimit, 25);\r\n _enableDebug = getCfgValue(config.enableDebug, getCfgValue(config[_DYN_ENABLE_DEBUG_EXCEPTI4 /* @min:%2eenableDebugExceptions */], false));\r\n }\r\n function _areInternalMessagesThrottled() {\r\n return _messageCount >= _maxInternalMessageLimit;\r\n }\r\n function _debugExtMsg(name, data) {\r\n var dbgExt = getDebugExt(config || {});\r\n if (dbgExt && dbgExt[_DYN_DIAG_LOG /* @min:%2ediagLog */]) {\r\n dbgExt[_DYN_DIAG_LOG /* @min:%2ediagLog */](name, data);\r\n }\r\n }\r\n });\r\n }\r\n// Removed Stub for DiagnosticLogger.prototype.enableDebugExceptions.\r\n// Removed Stub for DiagnosticLogger.prototype.consoleLoggingLevel.\r\n// Removed Stub for DiagnosticLogger.prototype.telemetryLoggingLevel.\r\n// Removed Stub for DiagnosticLogger.prototype.maxInternalMessageLimit.\r\n// Removed Stub for DiagnosticLogger.prototype.throwInternal.\r\n// Removed Stub for DiagnosticLogger.prototype.warnToConsole.\r\n// Removed Stub for DiagnosticLogger.prototype.errorToConsole.\r\n// Removed Stub for DiagnosticLogger.prototype.resetInternalMessageCount.\r\n// Removed Stub for DiagnosticLogger.prototype.logInternalMessage.\r\n // This is a workaround for an IE8 bug when using dynamicProto() with classes that don't have any\n // non-dynamic functions or static properties/functions when using uglify-js to minify the resulting code.\n // this will be removed when ES3 support is dropped.\n DiagnosticLogger.__ieDyn=1;\n\n return DiagnosticLogger;\r\n}());\r\nexport { DiagnosticLogger };\r\nfunction _getLogger(logger) {\r\n return (logger || new DiagnosticLogger());\r\n}\r\n/**\r\n * This is a helper method which will call throwInternal on the passed logger, will throw exceptions in\r\n * debug mode or attempt to log the error as a console warning. This helper is provided mostly to better\r\n * support minification as logger.throwInternal() will not compress the publish \"throwInternal\" used throughout\r\n * the code.\r\n * @param logger - The Diagnostic Logger instance to use.\r\n * @param severity {LoggingSeverity} - The severity of the log message\r\n * @param message {_InternalLogMessage} - The log message.\r\n */\r\nexport function _throwInternal(logger, severity, msgId, msg, properties, isUserAct) {\r\n if (isUserAct === void 0) { isUserAct = false; }\r\n _getLogger(logger).throwInternal(severity, msgId, msg, properties, isUserAct);\r\n}\r\n/**\r\n * This is a helper method which will call warnToConsole on the passed logger with the provided message.\r\n * @param logger - The Diagnostic Logger instance to use.\r\n * @param message {_InternalLogMessage} - The log message.\r\n */\r\nexport function _warnToConsole(logger, message) {\r\n _getLogger(logger)[STR_WARN_TO_CONSOLE /* @min:%2ewarnToConsole */](message);\r\n}\r\n/**\r\n * Logs a message to the internal queue.\r\n * @param logger - The Diagnostic Logger instance to use.\r\n * @param severity {LoggingSeverity} - The severity of the log message\r\n * @param message {_InternalLogMessage} - The message to log.\r\n */\r\nexport function _logInternalMessage(logger, severity, message) {\r\n _getLogger(logger)[_DYN_LOG_INTERNAL_MESSAGE /* @min:%2elogInternalMessage */](severity, message);\r\n}\r\n//# sourceMappingURL=DiagnosticLogger.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport dynamicProto from \"@microsoft/dynamicproto-js\";\r\nimport { _DYN_COMPLETE, _DYN_GET_CTX, _DYN_IS_ASYNC, _DYN_IS_CHILD_EVT, _DYN_LENGTH, _DYN_NAME, _DYN_PUSH, _DYN_SET_CTX, _DYN_TIME } from \"../__DynamicConstants\";\r\nimport { dateNow, isArray, isFunction, objDefineAccessors } from \"./HelperFuncs\";\r\nimport { STR_GET_PERF_MGR, STR_PERF_EVENT } from \"./InternalConstants\";\r\nvar strExecutionContextKey = \"ctx\";\r\nvar strParentContextKey = \"ParentContextKey\";\r\nvar strChildrenContextKey = \"ChildrenContextKey\";\r\nvar _defaultPerfManager = null;\r\nvar PerfEvent = /** @class */ (function () {\r\n function PerfEvent(name, payloadDetails, isAsync) {\r\n var _self = this;\r\n var accessorDefined = false;\r\n _self.start = dateNow();\r\n _self[_DYN_NAME /* @min:%2ename */] = name;\r\n _self[_DYN_IS_ASYNC /* @min:%2eisAsync */] = isAsync;\r\n _self[_DYN_IS_CHILD_EVT /* @min:%2eisChildEvt */] = function () { return false; };\r\n if (isFunction(payloadDetails)) {\r\n // Create an accessor to minimize the potential performance impact of executing the payloadDetails callback\r\n var theDetails_1;\r\n accessorDefined = objDefineAccessors(_self, \"payload\", function () {\r\n // Delay the execution of the payloadDetails until needed\r\n if (!theDetails_1 && isFunction(payloadDetails)) {\r\n theDetails_1 = payloadDetails();\r\n // clear it out now so the referenced objects can be garbage collected\r\n payloadDetails = null;\r\n }\r\n return theDetails_1;\r\n });\r\n }\r\n _self[_DYN_GET_CTX /* @min:%2egetCtx */] = function (key) {\r\n if (key) {\r\n // The parent and child links are located directly on the object (for better viewing in the DebugPlugin)\r\n if (key === PerfEvent[strParentContextKey] || key === PerfEvent[strChildrenContextKey]) {\r\n return _self[key];\r\n }\r\n return (_self[strExecutionContextKey] || {})[key];\r\n }\r\n return null;\r\n };\r\n _self[_DYN_SET_CTX /* @min:%2esetCtx */] = function (key, value) {\r\n if (key) {\r\n // Put the parent and child links directly on the object (for better viewing in the DebugPlugin)\r\n if (key === PerfEvent[strParentContextKey]) {\r\n // Simple assumption, if we are setting a parent then we must be a child\r\n if (!_self[key]) {\r\n _self[_DYN_IS_CHILD_EVT /* @min:%2eisChildEvt */] = function () { return true; };\r\n }\r\n _self[key] = value;\r\n }\r\n else if (key === PerfEvent[strChildrenContextKey]) {\r\n _self[key] = value;\r\n }\r\n else {\r\n var ctx = _self[strExecutionContextKey] = _self[strExecutionContextKey] || {};\r\n ctx[key] = value;\r\n }\r\n }\r\n };\r\n _self[_DYN_COMPLETE /* @min:%2ecomplete */] = function () {\r\n var childTime = 0;\r\n var childEvts = _self[_DYN_GET_CTX /* @min:%2egetCtx */](PerfEvent[strChildrenContextKey]);\r\n if (isArray(childEvts)) {\r\n for (var lp = 0; lp < childEvts[_DYN_LENGTH /* @min:%2elength */]; lp++) {\r\n var childEvt = childEvts[lp];\r\n if (childEvt) {\r\n childTime += childEvt[_DYN_TIME /* @min:%2etime */];\r\n }\r\n }\r\n }\r\n _self[_DYN_TIME /* @min:%2etime */] = dateNow() - _self.start;\r\n _self.exTime = _self[_DYN_TIME /* @min:%2etime */] - childTime;\r\n _self[_DYN_COMPLETE /* @min:%2ecomplete */] = function () { };\r\n if (!accessorDefined && isFunction(payloadDetails)) {\r\n // If we couldn't define the property set during complete -- to minimize the perf impact until after the time\r\n _self.payload = payloadDetails();\r\n }\r\n };\r\n }\r\n PerfEvent.ParentContextKey = \"parent\";\r\n PerfEvent.ChildrenContextKey = \"childEvts\";\r\n return PerfEvent;\r\n}());\r\nexport { PerfEvent };\r\nvar PerfManager = /** @class */ (function () {\r\n function PerfManager(manager) {\r\n /**\r\n * General bucket used for execution context set and retrieved via setCtx() and getCtx.\r\n * Defined as private so it can be visualized via the DebugPlugin\r\n */\r\n this.ctx = {};\r\n dynamicProto(PerfManager, this, function (_self) {\r\n _self.create = function (src, payloadDetails, isAsync) {\r\n // TODO (@MSNev): at some point we will want to add additional configuration to \"select\" which events to instrument\r\n // for now this is just a simple do everything.\r\n return new PerfEvent(src, payloadDetails, isAsync);\r\n };\r\n _self.fire = function (perfEvent) {\r\n if (perfEvent) {\r\n perfEvent[_DYN_COMPLETE /* @min:%2ecomplete */]();\r\n if (manager && isFunction(manager[STR_PERF_EVENT /* @min:%2eperfEvent */])) {\r\n manager[STR_PERF_EVENT /* @min:%2eperfEvent */](perfEvent);\r\n }\r\n }\r\n };\r\n _self[_DYN_SET_CTX /* @min:%2esetCtx */] = function (key, value) {\r\n if (key) {\r\n var ctx = _self[strExecutionContextKey] = _self[strExecutionContextKey] || {};\r\n ctx[key] = value;\r\n }\r\n };\r\n _self[_DYN_GET_CTX /* @min:%2egetCtx */] = function (key) {\r\n return (_self[strExecutionContextKey] || {})[key];\r\n };\r\n });\r\n }\r\n// Removed Stub for PerfManager.prototype.create.\r\n// Removed Stub for PerfManager.prototype.fire.\r\n// Removed Stub for PerfManager.prototype.setCtx.\r\n// Removed Stub for PerfManager.prototype.getCtx.\r\n // This is a workaround for an IE8 bug when using dynamicProto() with classes that don't have any\n // non-dynamic functions or static properties/functions when using uglify-js to minify the resulting code.\n // this will be removed when ES3 support is dropped.\n PerfManager.__ieDyn=1;\n\n return PerfManager;\r\n}());\r\nexport { PerfManager };\r\nvar doPerfActiveKey = \"CoreUtils.doPerf\";\r\n/**\r\n * Helper function to wrap a function with a perf event\r\n * @param mgrSource - The Performance Manager or a Performance provider source (may be null)\r\n * @param getSource - The callback to create the source name for the event (if perf monitoring is enabled)\r\n * @param func - The function to call and measure\r\n * @param details - A function to return the payload details\r\n * @param isAsync - Is the event / function being call asynchronously or synchronously\r\n */\r\nexport function doPerf(mgrSource, getSource, func, details, isAsync) {\r\n if (mgrSource) {\r\n var perfMgr = mgrSource;\r\n if (perfMgr[STR_GET_PERF_MGR]) {\r\n // Looks like a perf manager provider object\r\n perfMgr = perfMgr[STR_GET_PERF_MGR]();\r\n }\r\n if (perfMgr) {\r\n var perfEvt = void 0;\r\n var currentActive = perfMgr[_DYN_GET_CTX /* @min:%2egetCtx */](doPerfActiveKey);\r\n try {\r\n perfEvt = perfMgr.create(getSource(), details, isAsync);\r\n if (perfEvt) {\r\n if (currentActive && perfEvt[_DYN_SET_CTX /* @min:%2esetCtx */]) {\r\n perfEvt[_DYN_SET_CTX /* @min:%2esetCtx */](PerfEvent[strParentContextKey], currentActive);\r\n if (currentActive[_DYN_GET_CTX /* @min:%2egetCtx */] && currentActive[_DYN_SET_CTX /* @min:%2esetCtx */]) {\r\n var children = currentActive[_DYN_GET_CTX /* @min:%2egetCtx */](PerfEvent[strChildrenContextKey]);\r\n if (!children) {\r\n children = [];\r\n currentActive[_DYN_SET_CTX /* @min:%2esetCtx */](PerfEvent[strChildrenContextKey], children);\r\n }\r\n children[_DYN_PUSH /* @min:%2epush */](perfEvt);\r\n }\r\n }\r\n // Set this event as the active event now\r\n perfMgr[_DYN_SET_CTX /* @min:%2esetCtx */](doPerfActiveKey, perfEvt);\r\n return func(perfEvt);\r\n }\r\n }\r\n catch (ex) {\r\n if (perfEvt && perfEvt[_DYN_SET_CTX /* @min:%2esetCtx */]) {\r\n perfEvt[_DYN_SET_CTX /* @min:%2esetCtx */](\"exception\", ex);\r\n }\r\n }\r\n finally {\r\n // fire the perf event\r\n if (perfEvt) {\r\n perfMgr.fire(perfEvt);\r\n }\r\n // Reset the active event to the previous value\r\n perfMgr[_DYN_SET_CTX /* @min:%2esetCtx */](doPerfActiveKey, currentActive);\r\n }\r\n }\r\n }\r\n return func();\r\n}\r\n/**\r\n * Set the global performance manager to use when there is no core instance or it has not been initialized yet.\r\n * @param perfManager - The IPerfManager instance to use when no performance manager is supplied.\r\n */\r\nexport function setGblPerfMgr(perfManager) {\r\n _defaultPerfManager = perfManager;\r\n}\r\n/**\r\n * Get the current global performance manager that will be used with no performance manager is supplied.\r\n * @returns - The current default manager\r\n */\r\nexport function getGblPerfMgr() {\r\n return _defaultPerfManager;\r\n}\r\n//# sourceMappingURL=PerfManager.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport { _DYN_LENGTH } from \"../__DynamicConstants\";\r\nimport { getCrypto, getMsCrypto, isIE } from \"./EnvUtils\";\r\nimport { dateNow } from \"./HelperFuncs\";\r\nimport { STR_EMPTY } from \"./InternalConstants\";\r\nvar UInt32Mask = 0x100000000;\r\nvar MaxUInt32 = 0xffffffff;\r\n// MWC based Random generator (for IE)\r\nvar _mwcSeeded = false;\r\nvar _mwcW = 123456789;\r\nvar _mwcZ = 987654321;\r\n// Takes any integer\r\nfunction _mwcSeed(seedValue) {\r\n if (seedValue < 0) {\r\n // Make sure we end up with a positive number and not -ve one.\r\n seedValue >>>= 0;\r\n }\r\n _mwcW = (123456789 + seedValue) & MaxUInt32;\r\n _mwcZ = (987654321 - seedValue) & MaxUInt32;\r\n _mwcSeeded = true;\r\n}\r\nfunction _autoSeedMwc() {\r\n // Simple initialization using default Math.random() - So we inherit any entropy from the browser\r\n // and bitwise XOR with the current milliseconds\r\n try {\r\n var now = dateNow() & 0x7fffffff;\r\n _mwcSeed(((Math.random() * UInt32Mask) ^ now) + now);\r\n }\r\n catch (e) {\r\n // Don't crash if something goes wrong\r\n }\r\n}\r\n/**\r\n * Generate a random value between 0 and maxValue, max value should be limited to a 32-bit maximum.\r\n * So maxValue(16) will produce a number from 0..16 (range of 17)\r\n * @param maxValue\r\n */\r\nexport function randomValue(maxValue) {\r\n if (maxValue > 0) {\r\n return Math.floor((random32() / MaxUInt32) * (maxValue + 1)) >>> 0;\r\n }\r\n return 0;\r\n}\r\n/**\r\n * generate a random 32-bit number (0x000000..0xFFFFFFFF) or (-0x80000000..0x7FFFFFFF), defaults un-unsigned.\r\n * @param signed - True to return a signed 32-bit number (-0x80000000..0x7FFFFFFF) otherwise an unsigned one (0x000000..0xFFFFFFFF)\r\n */\r\nexport function random32(signed) {\r\n var value = 0;\r\n var c = getCrypto() || getMsCrypto();\r\n if (c && c.getRandomValues) {\r\n // Make sure the number is converted into the specified range (-0x80000000..0x7FFFFFFF)\r\n value = c.getRandomValues(new Uint32Array(1))[0] & MaxUInt32;\r\n }\r\n if (value === 0 && isIE()) {\r\n // For IE 6, 7, 8 (especially on XP) Math.random is not very random\r\n if (!_mwcSeeded) {\r\n // Set the seed for the Mwc algorithm\r\n _autoSeedMwc();\r\n }\r\n // Don't use Math.random for IE\r\n // Make sure the number is converted into the specified range (-0x80000000..0x7FFFFFFF)\r\n value = mwcRandom32() & MaxUInt32;\r\n }\r\n if (value === 0) {\r\n // Make sure the number is converted into the specified range (-0x80000000..0x7FFFFFFF)\r\n value = Math.floor((UInt32Mask * Math.random()) | 0);\r\n }\r\n if (!signed) {\r\n // Make sure we end up with a positive number and not -ve one.\r\n value >>>= 0;\r\n }\r\n return value;\r\n}\r\n/**\r\n * Seed the MWC random number generator with the specified seed or a random value\r\n * @param value - optional the number to used as the seed, if undefined, null or zero a random value will be chosen\r\n */\r\nexport function mwcRandomSeed(value) {\r\n if (!value) {\r\n _autoSeedMwc();\r\n }\r\n else {\r\n _mwcSeed(value);\r\n }\r\n}\r\n/**\r\n * Generate a random 32-bit number between (0x000000..0xFFFFFFFF) or (-0x80000000..0x7FFFFFFF), using MWC (Multiply with carry)\r\n * instead of Math.random() defaults to un-signed.\r\n * Used as a replacement random generator for IE to avoid issues with older IE instances.\r\n * @param signed - True to return a signed 32-bit number (-0x80000000..0x7FFFFFFF) otherwise an unsigned one (0x000000..0xFFFFFFFF)\r\n */\r\nexport function mwcRandom32(signed) {\r\n _mwcZ = (36969 * (_mwcZ & 0xFFFF) + (_mwcZ >> 16)) & MaxUInt32;\r\n _mwcW = (18000 * (_mwcW & 0xFFFF) + (_mwcW >> 16)) & MaxUInt32;\r\n var value = (((_mwcZ << 16) + (_mwcW & 0xFFFF)) >>> 0) & MaxUInt32 | 0;\r\n if (!signed) {\r\n // Make sure we end up with a positive number and not -ve one.\r\n value >>>= 0;\r\n }\r\n return value;\r\n}\r\n/**\r\n * Generate random base64 id string.\r\n * The default length is 22 which is 132-bits so almost the same as a GUID but as base64 (the previous default was 5)\r\n * @param maxLength - Optional value to specify the length of the id to be generated, defaults to 22\r\n */\r\nexport function newId(maxLength) {\r\n if (maxLength === void 0) { maxLength = 22; }\r\n var base64chars = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\r\n // Start with an initial random number, consuming the value in reverse byte order\r\n var number = random32() >>> 0; // Make sure it's a +ve number\r\n var chars = 0;\r\n var result = STR_EMPTY;\r\n while (result[_DYN_LENGTH /* @min:%2elength */] < maxLength) {\r\n chars++;\r\n result += base64chars.charAt(number & 0x3F);\r\n number >>>= 6; // Zero fill with right shift\r\n if (chars === 5) {\r\n // 5 base64 characters === 30 bits so we don't have enough bits for another base64 char\r\n // So add on another 30 bits and make sure it's +ve\r\n number = (((random32() << 2) & 0xFFFFFFFF) | (number & 0x03)) >>> 0;\r\n chars = 0; // We need to reset the number every 5 chars (30 bits)\r\n }\r\n }\r\n return result;\r\n}\r\n//# sourceMappingURL=RandomHelper.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport { ObjDefineProperty } from \"@microsoft/applicationinsights-shims\";\r\nimport { _DYN_NODE_TYPE } from \"../__DynamicConstants\";\r\nimport { normalizeJsName } from \"./HelperFuncs\";\r\nimport { STR_EMPTY } from \"./InternalConstants\";\r\nimport { newId } from \"./RandomHelper\";\r\nvar _objDefineProperty = ObjDefineProperty;\r\nvar version = '2.8.14';\r\nvar instanceName = \".\" + newId(6);\r\nvar _dataUid = 0;\r\nfunction _createAccessor(target, prop, value) {\r\n if (_objDefineProperty) {\r\n try {\r\n _objDefineProperty(target, prop, {\r\n value: value,\r\n enumerable: false,\r\n configurable: true\r\n });\r\n return true;\r\n }\r\n catch (e) {\r\n // IE8 Defines a defineProperty on Object but it's only supported for DOM elements so it will throw\r\n // We will just ignore this here.\r\n }\r\n }\r\n return false;\r\n}\r\n// Accepts only:\r\n// - Node\r\n// - Node.ELEMENT_NODE\r\n// - Node.DOCUMENT_NODE\r\n// - Object\r\n// - Any\r\nfunction _canAcceptData(target) {\r\n return target[_DYN_NODE_TYPE /* @min:%2enodeType */] === 1 || target[_DYN_NODE_TYPE /* @min:%2enodeType */] === 9 || !(+target[_DYN_NODE_TYPE /* @min:%2enodeType */]);\r\n}\r\nfunction _getCache(data, target) {\r\n var theCache = target[data.id];\r\n if (!theCache) {\r\n theCache = {};\r\n try {\r\n if (_canAcceptData(target)) {\r\n if (!_createAccessor(target, data.id, theCache)) {\r\n // Environment doesn't support accessor, so just use direct assignment\r\n target[data.id] = theCache;\r\n }\r\n }\r\n }\r\n catch (e) {\r\n // Not all environments allow extending all objects, so just ignore the cache in those cases\r\n }\r\n }\r\n return theCache;\r\n}\r\nexport function createUniqueNamespace(name, includeVersion) {\r\n if (includeVersion === void 0) { includeVersion = false; }\r\n return normalizeJsName(name + (_dataUid++) + (includeVersion ? \".\" + version : STR_EMPTY) + instanceName);\r\n}\r\nexport function createElmNodeData(name) {\r\n var data = {\r\n id: createUniqueNamespace(\"_aiData-\" + (name || STR_EMPTY) + \".\" + version),\r\n accept: function (target) {\r\n return _canAcceptData(target);\r\n },\r\n get: function (target, name, defValue, addDefault) {\r\n var theCache = target[data.id];\r\n if (!theCache) {\r\n if (addDefault) {\r\n // Side effect is adds the cache\r\n theCache = _getCache(data, target);\r\n theCache[normalizeJsName(name)] = defValue;\r\n }\r\n return defValue;\r\n }\r\n return theCache[normalizeJsName(name)];\r\n },\r\n kill: function (target, name) {\r\n if (target && target[name]) {\r\n try {\r\n delete target[name];\r\n }\r\n catch (e) {\r\n // Just cleaning up, so if this fails -- ignore\r\n }\r\n }\r\n }\r\n };\r\n return data;\r\n}\r\n//# sourceMappingURL=DataCacheHelper.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\nimport { _DYN_COOKIE_CFG, _DYN_INDEX_OF, _DYN_LENGTH, _DYN_LOGGER, _DYN_SET_ENABLED, _DYN_SPLIT, _DYN_SUBSTRING, _DYN_USER_AGENT } from \"../__DynamicConstants\";\r\nimport { _throwInternal } from \"./DiagnosticLogger\";\r\nimport { dumpObj, getDocument, getLocation, getNavigator, isIE } from \"./EnvUtils\";\r\nimport { arrForEach, dateNow, getExceptionName, isArray, isFunction, isNotNullOrUndefined, isNullOrUndefined, isString, isTruthy, isUndefined, objForEachKey, setValue, strContains, strEndsWith, strTrim } from \"./HelperFuncs\";\r\nimport { STR_EMPTY } from \"./InternalConstants\";\r\nvar strToGMTString = \"toGMTString\";\r\nvar strToUTCString = \"toUTCString\";\r\nvar strCookie = \"cookie\";\r\nvar strExpires = \"expires\";\r\nvar strEnabled = \"enabled\";\r\nvar strIsCookieUseDisabled = \"isCookieUseDisabled\";\r\nvar strDisableCookiesUsage = \"disableCookiesUsage\";\r\nvar strConfigCookieMgr = \"_ckMgr\";\r\nvar _supportsCookies = null;\r\nvar _allowUaSameSite = null;\r\nvar _parsedCookieValue = null;\r\nvar _doc = getDocument();\r\nvar _cookieCache = {};\r\nvar _globalCookieConfig = {};\r\n/**\r\n * @ignore\r\n * DO NOT USE or export from the module, this is exposed as public to support backward compatibility of previous static utility methods only.\r\n * If you want to manager cookies either use the ICookieMgr available from the core instance via getCookieMgr() or create\r\n * your own instance of the CookieMgr and use that.\r\n * Using this directly for enabling / disabling cookie handling will not only affect your usage but EVERY user of cookies.\r\n * Example, if you are using a shared component that is also using Application Insights you will affect their cookie handling.\r\n * @param logger - The DiagnosticLogger to use for reporting errors.\r\n */\r\nexport function _gblCookieMgr(config, logger) {\r\n // Stash the global instance against the BaseCookieMgr class\r\n var inst = createCookieMgr[strConfigCookieMgr] || _globalCookieConfig[strConfigCookieMgr];\r\n if (!inst) {\r\n // Note: not using the getSetValue() helper as that would require always creating a temporary cookieMgr\r\n // that ultimately is never used\r\n inst = createCookieMgr[strConfigCookieMgr] = createCookieMgr(config, logger);\r\n _globalCookieConfig[strConfigCookieMgr] = inst;\r\n }\r\n return inst;\r\n}\r\nfunction _isMgrEnabled(cookieMgr) {\r\n if (cookieMgr) {\r\n return cookieMgr.isEnabled();\r\n }\r\n return true;\r\n}\r\nfunction _createCookieMgrConfig(rootConfig) {\r\n var cookieMgrCfg = rootConfig[_DYN_COOKIE_CFG /* @min:%2ecookieCfg */] = rootConfig[_DYN_COOKIE_CFG /* @min:%2ecookieCfg */] || {};\r\n // Sets the values from the root config if not already present on the cookieMgrCfg\r\n setValue(cookieMgrCfg, \"domain\", rootConfig.cookieDomain, isNotNullOrUndefined, isNullOrUndefined);\r\n setValue(cookieMgrCfg, \"path\", rootConfig.cookiePath || \"/\", null, isNullOrUndefined);\r\n if (isNullOrUndefined(cookieMgrCfg[strEnabled])) {\r\n // Set the enabled from the provided setting or the legacy root values\r\n var cookieEnabled = void 0;\r\n if (!isUndefined(rootConfig[strIsCookieUseDisabled])) {\r\n cookieEnabled = !rootConfig[strIsCookieUseDisabled];\r\n }\r\n if (!isUndefined(rootConfig[strDisableCookiesUsage])) {\r\n cookieEnabled = !rootConfig[strDisableCookiesUsage];\r\n }\r\n cookieMgrCfg[strEnabled] = cookieEnabled;\r\n }\r\n return cookieMgrCfg;\r\n}\r\nfunction _isIgnoredCookie(cookieMgrCfg, name) {\r\n if (name && cookieMgrCfg && isArray(cookieMgrCfg.ignoreCookies)) {\r\n return cookieMgrCfg.ignoreCookies[_DYN_INDEX_OF /* @min:%2eindexOf */](name) !== -1;\r\n }\r\n return false;\r\n}\r\nfunction _isBlockedCookie(cookieMgrCfg, name) {\r\n if (name && cookieMgrCfg && isArray(cookieMgrCfg.blockedCookies)) {\r\n if (cookieMgrCfg.blockedCookies[_DYN_INDEX_OF /* @min:%2eindexOf */](name) !== -1) {\r\n return true;\r\n }\r\n }\r\n return _isIgnoredCookie(cookieMgrCfg, name);\r\n}\r\n/**\r\n * Helper to return the ICookieMgr from the core (if not null/undefined) or a default implementation\r\n * associated with the configuration or a legacy default.\r\n * @param core\r\n * @param config\r\n * @returns\r\n */\r\nexport function safeGetCookieMgr(core, config) {\r\n var cookieMgr;\r\n if (core) {\r\n // Always returns an instance\r\n cookieMgr = core.getCookieMgr();\r\n }\r\n else if (config) {\r\n var cookieCfg = config[_DYN_COOKIE_CFG /* @min:%2ecookieCfg */];\r\n if (cookieCfg[strConfigCookieMgr]) {\r\n cookieMgr = cookieCfg[strConfigCookieMgr];\r\n }\r\n else {\r\n cookieMgr = createCookieMgr(config);\r\n }\r\n }\r\n if (!cookieMgr) {\r\n // Get or initialize the default global (legacy) cookie manager if we couldn't find one\r\n cookieMgr = _gblCookieMgr(config, (core || {})[_DYN_LOGGER /* @min:%2elogger */]);\r\n }\r\n return cookieMgr;\r\n}\r\nexport function createCookieMgr(rootConfig, logger) {\r\n var _a;\r\n var cookieMgrConfig = _createCookieMgrConfig(rootConfig || _globalCookieConfig);\r\n var _path = cookieMgrConfig.path || \"/\";\r\n var _domain = cookieMgrConfig.domain;\r\n // Explicitly checking against false, so that setting to undefined will === true\r\n var _enabled = cookieMgrConfig[strEnabled] !== false;\r\n var cookieMgr = (_a = {\r\n isEnabled: function () {\r\n var enabled = _enabled && areCookiesSupported(logger);\r\n // Using an indirect lookup for any global cookie manager to support tree shaking for SDK's\r\n // that don't use the \"applicationinsights-core\" version of the default cookie function\r\n var gblManager = _globalCookieConfig[strConfigCookieMgr];\r\n if (enabled && gblManager && cookieMgr !== gblManager) {\r\n // Make sure the GlobalCookie Manager instance (if not this instance) is also enabled.\r\n // As the global (deprecated) functions may have been called (for backward compatibility)\r\n enabled = _isMgrEnabled(gblManager);\r\n }\r\n return enabled;\r\n }\r\n },\r\n _a[_DYN_SET_ENABLED /* @min:setEnabled */] = function (value) {\r\n // Explicitly checking against false, so that setting to undefined will === true\r\n _enabled = value !== false;\r\n },\r\n _a.set = function (name, value, maxAgeSec, domain, path) {\r\n var result = false;\r\n if (_isMgrEnabled(cookieMgr) && !_isBlockedCookie(cookieMgrConfig, name)) {\r\n var values = {};\r\n var theValue = strTrim(value || STR_EMPTY);\r\n var idx = theValue[_DYN_INDEX_OF /* @min:%2eindexOf */](\";\");\r\n if (idx !== -1) {\r\n theValue = strTrim(value[_DYN_SUBSTRING /* @min:%2esubstring */](0, idx));\r\n values = _extractParts(value[_DYN_SUBSTRING /* @min:%2esubstring */](idx + 1));\r\n }\r\n // Only update domain if not already present (isUndefined) and the value is truthy (not null, undefined or empty string)\r\n setValue(values, \"domain\", domain || _domain, isTruthy, isUndefined);\r\n if (!isNullOrUndefined(maxAgeSec)) {\r\n var _isIE = isIE();\r\n if (isUndefined(values[strExpires])) {\r\n var nowMs = dateNow();\r\n // Only add expires if not already present\r\n var expireMs = nowMs + (maxAgeSec * 1000);\r\n // Sanity check, if zero or -ve then ignore\r\n if (expireMs > 0) {\r\n var expiry = new Date();\r\n expiry.setTime(expireMs);\r\n setValue(values, strExpires, _formatDate(expiry, !_isIE ? strToUTCString : strToGMTString) || _formatDate(expiry, _isIE ? strToGMTString : strToUTCString) || STR_EMPTY, isTruthy);\r\n }\r\n }\r\n if (!_isIE) {\r\n // Only replace if not already present\r\n setValue(values, \"max-age\", STR_EMPTY + maxAgeSec, null, isUndefined);\r\n }\r\n }\r\n var location_1 = getLocation();\r\n if (location_1 && location_1.protocol === \"https:\") {\r\n setValue(values, \"secure\", null, null, isUndefined);\r\n // Only set same site if not also secure\r\n if (_allowUaSameSite === null) {\r\n _allowUaSameSite = !uaDisallowsSameSiteNone((getNavigator() || {})[_DYN_USER_AGENT /* @min:%2euserAgent */]);\r\n }\r\n if (_allowUaSameSite) {\r\n setValue(values, \"SameSite\", \"None\", null, isUndefined);\r\n }\r\n }\r\n setValue(values, \"path\", path || _path, null, isUndefined);\r\n var setCookieFn = cookieMgrConfig.setCookie || _setCookieValue;\r\n setCookieFn(name, _formatCookieValue(theValue, values));\r\n result = true;\r\n }\r\n return result;\r\n },\r\n _a.get = function (name) {\r\n var value = STR_EMPTY;\r\n if (_isMgrEnabled(cookieMgr) && !_isIgnoredCookie(cookieMgrConfig, name)) {\r\n value = (cookieMgrConfig.getCookie || _getCookieValue)(name);\r\n }\r\n return value;\r\n },\r\n _a.del = function (name, path) {\r\n var result = false;\r\n if (_isMgrEnabled(cookieMgr)) {\r\n // Only remove the cookie if the manager and cookie support has not been disabled\r\n result = cookieMgr.purge(name, path);\r\n }\r\n return result;\r\n },\r\n _a.purge = function (name, path) {\r\n var _a;\r\n var result = false;\r\n if (areCookiesSupported(logger)) {\r\n // Setting the expiration date in the past immediately removes the cookie\r\n var values = (_a = {},\r\n _a[\"path\"] = path ? path : \"/\",\r\n _a[strExpires] = \"Thu, 01 Jan 1970 00:00:01 GMT\",\r\n _a);\r\n if (!isIE()) {\r\n // Set max age to expire now\r\n values[\"max-age\"] = \"0\";\r\n }\r\n var delCookie = cookieMgrConfig.delCookie || _setCookieValue;\r\n delCookie(name, _formatCookieValue(STR_EMPTY, values));\r\n result = true;\r\n }\r\n return result;\r\n },\r\n _a);\r\n // Associated this cookie manager with the config\r\n cookieMgr[strConfigCookieMgr] = cookieMgr;\r\n return cookieMgr;\r\n}\r\n/*\r\n* Helper method to tell if document.cookie object is supported by the runtime\r\n*/\r\nexport function areCookiesSupported(logger) {\r\n if (_supportsCookies === null) {\r\n _supportsCookies = false;\r\n try {\r\n var doc = _doc || {};\r\n _supportsCookies = doc[strCookie] !== undefined;\r\n }\r\n catch (e) {\r\n _throwInternal(logger, 2 /* eLoggingSeverity.WARNING */, 68 /* _eInternalMessageId.CannotAccessCookie */, \"Cannot access document.cookie - \" + getExceptionName(e), { exception: dumpObj(e) });\r\n }\r\n }\r\n return _supportsCookies;\r\n}\r\nfunction _extractParts(theValue) {\r\n var values = {};\r\n if (theValue && theValue[_DYN_LENGTH /* @min:%2elength */]) {\r\n var parts = strTrim(theValue)[_DYN_SPLIT /* @min:%2esplit */](\";\");\r\n arrForEach(parts, function (thePart) {\r\n thePart = strTrim(thePart || STR_EMPTY);\r\n if (thePart) {\r\n var idx = thePart[_DYN_INDEX_OF /* @min:%2eindexOf */](\"=\");\r\n if (idx === -1) {\r\n values[thePart] = null;\r\n }\r\n else {\r\n values[strTrim(thePart[_DYN_SUBSTRING /* @min:%2esubstring */](0, idx))] = strTrim(thePart[_DYN_SUBSTRING /* @min:%2esubstring */](idx + 1));\r\n }\r\n }\r\n });\r\n }\r\n return values;\r\n}\r\nfunction _formatDate(theDate, func) {\r\n if (isFunction(theDate[func])) {\r\n return theDate[func]();\r\n }\r\n return null;\r\n}\r\nfunction _formatCookieValue(value, values) {\r\n var cookieValue = value || STR_EMPTY;\r\n objForEachKey(values, function (name, theValue) {\r\n cookieValue += \"; \" + name + (!isNullOrUndefined(theValue) ? \"=\" + theValue : STR_EMPTY);\r\n });\r\n return cookieValue;\r\n}\r\nfunction _getCookieValue(name) {\r\n var cookieValue = STR_EMPTY;\r\n if (_doc) {\r\n var theCookie = _doc[strCookie] || STR_EMPTY;\r\n if (_parsedCookieValue !== theCookie) {\r\n _cookieCache = _extractParts(theCookie);\r\n _parsedCookieValue = theCookie;\r\n }\r\n cookieValue = strTrim(_cookieCache[name] || STR_EMPTY);\r\n }\r\n return cookieValue;\r\n}\r\nfunction _setCookieValue(name, cookieValue) {\r\n if (_doc) {\r\n _doc[strCookie] = name + \"=\" + cookieValue;\r\n }\r\n}\r\nexport function uaDisallowsSameSiteNone(userAgent) {\r\n if (!isString(userAgent)) {\r\n return false;\r\n }\r\n // Cover all iOS based browsers here. This includes:\r\n // - Safari on iOS 12 for iPhone, iPod Touch, iPad\r\n // - WkWebview on iOS 12 for iPhone, iPod Touch, iPad\r\n // - Chrome on iOS 12 for iPhone, iPod Touch, iPad\r\n // All of which are broken by SameSite=None, because they use the iOS networking stack\r\n if (strContains(userAgent, \"CPU iPhone OS 12\") || strContains(userAgent, \"iPad; CPU OS 12\")) {\r\n return true;\r\n }\r\n // Cover Mac OS X based browsers that use the Mac OS networking stack. This includes:\r\n // - Safari on Mac OS X\r\n // This does not include:\r\n // - Internal browser on Mac OS X\r\n // - Chrome on Mac OS X\r\n // - Chromium on Mac OS X\r\n // Because they do not use the Mac OS networking stack.\r\n if (strContains(userAgent, \"Macintosh; Intel Mac OS X 10_14\") && strContains(userAgent, \"Version/\") && strContains(userAgent, \"Safari\")) {\r\n return true;\r\n }\r\n // Cover Mac OS X internal browsers that use the Mac OS networking stack. This includes:\r\n // - Internal browser on Mac OS X\r\n // This does not include:\r\n // - Safari on Mac OS X\r\n // - Chrome on Mac OS X\r\n // - Chromium on Mac OS X\r\n // Because they do not use the Mac OS networking stack.\r\n if (strContains(userAgent, \"Macintosh; Intel Mac OS X 10_14\") && strEndsWith(userAgent, \"AppleWebKit/605.1.15 (KHTML, like Gecko)\")) {\r\n return true;\r\n }\r\n // Cover Chrome 50-69, because some versions are broken by SameSite=None, and none in this range require it.\r\n // Note: this covers some pre-Chromium Edge versions, but pre-Chromim Edge does not require SameSite=None, so this is fine.\r\n // Note: this regex applies to Windows, Mac OS X, and Linux, deliberately.\r\n if (strContains(userAgent, \"Chrome/5\") || strContains(userAgent, \"Chrome/6\")) {\r\n return true;\r\n }\r\n // Unreal Engine runs Chromium 59, but does not advertise as Chrome until 4.23. Treat versions of Unreal\r\n // that don't specify their Chrome version as lacking support for SameSite=None.\r\n if (strContains(userAgent, \"UnrealEngine\") && !strContains(userAgent, \"Chrome\")) {\r\n return true;\r\n }\r\n // UCBrowser < 12.13.2 ignores Set-Cookie headers with SameSite=None\r\n // NB: this rule isn't complete - you need regex to make a complete rule.\r\n // See: https://www.chromium.org/updates/same-site/incompatible-clients\r\n if (strContains(userAgent, \"UCBrowser/12\") || strContains(userAgent, \"UCBrowser/11\")) {\r\n return true;\r\n }\r\n return false;\r\n}\r\n//# sourceMappingURL=CookieMgr.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n\"use strict\";\r\nimport { _DYN_CALL, _DYN_GET_NEXT, _DYN_GET_PLUGIN, _DYN_INITIALIZE, _DYN_IS_INITIALIZED, _DYN_LENGTH, _DYN_NAME, _DYN_PUSH, _DYN_SET_NEXT_PLUGIN, _DYN_SPAN_ID, _DYN_TEARDOWN, _DYN_TRACE_FLAGS, _DYN_TRACE_ID, _DYN__DO_TEARDOWN } from \"../__DynamicConstants\";\r\nimport { createElmNodeData } from \"./DataCacheHelper\";\r\nimport { arrForEach, isFunction } from \"./HelperFuncs\";\r\nimport { STR_CORE, STR_PRIORITY, STR_PROCESS_TELEMETRY } from \"./InternalConstants\";\r\nimport { isValidSpanId, isValidTraceId } from \"./W3cTraceParent\";\r\nvar pluginStateData = createElmNodeData(\"plugin\");\r\nexport function _getPluginState(plugin) {\r\n return pluginStateData.get(plugin, \"state\", {}, true);\r\n}\r\n/**\r\n * Initialize the queue of plugins\r\n * @param plugins - The array of plugins to initialize and setting of the next plugin\r\n * @param config The current config for the instance\r\n * @param core THe current core instance\r\n * @param extensions The extensions\r\n */\r\nexport function initializePlugins(processContext, extensions) {\r\n // Set the next plugin and identified the uninitialized plugins\r\n var initPlugins = [];\r\n var lastPlugin = null;\r\n var proxy = processContext[_DYN_GET_NEXT /* @min:%2egetNext */]();\r\n var pluginState;\r\n while (proxy) {\r\n var thePlugin = proxy[_DYN_GET_PLUGIN /* @min:%2egetPlugin */]();\r\n if (thePlugin) {\r\n if (lastPlugin &&\r\n isFunction(lastPlugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */]) &&\r\n isFunction(thePlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */])) {\r\n // Set this plugin as the next for the previous one\r\n lastPlugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */](thePlugin);\r\n }\r\n var isInitialized = false;\r\n if (isFunction(thePlugin[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */])) {\r\n isInitialized = thePlugin[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */]();\r\n }\r\n else {\r\n pluginState = _getPluginState(thePlugin);\r\n isInitialized = pluginState[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */];\r\n }\r\n if (!isInitialized) {\r\n initPlugins[_DYN_PUSH /* @min:%2epush */](thePlugin);\r\n }\r\n lastPlugin = thePlugin;\r\n proxy = proxy[_DYN_GET_NEXT /* @min:%2egetNext */]();\r\n }\r\n }\r\n // Now initialize the plugins\r\n arrForEach(initPlugins, function (thePlugin) {\r\n var core = processContext[STR_CORE]();\r\n thePlugin[_DYN_INITIALIZE /* @min:%2einitialize */](processContext.getCfg(), core, extensions, processContext[_DYN_GET_NEXT /* @min:%2egetNext */]());\r\n pluginState = _getPluginState(thePlugin);\r\n // Only add the core to the state if the plugin didn't set it (doesn't extent from BaseTelemetryPlugin)\r\n if (!thePlugin[STR_CORE] && !pluginState[STR_CORE]) {\r\n pluginState[STR_CORE] = core;\r\n }\r\n pluginState[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */] = true;\r\n delete pluginState[_DYN_TEARDOWN /* @min:%2eteardown */];\r\n });\r\n}\r\nexport function sortPlugins(plugins) {\r\n // Sort by priority\r\n return plugins.sort(function (extA, extB) {\r\n var result = 0;\r\n if (extB) {\r\n var bHasProcess = isFunction(extB[STR_PROCESS_TELEMETRY]);\r\n if (isFunction(extA[STR_PROCESS_TELEMETRY])) {\r\n result = bHasProcess ? extA[STR_PRIORITY] - extB[STR_PRIORITY] : 1;\r\n }\r\n else if (bHasProcess) {\r\n result = -1;\r\n }\r\n }\r\n else {\r\n result = extA ? 1 : -1;\r\n }\r\n return result;\r\n });\r\n // sort complete\r\n}\r\n/**\r\n * Teardown / Unload helper to perform teardown/unloading operations for the provided components synchronously or asynchronously, this will call any\r\n * _doTeardown() or _doUnload() functions on the provided components to allow them to finish removal.\r\n * @param components - The components you want to unload\r\n * @param unloadCtx - This is the context that should be used during unloading.\r\n * @param unloadState - The details / state of the unload process, it holds details like whether it should be unloaded synchronously or asynchronously and the reason for the unload.\r\n * @param asyncCallback - An optional callback that the plugin must call if it returns true to inform the caller that it has completed any async unload/teardown operations.\r\n * @returns boolean - true if the plugin has or will call asyncCallback, this allows the plugin to perform any asynchronous operations.\r\n */\r\nexport function unloadComponents(components, unloadCtx, unloadState, asyncCallback) {\r\n var idx = 0;\r\n function _doUnload() {\r\n while (idx < components[_DYN_LENGTH /* @min:%2elength */]) {\r\n var component = components[idx++];\r\n if (component) {\r\n var func = component._doUnload || component[_DYN__DO_TEARDOWN /* @min:%2e_doTeardown */];\r\n if (isFunction(func)) {\r\n if (func[_DYN_CALL /* @min:%2ecall */](component, unloadCtx, unloadState, _doUnload) === true) {\r\n return true;\r\n }\r\n }\r\n }\r\n }\r\n }\r\n return _doUnload();\r\n}\r\n/**\r\n * Creates a IDistributedTraceContext which optionally also \"sets\" the value on a parent\r\n * @param parentCtx - An optional parent distributed trace instance\r\n * @returns A new IDistributedTraceContext instance that uses an internal temporary object\r\n */\r\nexport function createDistributedTraceContext(parentCtx) {\r\n var trace = {};\r\n return {\r\n getName: function () {\r\n return trace[_DYN_NAME /* @min:%2ename */];\r\n },\r\n setName: function (newValue) {\r\n parentCtx && parentCtx.setName(newValue);\r\n trace[_DYN_NAME /* @min:%2ename */] = newValue;\r\n },\r\n getTraceId: function () {\r\n return trace[_DYN_TRACE_ID /* @min:%2etraceId */];\r\n },\r\n setTraceId: function (newValue) {\r\n parentCtx && parentCtx.setTraceId(newValue);\r\n if (isValidTraceId(newValue)) {\r\n trace[_DYN_TRACE_ID /* @min:%2etraceId */] = newValue;\r\n }\r\n },\r\n getSpanId: function () {\r\n return trace[_DYN_SPAN_ID /* @min:%2espanId */];\r\n },\r\n setSpanId: function (newValue) {\r\n parentCtx && parentCtx.setSpanId(newValue);\r\n if (isValidSpanId(newValue)) {\r\n trace[_DYN_SPAN_ID /* @min:%2espanId */] = newValue;\r\n }\r\n },\r\n getTraceFlags: function () {\r\n return trace[_DYN_TRACE_FLAGS /* @min:%2etraceFlags */];\r\n },\r\n setTraceFlags: function (newTraceFlags) {\r\n parentCtx && parentCtx.setTraceFlags(newTraceFlags);\r\n trace[_DYN_TRACE_FLAGS /* @min:%2etraceFlags */] = newTraceFlags;\r\n }\r\n };\r\n}\r\n//# sourceMappingURL=TelemetryHelpers.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n\"use strict\";\r\nimport { _DYN_CALL, _DYN_CONFIG, _DYN_CREATE_NEW, _DYN_DIAG_LOG, _DYN_GET_NEXT, _DYN_GET_PLUGIN, _DYN_IDENTIFIER, _DYN_IS_ASYNC, _DYN_IS_INITIALIZED, _DYN_LENGTH, _DYN_LOGGER, _DYN_PROCESS_NEXT, _DYN_PUSH, _DYN_SET_NEXT_PLUGIN, _DYN_TEARDOWN, _DYN_UPDATE } from \"../__DynamicConstants\";\r\nimport { _throwInternal, safeGetLogger } from \"./DiagnosticLogger\";\r\nimport { dumpObj } from \"./EnvUtils\";\r\nimport { arrForEach, isArray, isFunction, isNullOrUndefined, isObject, isUndefined, objExtend, objForEachKey, objFreeze, objKeys, proxyFunctions } from \"./HelperFuncs\";\r\nimport { STR_CORE, STR_DISABLED, STR_EMPTY, STR_EXTENSION_CONFIG, STR_PRIORITY, STR_PROCESS_TELEMETRY } from \"./InternalConstants\";\r\nimport { doPerf } from \"./PerfManager\";\r\nimport { _getPluginState } from \"./TelemetryHelpers\";\r\nvar strTelemetryPluginChain = \"TelemetryPluginChain\";\r\nvar strHasRunFlags = \"_hasRun\";\r\nvar strGetTelCtx = \"_getTelCtx\";\r\nvar _chainId = 0;\r\nfunction _getNextProxyStart(proxy, core, startAt) {\r\n while (proxy) {\r\n if (proxy[_DYN_GET_PLUGIN /* @min:%2egetPlugin */]() === startAt) {\r\n return proxy;\r\n }\r\n proxy = proxy[_DYN_GET_NEXT /* @min:%2egetNext */]();\r\n }\r\n // This wasn't found in the existing chain so create an isolated one with just this plugin\r\n return createTelemetryProxyChain([startAt], core[_DYN_CONFIG /* @min:%2econfig */] || {}, core);\r\n}\r\n/**\r\n * @ignore\r\n * @param telemetryChain\r\n * @param config\r\n * @param core\r\n * @param startAt - Identifies the next plugin to execute, if null there is no \"next\" plugin and if undefined it should assume the start of the chain\r\n * @returns\r\n */\r\nfunction _createInternalContext(telemetryChain, config, core, startAt) {\r\n // We have a special case where we want to start execution from this specific plugin\r\n // or we simply reuse the existing telemetry plugin chain (normal execution case)\r\n var _nextProxy = null; // By Default set as no next plugin\r\n var _onComplete = [];\r\n if (startAt !== null) {\r\n // There is no next element (null) vs not defined (undefined) so use the full chain\r\n _nextProxy = startAt ? _getNextProxyStart(telemetryChain, core, startAt) : telemetryChain;\r\n }\r\n var context = {\r\n _next: _moveNext,\r\n ctx: {\r\n core: function () {\r\n return core;\r\n },\r\n diagLog: function () {\r\n return safeGetLogger(core, config);\r\n },\r\n getCfg: function () {\r\n return config;\r\n },\r\n getExtCfg: _getExtCfg,\r\n getConfig: _getConfig,\r\n hasNext: function () {\r\n return !!_nextProxy;\r\n },\r\n getNext: function () {\r\n return _nextProxy;\r\n },\r\n setNext: function (nextPlugin) {\r\n _nextProxy = nextPlugin;\r\n },\r\n iterate: _iterateChain,\r\n onComplete: _addOnComplete\r\n }\r\n };\r\n function _addOnComplete(onComplete, that) {\r\n var args = [];\r\n for (var _i = 2; _i < arguments.length; _i++) {\r\n args[_i - 2] = arguments[_i];\r\n }\r\n if (onComplete) {\r\n _onComplete[_DYN_PUSH /* @min:%2epush */]({\r\n func: onComplete,\r\n self: !isUndefined(that) ? that : context.ctx,\r\n args: args\r\n });\r\n }\r\n }\r\n function _moveNext() {\r\n var nextProxy = _nextProxy;\r\n // Automatically move to the next plugin\r\n _nextProxy = nextProxy ? nextProxy[_DYN_GET_NEXT /* @min:%2egetNext */]() : null;\r\n if (!nextProxy) {\r\n var onComplete = _onComplete;\r\n if (onComplete && onComplete[_DYN_LENGTH /* @min:%2elength */] > 0) {\r\n arrForEach(onComplete, function (completeDetails) {\r\n try {\r\n completeDetails.func[_DYN_CALL /* @min:%2ecall */](completeDetails.self, completeDetails.args);\r\n }\r\n catch (e) {\r\n _throwInternal(core[_DYN_LOGGER /* @min:%2elogger */], 2 /* eLoggingSeverity.WARNING */, 73 /* _eInternalMessageId.PluginException */, \"Unexpected Exception during onComplete - \" + dumpObj(e));\r\n }\r\n });\r\n _onComplete = [];\r\n }\r\n }\r\n return nextProxy;\r\n }\r\n function _getExtCfg(identifier, defaultValue, mergeDefault) {\r\n if (defaultValue === void 0) { defaultValue = {}; }\r\n if (mergeDefault === void 0) { mergeDefault = 0 /* GetExtCfgMergeType.None */; }\r\n var theConfig;\r\n if (config) {\r\n var extConfig = config[STR_EXTENSION_CONFIG /* @min:%2eextensionConfig */];\r\n if (extConfig && identifier) {\r\n theConfig = extConfig[identifier];\r\n }\r\n }\r\n if (!theConfig) {\r\n // Just use the defaults\r\n theConfig = defaultValue;\r\n }\r\n else if (isObject(defaultValue)) {\r\n if (mergeDefault !== 0 /* GetExtCfgMergeType.None */) {\r\n // Merge the defaults and configured values\r\n var newConfig_1 = objExtend(true, defaultValue, theConfig);\r\n if (config && mergeDefault === 2 /* GetExtCfgMergeType.MergeDefaultFromRootOrDefault */) {\r\n // Enumerate over the defaultValues and if not already populated attempt to\r\n // find a value from the root config\r\n objForEachKey(defaultValue, function (field) {\r\n // for each unspecified field, set the default value\r\n if (isNullOrUndefined(newConfig_1[field])) {\r\n var cfgValue = config[field];\r\n if (!isNullOrUndefined(cfgValue)) {\r\n newConfig_1[field] = cfgValue;\r\n }\r\n }\r\n });\r\n }\r\n theConfig = newConfig_1;\r\n }\r\n }\r\n return theConfig;\r\n }\r\n function _getConfig(identifier, field, defaultValue) {\r\n if (defaultValue === void 0) { defaultValue = false; }\r\n var theValue;\r\n var extConfig = _getExtCfg(identifier, null);\r\n if (extConfig && !isNullOrUndefined(extConfig[field])) {\r\n theValue = extConfig[field];\r\n }\r\n else if (config && !isNullOrUndefined(config[field])) {\r\n theValue = config[field];\r\n }\r\n return !isNullOrUndefined(theValue) ? theValue : defaultValue;\r\n }\r\n function _iterateChain(cb) {\r\n // Keep processing until we reach the end of the chain\r\n var nextPlugin;\r\n while (!!(nextPlugin = context._next())) {\r\n var plugin = nextPlugin[_DYN_GET_PLUGIN /* @min:%2egetPlugin */]();\r\n if (plugin) {\r\n // callback with the current on\r\n cb(plugin);\r\n }\r\n }\r\n }\r\n return context;\r\n}\r\n/**\r\n * Creates a new Telemetry Item context with the current config, core and plugin execution chain\r\n * @param plugins - The plugin instances that will be executed\r\n * @param config - The current config\r\n * @param core - The current core instance\r\n * @param startAt - Identifies the next plugin to execute, if null there is no \"next\" plugin and if undefined it should assume the start of the chain\r\n */\r\nexport function createProcessTelemetryContext(telemetryChain, config, core, startAt) {\r\n var internalContext = _createInternalContext(telemetryChain, config, core, startAt);\r\n var context = internalContext.ctx;\r\n function _processNext(env) {\r\n var nextPlugin = internalContext._next();\r\n // Run the next plugin which will call \"processNext()\"\r\n nextPlugin && nextPlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */](env, context);\r\n return !nextPlugin;\r\n }\r\n function _createNew(plugins, startAt) {\r\n if (plugins === void 0) { plugins = null; }\r\n if (isArray(plugins)) {\r\n plugins = createTelemetryProxyChain(plugins, config, core, startAt);\r\n }\r\n return createProcessTelemetryContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), config, core, startAt);\r\n }\r\n context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;\r\n context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;\r\n return context;\r\n}\r\n/**\r\n * Creates a new Telemetry Item context with the current config, core and plugin execution chain for handling the unloading of the chain\r\n * @param plugins - The plugin instances that will be executed\r\n * @param config - The current config\r\n * @param core - The current core instance\r\n * @param startAt - Identifies the next plugin to execute, if null there is no \"next\" plugin and if undefined it should assume the start of the chain\r\n */\r\nexport function createProcessTelemetryUnloadContext(telemetryChain, core, startAt) {\r\n var config = core[_DYN_CONFIG /* @min:%2econfig */] || {};\r\n var internalContext = _createInternalContext(telemetryChain, config, core, startAt);\r\n var context = internalContext.ctx;\r\n function _processNext(unloadState) {\r\n var nextPlugin = internalContext._next();\r\n nextPlugin && nextPlugin.unload(context, unloadState);\r\n return !nextPlugin;\r\n }\r\n function _createNew(plugins, startAt) {\r\n if (plugins === void 0) { plugins = null; }\r\n if (isArray(plugins)) {\r\n plugins = createTelemetryProxyChain(plugins, config, core, startAt);\r\n }\r\n return createProcessTelemetryUnloadContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), core, startAt);\r\n }\r\n context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;\r\n context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;\r\n return context;\r\n}\r\n/**\r\n * Creates a new Telemetry Item context with the current config, core and plugin execution chain for updating the configuration\r\n * @param plugins - The plugin instances that will be executed\r\n * @param config - The current config\r\n * @param core - The current core instance\r\n * @param startAt - Identifies the next plugin to execute, if null there is no \"next\" plugin and if undefined it should assume the start of the chain\r\n */\r\nexport function createProcessTelemetryUpdateContext(telemetryChain, core, startAt) {\r\n var config = core[_DYN_CONFIG /* @min:%2econfig */] || {};\r\n var internalContext = _createInternalContext(telemetryChain, config, core, startAt);\r\n var context = internalContext.ctx;\r\n function _processNext(updateState) {\r\n return context.iterate(function (plugin) {\r\n if (isFunction(plugin[_DYN_UPDATE /* @min:%2eupdate */])) {\r\n plugin[_DYN_UPDATE /* @min:%2eupdate */](context, updateState);\r\n }\r\n });\r\n }\r\n function _createNew(plugins, startAt) {\r\n if (plugins === void 0) { plugins = null; }\r\n if (isArray(plugins)) {\r\n plugins = createTelemetryProxyChain(plugins, config, core, startAt);\r\n }\r\n return createProcessTelemetryUpdateContext(plugins || context[_DYN_GET_NEXT /* @min:%2egetNext */](), core, startAt);\r\n }\r\n context[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = _processNext;\r\n context[_DYN_CREATE_NEW /* @min:%2ecreateNew */] = _createNew;\r\n return context;\r\n}\r\n/**\r\n * Creates an execution chain from the array of plugins\r\n * @param plugins - The array of plugins that will be executed in this order\r\n * @param defItemCtx - The default execution context to use when no telemetry context is passed to processTelemetry(), this\r\n * should be for legacy plugins only. Currently, only used for passing the current core instance and to provide better error\r\n * reporting (hasRun) when errors occur.\r\n */\r\nexport function createTelemetryProxyChain(plugins, config, core, startAt) {\r\n var firstProxy = null;\r\n var add = startAt ? false : true;\r\n if (isArray(plugins) && plugins[_DYN_LENGTH /* @min:%2elength */] > 0) {\r\n // Create the proxies and wire up the next plugin chain\r\n var lastProxy_1 = null;\r\n arrForEach(plugins, function (thePlugin) {\r\n if (!add && startAt === thePlugin) {\r\n add = true;\r\n }\r\n if (add && thePlugin && isFunction(thePlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */])) {\r\n // Only add plugins that are processors\r\n var newProxy = createTelemetryPluginProxy(thePlugin, config, core);\r\n if (!firstProxy) {\r\n firstProxy = newProxy;\r\n }\r\n if (lastProxy_1) {\r\n // Set this new proxy as the next for the previous one\r\n lastProxy_1._setNext(newProxy);\r\n }\r\n lastProxy_1 = newProxy;\r\n }\r\n });\r\n }\r\n if (startAt && !firstProxy) {\r\n // Special case where the \"startAt\" was not in the original list of plugins\r\n return createTelemetryProxyChain([startAt], config, core);\r\n }\r\n return firstProxy;\r\n}\r\n/**\r\n * Create the processing telemetry proxy instance, the proxy is used to abstract the current plugin to allow monitoring and\r\n * execution plugins while passing around the dynamic execution state (IProcessTelemetryContext), the proxy instance no longer\r\n * contains any execution state and can be reused between requests (this was not the case for 2.7.2 and earlier with the\r\n * TelemetryPluginChain class).\r\n * @param plugin - The plugin instance to proxy\r\n * @param config - The default execution context to use when no telemetry context is passed to processTelemetry(), this\r\n * should be for legacy plugins only. Currently, only used for passing the current core instance and to provide better error\r\n * reporting (hasRun) when errors occur.\r\n * @returns\r\n */\r\nexport function createTelemetryPluginProxy(plugin, config, core) {\r\n var nextProxy = null;\r\n var hasProcessTelemetry = isFunction(plugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */]);\r\n var hasSetNext = isFunction(plugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */]);\r\n var chainId;\r\n if (plugin) {\r\n chainId = plugin[_DYN_IDENTIFIER /* @min:%2eidentifier */] + \"-\" + plugin[STR_PRIORITY /* @min:%2epriority */] + \"-\" + _chainId++;\r\n }\r\n else {\r\n chainId = \"Unknown-0-\" + _chainId++;\r\n }\r\n var proxyChain = {\r\n getPlugin: function () {\r\n return plugin;\r\n },\r\n getNext: function () {\r\n return nextProxy;\r\n },\r\n processTelemetry: _processTelemetry,\r\n unload: _unloadPlugin,\r\n update: _updatePlugin,\r\n _id: chainId,\r\n _setNext: function (nextPlugin) {\r\n nextProxy = nextPlugin;\r\n }\r\n };\r\n function _getTelCtx() {\r\n var itemCtx;\r\n // Looks like a plugin didn't pass the (optional) context, so create a new one\r\n if (plugin && isFunction(plugin[strGetTelCtx])) {\r\n // This plugin extends from the BaseTelemetryPlugin so lets use it\r\n itemCtx = plugin[strGetTelCtx]();\r\n }\r\n if (!itemCtx) {\r\n // Create a temporary one\r\n itemCtx = createProcessTelemetryContext(proxyChain, config, core);\r\n }\r\n return itemCtx;\r\n }\r\n function _processChain(itemCtx, processPluginFn, name, details, isAsync) {\r\n var hasRun = false;\r\n var identifier = plugin ? plugin[_DYN_IDENTIFIER /* @min:%2eidentifier */] : strTelemetryPluginChain;\r\n var hasRunContext = itemCtx[strHasRunFlags];\r\n if (!hasRunContext) {\r\n // Assign and populate\r\n hasRunContext = itemCtx[strHasRunFlags] = {};\r\n }\r\n // Ensure that we keep the context in sync\r\n itemCtx.setNext(nextProxy);\r\n if (plugin) {\r\n doPerf(itemCtx[STR_CORE /* @min:%2ecore */](), function () { return identifier + \":\" + name; }, function () {\r\n // Mark this component as having run\r\n hasRunContext[chainId] = true;\r\n try {\r\n // Set a flag on the next plugin so we know if it was attempted to be executed\r\n var nextId = nextProxy ? nextProxy._id : STR_EMPTY;\r\n if (nextId) {\r\n hasRunContext[nextId] = false;\r\n }\r\n hasRun = processPluginFn(itemCtx);\r\n }\r\n catch (error) {\r\n var hasNextRun = nextProxy ? hasRunContext[nextProxy._id] : true;\r\n if (hasNextRun) {\r\n // The next plugin after us has already run so set this one as complete\r\n hasRun = true;\r\n }\r\n if (!nextProxy || !hasNextRun) {\r\n // Either we have no next plugin or the current one did not attempt to call the next plugin\r\n // Which means the current one is the root of the failure so log/report this failure\r\n _throwInternal(itemCtx[_DYN_DIAG_LOG /* @min:%2ediagLog */](), 1 /* eLoggingSeverity.CRITICAL */, 73 /* _eInternalMessageId.PluginException */, \"Plugin [\" + identifier + \"] failed during \" + name + \" - \" + dumpObj(error) + \", run flags: \" + dumpObj(hasRunContext));\r\n }\r\n }\r\n }, details, isAsync);\r\n }\r\n return hasRun;\r\n }\r\n function _processTelemetry(env, itemCtx) {\r\n itemCtx = itemCtx || _getTelCtx();\r\n function _callProcessTelemetry(itemCtx) {\r\n if (!plugin || !hasProcessTelemetry) {\r\n return false;\r\n }\r\n var pluginState = _getPluginState(plugin);\r\n if (pluginState[_DYN_TEARDOWN /* @min:%2eteardown */] || pluginState[STR_DISABLED]) {\r\n return false;\r\n }\r\n // Ensure that we keep the context in sync (for processNext()), just in case a plugin\r\n // doesn't calls processTelemetry() instead of itemContext.processNext() or some\r\n // other form of error occurred\r\n if (hasSetNext) {\r\n // Backward compatibility setting the next plugin on the instance\r\n plugin[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */](nextProxy);\r\n }\r\n plugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */](env, itemCtx);\r\n // Process Telemetry is expected to call itemCtx.processNext() or nextPlugin.processTelemetry()\r\n return true;\r\n }\r\n if (!_processChain(itemCtx, _callProcessTelemetry, \"processTelemetry\", function () { return ({ item: env }); }, !(env.sync))) {\r\n // The underlying plugin is either not defined, not enabled or does not have a processTelemetry implementation\r\n // so we still want the next plugin to be executed.\r\n itemCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](env);\r\n }\r\n }\r\n function _unloadPlugin(unloadCtx, unloadState) {\r\n function _callTeardown() {\r\n // Setting default of hasRun as false so the proxyProcessFn() is called as teardown() doesn't have to exist or call unloadNext().\r\n var hasRun = false;\r\n if (plugin) {\r\n var pluginState = _getPluginState(plugin);\r\n var pluginCore = plugin[STR_CORE] || pluginState[STR_CORE /* @min:%2ecore */];\r\n // Only teardown the plugin if it was initialized by the current core (i.e. It's not a shared plugin)\r\n if (plugin && (!pluginCore || pluginCore === unloadCtx.core()) && !pluginState[_DYN_TEARDOWN /* @min:%2eteardown */]) {\r\n // Handle plugins that don't extend from the BaseTelemetryPlugin\r\n pluginState[STR_CORE /* @min:%2ecore */] = null;\r\n pluginState[_DYN_TEARDOWN /* @min:%2eteardown */] = true;\r\n pluginState[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */] = false;\r\n if (plugin[_DYN_TEARDOWN /* @min:%2eteardown */] && plugin[_DYN_TEARDOWN /* @min:%2eteardown */](unloadCtx, unloadState) === true) {\r\n // plugin told us that it was going to (or has) call unloadCtx.processNext()\r\n hasRun = true;\r\n }\r\n }\r\n }\r\n return hasRun;\r\n }\r\n if (!_processChain(unloadCtx, _callTeardown, \"unload\", function () { }, unloadState[_DYN_IS_ASYNC /* @min:%2eisAsync */])) {\r\n // Only called if we hasRun was not true\r\n unloadCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](unloadState);\r\n }\r\n }\r\n function _updatePlugin(updateCtx, updateState) {\r\n function _callUpdate() {\r\n // Setting default of hasRun as false so the proxyProcessFn() is called as teardown() doesn't have to exist or call unloadNext().\r\n var hasRun = false;\r\n if (plugin) {\r\n var pluginState = _getPluginState(plugin);\r\n var pluginCore = plugin[STR_CORE] || pluginState[STR_CORE /* @min:%2ecore */];\r\n // Only update the plugin if it was initialized by the current core (i.e. It's not a shared plugin)\r\n if (plugin && (!pluginCore || pluginCore === updateCtx.core()) && !pluginState[_DYN_TEARDOWN /* @min:%2eteardown */]) {\r\n if (plugin[_DYN_UPDATE /* @min:%2eupdate */] && plugin[_DYN_UPDATE /* @min:%2eupdate */](updateCtx, updateState) === true) {\r\n // plugin told us that it was going to (or has) call unloadCtx.processNext()\r\n hasRun = true;\r\n }\r\n }\r\n }\r\n return hasRun;\r\n }\r\n if (!_processChain(updateCtx, _callUpdate, \"update\", function () { }, false)) {\r\n // Only called if we hasRun was not true\r\n updateCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](updateState);\r\n }\r\n }\r\n return objFreeze(proxyChain);\r\n}\r\n/**\r\n * This class will be removed!\r\n * @deprecated use createProcessTelemetryContext() instead\r\n */\r\nvar ProcessTelemetryContext = /** @class */ (function () {\r\n /**\r\n * Creates a new Telemetry Item context with the current config, core and plugin execution chain\r\n * @param plugins - The plugin instances that will be executed\r\n * @param config - The current config\r\n * @param core - The current core instance\r\n */\r\n function ProcessTelemetryContext(pluginChain, config, core, startAt) {\r\n var _self = this;\r\n var context = createProcessTelemetryContext(pluginChain, config, core, startAt);\r\n // Proxy all functions of the context to this object\r\n proxyFunctions(_self, context, objKeys(context));\r\n }\r\n return ProcessTelemetryContext;\r\n}());\r\nexport { ProcessTelemetryContext };\r\n//# sourceMappingURL=ProcessTelemetryContext.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\nimport { _DYN_DIAG_LOG, _DYN_PUSH } from \"../__DynamicConstants\";\r\nimport { _throwInternal } from \"./DiagnosticLogger\";\r\nimport { dumpObj } from \"./EnvUtils\";\r\nimport { arrForEach } from \"./HelperFuncs\";\r\nexport function createUnloadHandlerContainer() {\r\n var handlers = [];\r\n function _addHandler(handler) {\r\n if (handler) {\r\n handlers[_DYN_PUSH /* @min:%2epush */](handler);\r\n }\r\n }\r\n function _runHandlers(unloadCtx, unloadState) {\r\n arrForEach(handlers, function (handler) {\r\n try {\r\n handler(unloadCtx, unloadState);\r\n }\r\n catch (e) {\r\n _throwInternal(unloadCtx[_DYN_DIAG_LOG /* @min:%2ediagLog */](), 2 /* eLoggingSeverity.WARNING */, 73 /* _eInternalMessageId.PluginException */, \"Unexpected error calling unload handler - \" + dumpObj(e));\r\n }\r\n });\r\n handlers = [];\r\n }\r\n return {\r\n add: _addHandler,\r\n run: _runHandlers\r\n };\r\n}\r\n//# sourceMappingURL=UnloadHandlerContainer.js.map","/*\n * Application Insights JavaScript SDK - Core, 2.8.14\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n\r\n\r\n\"use strict\";\r\nimport dynamicProto from \"@microsoft/dynamicproto-js\";\r\nimport { _DYN_CREATE_NEW, _DYN_DIAG_LOG, _DYN_GET_NEXT, _DYN_GET_PROCESS_TEL_CONT0, _DYN_INITIALIZE, _DYN_IS_ASYNC, _DYN_IS_INITIALIZED, _DYN_PROCESS_NEXT, _DYN_PUSH, _DYN_SET_NEXT_PLUGIN, _DYN_TEARDOWN, _DYN_UPDATE, _DYN__DO_TEARDOWN } from \"../__DynamicConstants\";\r\nimport { arrForEach, isArray, isFunction, isNullOrUndefined, proxyFunctionAs, setValue } from \"./HelperFuncs\";\r\nimport { STR_CORE, STR_EXTENSION_CONFIG, STR_PROCESS_TELEMETRY } from \"./InternalConstants\";\r\nimport { createProcessTelemetryContext, createProcessTelemetryUnloadContext, createProcessTelemetryUpdateContext } from \"./ProcessTelemetryContext\";\r\nimport { createUnloadHandlerContainer } from \"./UnloadHandlerContainer\";\r\nvar strGetPlugin = \"getPlugin\";\r\n/**\r\n * BaseTelemetryPlugin provides a basic implementation of the ITelemetryPlugin interface so that plugins\r\n * can avoid implementation the same set of boiler plate code as well as provide a base\r\n * implementation so that new default implementations can be added without breaking all plugins.\r\n */\r\nvar BaseTelemetryPlugin = /** @class */ (function () {\r\n function BaseTelemetryPlugin() {\r\n var _self = this; // Setting _self here as it's used outside of the dynamicProto as well\r\n // NOTE!: DON'T set default values here, instead set them in the _initDefaults() function as it is also called during teardown()\r\n var _isinitialized;\r\n var _rootCtx; // Used as the root context, holding the current config and initialized core\r\n var _nextPlugin; // Used for backward compatibility where plugins don't call the main pipeline\r\n var _unloadHandlerContainer;\r\n var _hooks;\r\n _initDefaults();\r\n dynamicProto(BaseTelemetryPlugin, _self, function (_self) {\r\n _self[_DYN_INITIALIZE /* @min:%2einitialize */] = function (config, core, extensions, pluginChain) {\r\n _setDefaults(config, core, pluginChain);\r\n _isinitialized = true;\r\n };\r\n _self[_DYN_TEARDOWN /* @min:%2eteardown */] = function (unloadCtx, unloadState) {\r\n var _a;\r\n // If this plugin has already been torn down (not operational) or is not initialized (core is not set)\r\n // or the core being used for unload was not the same core used for initialization.\r\n var core = _self[STR_CORE /* @min:%2ecore */];\r\n if (!core || (unloadCtx && core !== unloadCtx[STR_CORE /* @min:%2ecore */]())) {\r\n // Do Nothing as either the plugin is not initialized or was not initialized by the current core\r\n return;\r\n }\r\n var result;\r\n var unloadDone = false;\r\n var theUnloadCtx = unloadCtx || createProcessTelemetryUnloadContext(null, core, _nextPlugin && _nextPlugin[strGetPlugin] ? _nextPlugin[strGetPlugin]() : _nextPlugin);\r\n var theUnloadState = unloadState || (_a = {\r\n reason: 0 /* TelemetryUnloadReason.ManualTeardown */\r\n },\r\n _a[_DYN_IS_ASYNC /* @min:isAsync */] = false,\r\n _a);\r\n function _unloadCallback() {\r\n if (!unloadDone) {\r\n unloadDone = true;\r\n _unloadHandlerContainer.run(theUnloadCtx, unloadState);\r\n var oldHooks = _hooks;\r\n _hooks = [];\r\n // Remove all instrumentation hooks\r\n arrForEach(oldHooks, function (fn) {\r\n fn.rm();\r\n });\r\n if (result === true) {\r\n theUnloadCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](theUnloadState);\r\n }\r\n _initDefaults();\r\n }\r\n }\r\n if (!_self[_DYN__DO_TEARDOWN /* @min:%2e_doTeardown */] || _self[_DYN__DO_TEARDOWN /* @min:%2e_doTeardown */](theUnloadCtx, theUnloadState, _unloadCallback) !== true) {\r\n _unloadCallback();\r\n }\r\n else {\r\n // Tell the caller that we will be calling processNext()\r\n result = true;\r\n }\r\n return result;\r\n };\r\n _self[_DYN_UPDATE /* @min:%2eupdate */] = function (updateCtx, updateState) {\r\n // If this plugin has already been torn down (not operational) or is not initialized (core is not set)\r\n // or the core being used for unload was not the same core used for initialization.\r\n var core = _self[STR_CORE /* @min:%2ecore */];\r\n if (!core || (updateCtx && core !== updateCtx[STR_CORE /* @min:%2ecore */]())) {\r\n // Do Nothing\r\n return;\r\n }\r\n var result;\r\n var updateDone = false;\r\n var theUpdateCtx = updateCtx || createProcessTelemetryUpdateContext(null, core, _nextPlugin && _nextPlugin[strGetPlugin] ? _nextPlugin[strGetPlugin]() : _nextPlugin);\r\n var theUpdateState = updateState || {\r\n reason: 0 /* TelemetryUpdateReason.Unknown */\r\n };\r\n function _updateCallback() {\r\n if (!updateDone) {\r\n updateDone = true;\r\n _setDefaults(theUpdateCtx.getCfg(), theUpdateCtx.core(), theUpdateCtx[_DYN_GET_NEXT /* @min:%2egetNext */]());\r\n }\r\n }\r\n if (!_self._doUpdate || _self._doUpdate(theUpdateCtx, theUpdateState, _updateCallback) !== true) {\r\n _updateCallback();\r\n }\r\n else {\r\n result = true;\r\n }\r\n return result;\r\n };\r\n _self._addHook = function (hooks) {\r\n if (hooks) {\r\n if (isArray(hooks)) {\r\n _hooks = _hooks.concat(hooks);\r\n }\r\n else {\r\n _hooks[_DYN_PUSH /* @min:%2epush */](hooks);\r\n }\r\n }\r\n };\r\n proxyFunctionAs(_self, \"_addUnloadCb\", function () { return _unloadHandlerContainer; }, \"add\");\r\n });\r\n // These are added after the dynamicProto so that are not moved to the prototype\r\n _self[_DYN_DIAG_LOG /* @min:%2ediagLog */] = function (itemCtx) {\r\n return _getTelCtx(itemCtx)[_DYN_DIAG_LOG /* @min:%2ediagLog */]();\r\n };\r\n _self[_DYN_IS_INITIALIZED /* @min:%2eisInitialized */] = function () {\r\n return _isinitialized;\r\n };\r\n _self.setInitialized = function (isInitialized) {\r\n _isinitialized = isInitialized;\r\n };\r\n // _self.getNextPlugin = () => DO NOT IMPLEMENT\r\n // Sub-classes of this base class *should* not be relying on this value and instead\r\n // should use processNext() function. If you require access to the plugin use the\r\n // IProcessTelemetryContext.getNext().getPlugin() while in the pipeline, Note getNext() may return null.\r\n _self[_DYN_SET_NEXT_PLUGIN /* @min:%2esetNextPlugin */] = function (next) {\r\n _nextPlugin = next;\r\n };\r\n _self[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */] = function (env, itemCtx) {\r\n if (itemCtx) {\r\n // Normal core execution sequence\r\n itemCtx[_DYN_PROCESS_NEXT /* @min:%2eprocessNext */](env);\r\n }\r\n else if (_nextPlugin && isFunction(_nextPlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */])) {\r\n // Looks like backward compatibility or out of band processing. And as it looks\r\n // like a ITelemetryPlugin or ITelemetryPluginChain, just call processTelemetry\r\n _nextPlugin[STR_PROCESS_TELEMETRY /* @min:%2eprocessTelemetry */](env, null);\r\n }\r\n };\r\n _self._getTelCtx = _getTelCtx;\r\n function _getTelCtx(currentCtx) {\r\n if (currentCtx === void 0) { currentCtx = null; }\r\n var itemCtx = currentCtx;\r\n if (!itemCtx) {\r\n var rootCtx = _rootCtx || createProcessTelemetryContext(null, {}, _self[STR_CORE /* @min:%2ecore */]);\r\n // tslint:disable-next-line: prefer-conditional-expression\r\n if (_nextPlugin && _nextPlugin[strGetPlugin]) {\r\n // Looks like a chain object\r\n itemCtx = rootCtx[_DYN_CREATE_NEW /* @min:%2ecreateNew */](null, _nextPlugin[strGetPlugin]);\r\n }\r\n else {\r\n itemCtx = rootCtx[_DYN_CREATE_NEW /* @min:%2ecreateNew */](null, _nextPlugin);\r\n }\r\n }\r\n return itemCtx;\r\n }\r\n function _setDefaults(config, core, pluginChain) {\r\n if (config) {\r\n // Make sure the extensionConfig exists\r\n setValue(config, STR_EXTENSION_CONFIG, [], null, isNullOrUndefined);\r\n }\r\n if (!pluginChain && core) {\r\n // Get the first plugin from the core\r\n pluginChain = core[_DYN_GET_PROCESS_TEL_CONT0 /* @min:%2egetProcessTelContext */]()[_DYN_GET_NEXT /* @min:%2egetNext */]();\r\n }\r\n var nextPlugin = _nextPlugin;\r\n if (_nextPlugin && _nextPlugin[strGetPlugin]) {\r\n // If it looks like a proxy/chain then get the plugin\r\n nextPlugin = _nextPlugin[strGetPlugin]();\r\n }\r\n // Support legacy plugins where core was defined as a property\r\n _self[STR_CORE /* @min:%2ecore */] = core;\r\n _rootCtx = createProcessTelemetryContext(pluginChain, config, core, nextPlugin);\r\n }\r\n function _initDefaults() {\r\n _isinitialized = false;\r\n _self[STR_CORE /* @min:%2ecore */] = null;\r\n _rootCtx = null;\r\n _nextPlugin = null;\r\n _hooks = [];\r\n _unloadHandlerContainer = createUnloadHandlerContainer();\r\n }\r\n }\r\n// Removed Stub for BaseTelemetryPlugin.prototype.initialize.\r\n// Removed Stub for BaseTelemetryPlugin.prototype.teardown.\r\n// Removed Stub for BaseTelemetryPlugin.prototype.update.\r\n// Removed Stub for BaseTelemetryPlugin.prototype._addUnloadCb.\r\n// Removed Stub for BaseTelemetryPlugin.prototype._addHook.\r\n // This is a workaround for an IE8 bug when using dynamicProto() with classes that don't have any\n // non-dynamic functions or static properties/functions when using uglify-js to minify the resulting code.\n // this will be removed when ES3 support is dropped.\n BaseTelemetryPlugin.__ieDyn=1;\n\n return BaseTelemetryPlugin;\r\n}());\r\nexport { BaseTelemetryPlugin };\r\n//# sourceMappingURL=BaseTelemetryPlugin.js.map","/*\n * Application Insights JavaScript SDK - React Plugin, 3.4.0\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\n/**\r\n* ReactPlugin.ts\r\n* @copyright Microsoft 2019\r\n*/\r\nimport { __extendsFn as __extends } from \"@microsoft/applicationinsights-shims\";\r\nimport dynamicProto from \"@microsoft/dynamicproto-js\";\r\nimport { BaseTelemetryPlugin, _throwInternal, arrForEach, isFunction, objDefineAccessors, proxyFunctions, safeGetCookieMgr } from \"@microsoft/applicationinsights-core-js\";\r\nvar ReactPlugin = /** @class */ (function (_super) {\r\n __extends(ReactPlugin, _super);\r\n function ReactPlugin() {\r\n var _this = _super.call(this) || this;\r\n _this.priority = 185;\r\n _this.identifier = 'ReactPlugin';\r\n var _analyticsPlugin;\r\n var _extensionConfig;\r\n var _unlisten;\r\n var _pageViewTimer;\r\n dynamicProto(ReactPlugin, _this, function (_self, _base) {\r\n _initDefaults();\r\n _self.initialize = function (config, core, extensions, pluginChain) {\r\n _super.prototype.initialize.call(_this, config, core, extensions, pluginChain);\r\n _extensionConfig =\r\n config.extensionConfig && config.extensionConfig[_self.identifier]\r\n ? config.extensionConfig[_self.identifier]\r\n : { history: null };\r\n arrForEach(extensions, function (ext) {\r\n var identifier = ext.identifier;\r\n if (identifier === 'ApplicationInsightsAnalytics') {\r\n _analyticsPlugin = ext;\r\n }\r\n });\r\n if (_extensionConfig.history) {\r\n _addHistoryListener(_extensionConfig.history);\r\n var pageViewTelemetry = {\r\n uri: _extensionConfig.history.location.pathname\r\n };\r\n _self.trackPageView(pageViewTelemetry);\r\n }\r\n };\r\n _self.getCookieMgr = function () {\r\n return safeGetCookieMgr(_self.core);\r\n };\r\n _self.getAppInsights = _getAnalytics;\r\n _self.processTelemetry = function (event, itemCtx) {\r\n _self.processNext(event, itemCtx);\r\n };\r\n _self._doTeardown = function (unloadCtx, unloadState, asyncCallback) {\r\n if (isFunction(_unlisten)) {\r\n _unlisten();\r\n }\r\n if (_pageViewTimer) {\r\n clearTimeout(_pageViewTimer);\r\n }\r\n _initDefaults();\r\n };\r\n // Proxy the analytics functions\r\n proxyFunctions(_self, _getAnalytics, [\r\n \"trackMetric\",\r\n \"trackPageView\",\r\n \"trackEvent\",\r\n \"trackException\",\r\n \"trackTrace\",\r\n ]);\r\n function _initDefaults() {\r\n _analyticsPlugin = null;\r\n _extensionConfig = null;\r\n _unlisten = null;\r\n _pageViewTimer = null;\r\n }\r\n function _getAnalytics() {\r\n if (!_analyticsPlugin) {\r\n _throwInternal(_self.diagLog(), 1 /* eLoggingSeverity.CRITICAL */, 64 /* _eInternalMessageId.TelemetryInitializerFailed */, \"Analytics plugin is not available, React plugin telemetry will not be sent: \");\r\n }\r\n return _analyticsPlugin;\r\n }\r\n function _addHistoryListener(history) {\r\n var locationListener = function (arg) {\r\n // v4 of the history API passes \"location\" as the first argument, while v5 passes an object that contains location and action \r\n var locn = null;\r\n if (\"location\" in arg) {\r\n // Looks like v5\r\n locn = arg[\"location\"];\r\n }\r\n else {\r\n locn = arg;\r\n }\r\n // Timeout to ensure any changes to the DOM made by route changes get included in pageView telemetry\r\n _pageViewTimer = setTimeout(function () {\r\n _pageViewTimer = null;\r\n var pageViewTelemetry = { uri: locn.pathname };\r\n _self.trackPageView(pageViewTelemetry);\r\n }, 500);\r\n };\r\n _unlisten = history.listen(locationListener);\r\n }\r\n objDefineAccessors(_self, \"_extensionConfig\", function () { return _extensionConfig; });\r\n });\r\n return _this;\r\n }\r\n// Removed Stub for ReactPlugin.prototype.initialize.\r\n// Removed Stub for ReactPlugin.prototype.getCookieMgr.\r\n// Removed Stub for ReactPlugin.prototype.getAppInsights.\r\n// Removed Stub for ReactPlugin.prototype.processTelemetry.\r\n// Removed Stub for ReactPlugin.prototype.trackMetric.\r\n// Removed Stub for ReactPlugin.prototype.trackPageView.\r\n// Removed Stub for ReactPlugin.prototype.trackEvent.\r\n// Removed Stub for ReactPlugin.prototype.trackException.\r\n// Removed Stub for ReactPlugin.prototype.trackTrace.\r\n // This is a workaround for an IE8 bug when using dynamicProto() with classes that don't have any\n // non-dynamic functions or static properties/functions when using uglify-js to minify the resulting code.\n // this will be removed when ES3 support is dropped.\n ReactPlugin.__ieDyn=1;\n\n return ReactPlugin;\r\n}(BaseTelemetryPlugin));\r\nexport default ReactPlugin;\r\n//# sourceMappingURL=ReactPlugin.js.map","/*\n * Application Insights JavaScript SDK - React Plugin, 3.4.0\n * Copyright (c) Microsoft and contributors. All rights reserved.\n */\nimport { createContext, useContext } from \"react\";\r\nvar AppInsightsContext = createContext(undefined);\r\nvar useAppInsightsContext = function () { return useContext(AppInsightsContext); };\r\nexport { AppInsightsContext, useAppInsightsContext };\r\n//# sourceMappingURL=AppInsightsContext.js.map","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\nvar ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';\n\nmodule.exports = ReactPropTypesSecret;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\nvar ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');\n\nfunction emptyFunction() {}\nfunction emptyFunctionWithReset() {}\nemptyFunctionWithReset.resetWarningCache = emptyFunction;\n\nmodule.exports = function() {\n function shim(props, propName, componentName, location, propFullName, secret) {\n if (secret === ReactPropTypesSecret) {\n // It is still safe when called from React.\n return;\n }\n var err = new Error(\n 'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +\n 'Use PropTypes.checkPropTypes() to call them. ' +\n 'Read more at http://fb.me/use-check-prop-types'\n );\n err.name = 'Invariant Violation';\n throw err;\n };\n shim.isRequired = shim;\n function getShim() {\n return shim;\n };\n // Important!\n // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.\n var ReactPropTypes = {\n array: shim,\n bigint: shim,\n bool: shim,\n func: shim,\n number: shim,\n object: shim,\n string: shim,\n symbol: shim,\n\n any: shim,\n arrayOf: getShim,\n element: shim,\n elementType: shim,\n instanceOf: getShim,\n node: shim,\n objectOf: getShim,\n oneOf: getShim,\n oneOfType: getShim,\n shape: getShim,\n exact: getShim,\n\n checkPropTypes: emptyFunctionWithReset,\n resetWarningCache: emptyFunction\n };\n\n ReactPropTypes.PropTypes = ReactPropTypes;\n\n return ReactPropTypes;\n};\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\nif (process.env.NODE_ENV !== 'production') {\n var ReactIs = require('react-is');\n\n // By explicitly using `prop-types` you are opting into new development behavior.\n // http://fb.me/prop-types-in-prod\n var throwOnDirectAccess = true;\n module.exports = require('./factoryWithTypeCheckers')(ReactIs.isElement, throwOnDirectAccess);\n} else {\n // By explicitly using `prop-types` you are opting into new production behavior.\n // http://fb.me/prop-types-in-prod\n module.exports = require('./factoryWithThrowingShims')();\n}\n","export default function warn(s) {\n console.warn('[react-ga]', s);\n}","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nimport React, { Component } from 'react';\nimport PropTypes from 'prop-types';\nimport warn from '../utils/console/warn';\nvar NEWTAB = '_blank';\nvar MIDDLECLICK = 1;\n\nvar OutboundLink = /*#__PURE__*/function (_Component) {\n _inherits(OutboundLink, _Component);\n\n var _super = _createSuper(OutboundLink);\n\n function OutboundLink() {\n var _this;\n\n _classCallCheck(this, OutboundLink);\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _super.call.apply(_super, [this].concat(args));\n\n _defineProperty(_assertThisInitialized(_this), \"handleClick\", function (event) {\n var _this$props = _this.props,\n target = _this$props.target,\n eventLabel = _this$props.eventLabel,\n to = _this$props.to,\n onClick = _this$props.onClick,\n trackerNames = _this$props.trackerNames;\n var eventMeta = {\n label: eventLabel\n };\n var sameTarget = target !== NEWTAB;\n var normalClick = !(event.ctrlKey || event.shiftKey || event.metaKey || event.button === MIDDLECLICK);\n\n if (sameTarget && normalClick) {\n event.preventDefault();\n OutboundLink.trackLink(eventMeta, function () {\n window.location.href = to;\n }, trackerNames);\n } else {\n OutboundLink.trackLink(eventMeta, function () {}, trackerNames);\n }\n\n if (onClick) {\n onClick(event);\n }\n });\n\n return _this;\n }\n\n _createClass(OutboundLink, [{\n key: \"render\",\n value: function render() {\n var _this$props2 = this.props,\n href = _this$props2.to,\n target = _this$props2.target,\n oldProps = _objectWithoutProperties(_this$props2, [\"to\", \"target\"]);\n\n var props = _objectSpread(_objectSpread({}, oldProps), {}, {\n target: target,\n href: href,\n onClick: this.handleClick\n });\n\n if (target === NEWTAB) {\n props.rel = \"\".concat(props.rel ? props.rel : '', \" noopener noreferrer\").trim();\n }\n\n delete props.eventLabel;\n delete props.trackerNames;\n return /*#__PURE__*/React.createElement('a', props);\n }\n }]);\n\n return OutboundLink;\n}(Component);\n\n_defineProperty(OutboundLink, \"trackLink\", function () {\n warn('ga tracking not enabled');\n});\n\nexport { OutboundLink as default };\nOutboundLink.propTypes = {\n eventLabel: PropTypes.string.isRequired,\n target: PropTypes.string,\n to: PropTypes.string,\n onClick: PropTypes.func,\n trackerNames: PropTypes.arrayOf(PropTypes.string)\n};\nOutboundLink.defaultProps = {\n target: null,\n to: null,\n onClick: null,\n trackerNames: null\n};","// See if s could be an email address. We don't want to send personal data like email.\n// https://support.google.com/analytics/answer/2795983?hl=en\nexport default function mightBeEmail(s) {\n // There's no point trying to validate rfc822 fully, just look for ...@...\n return typeof s === 'string' && s.indexOf('@') !== -1;\n}","import warn from './console/warn';\nimport mightBeEmail from './mightBeEmail';\nvar redacted = 'REDACTED (Potential Email Address)';\nexport default function redactEmail(string) {\n if (mightBeEmail(string)) {\n warn('This arg looks like an email address, redacting.');\n return redacted;\n }\n\n return string;\n}","// GA strings need to have leading/trailing whitespace trimmed, and not all\n// browsers have String.prototoype.trim().\nexport default function trim(s) {\n return s && s.toString().replace(/^\\s+|\\s+$/g, '');\n}","/**\n * To Title Case 2.1 - http://individed.com/code/to-title-case/\n * Copyright 2008-2013 David Gouch. Licensed under the MIT License.\n * https://github.com/gouch/to-title-case\n */\nimport trim from './trim';\nvar smallWords = /^(a|an|and|as|at|but|by|en|for|if|in|nor|of|on|or|per|the|to|vs?\\.?|via)$/i; // test\n\nexport default function toTitleCase(string) {\n return trim(string).replace(/[A-Za-z0-9\\u00C0-\\u00FF]+[^\\s-]*/g, function (match, index, title) {\n if (index > 0 && index + match.length !== title.length && match.search(smallWords) > -1 && title.charAt(index - 2) !== ':' && (title.charAt(index + match.length) !== '-' || title.charAt(index - 1) === '-') && title.charAt(index - 1).search(/[^\\s-]/) < 0) {\n return match.toLowerCase();\n }\n\n if (match.substr(1).search(/[A-Z]|\\../) > -1) {\n return match;\n }\n\n return match.charAt(0).toUpperCase() + match.substr(1);\n });\n}","import redactEmail from './redactEmail';\nimport toTitleCase from './toTitleCase';\nexport default function format() {\n var s = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';\n var titleCase = arguments.length > 1 ? arguments[1] : undefined;\n var redactingEmail = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;\n\n var _str = s || '';\n\n if (titleCase) {\n _str = toTitleCase(s);\n }\n\n if (redactingEmail) {\n _str = redactEmail(_str);\n }\n\n return _str;\n}","export default function removeLeadingSlash(string) {\n if (string.substring(0, 1) === '/') {\n return string.substring(1);\n }\n\n return string;\n}","var isLoaded = false;\nexport default function (options) {\n if (isLoaded) return;\n isLoaded = true;\n var gaAddress = 'https://www.google-analytics.com/analytics.js';\n\n if (options && options.gaAddress) {\n gaAddress = options.gaAddress;\n } else if (options && options.debug) {\n gaAddress = 'https://www.google-analytics.com/analytics_debug.js';\n }\n\n var onerror = options && options.onerror; // https://developers.google.com/analytics/devguides/collection/analyticsjs/\n\n /* eslint-disable */\n\n (function (i, s, o, g, r, a, m) {\n i['GoogleAnalyticsObject'] = r;\n i[r] = i[r] || function () {\n (i[r].q = i[r].q || []).push(arguments);\n }, i[r].l = 1 * new Date();\n a = s.createElement(o), m = s.getElementsByTagName(o)[0];\n a.async = 1;\n a.src = g;\n a.onerror = onerror;\n m.parentNode.insertBefore(a, m);\n })(window, document, 'script', gaAddress, 'ga');\n /* eslint-enable */\n\n}","export default function log(s) {\n console.info('[react-ga]', s);\n}","export var gaCalls = [];\nexport default {\n calls: gaCalls,\n ga: function ga() {\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n gaCalls.push([].concat(args));\n },\n resetCalls: function resetCalls() {\n gaCalls.length = 0;\n }\n};","function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nfunction _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && Symbol.iterator in Object(iter)) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\n/**\n * React Google Analytics Module\n *\n * @package react-ga\n * @author Adam Lofting \n * Atul Varma \n */\n\n/**\n * Utilities\n */\nimport format from './utils/format';\nimport removeLeadingSlash from './utils/removeLeadingSlash';\nimport trim from './utils/trim';\nimport loadGA from './utils/loadGA';\nimport warn from './utils/console/warn';\nimport log from './utils/console/log';\nimport TestModeAPI from './utils/testModeAPI';\n\nvar _isNotBrowser = typeof window === 'undefined' || typeof document === 'undefined';\n\nvar _debug = false;\nvar _titleCase = true;\nvar _testMode = false;\nvar _alwaysSendToDefaultTracker = true;\nvar _redactEmail = true;\n\nvar internalGa = function internalGa() {\n var _window;\n\n if (_testMode) return TestModeAPI.ga.apply(TestModeAPI, arguments);\n if (_isNotBrowser) return false;\n if (!window.ga) return warn('ReactGA.initialize must be called first or GoogleAnalytics should be loaded manually');\n return (_window = window).ga.apply(_window, arguments);\n};\n\nfunction _format(s) {\n return format(s, _titleCase, _redactEmail);\n}\n\nfunction _gaCommand(trackerNames) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n var command = args[0];\n\n if (typeof internalGa === 'function') {\n if (typeof command !== 'string') {\n warn('ga command must be a string');\n return;\n }\n\n if (_alwaysSendToDefaultTracker || !Array.isArray(trackerNames)) internalGa.apply(void 0, args);\n\n if (Array.isArray(trackerNames)) {\n trackerNames.forEach(function (name) {\n internalGa.apply(void 0, _toConsumableArray([\"\".concat(name, \".\").concat(command)].concat(args.slice(1))));\n });\n }\n }\n}\n\nfunction _initialize(gaTrackingID, options) {\n if (!gaTrackingID) {\n warn('gaTrackingID is required in initialize()');\n return;\n }\n\n if (options) {\n if (options.debug && options.debug === true) {\n _debug = true;\n }\n\n if (options.titleCase === false) {\n _titleCase = false;\n }\n\n if (options.redactEmail === false) {\n _redactEmail = false;\n }\n\n if (options.useExistingGa) {\n return;\n }\n }\n\n if (options && options.gaOptions) {\n internalGa('create', gaTrackingID, options.gaOptions);\n } else {\n internalGa('create', gaTrackingID, 'auto');\n }\n}\n\nexport function addTrackers(configsOrTrackingId, options) {\n if (Array.isArray(configsOrTrackingId)) {\n configsOrTrackingId.forEach(function (config) {\n if (_typeof(config) !== 'object') {\n warn('All configs must be an object');\n return;\n }\n\n _initialize(config.trackingId, config);\n });\n } else {\n _initialize(configsOrTrackingId, options);\n }\n\n return true;\n}\nexport function initialize(configsOrTrackingId, options) {\n if (options && options.testMode === true) {\n _testMode = true;\n } else {\n if (_isNotBrowser) {\n return;\n }\n\n if (!options || options.standardImplementation !== true) loadGA(options);\n }\n\n _alwaysSendToDefaultTracker = options && typeof options.alwaysSendToDefaultTracker === 'boolean' ? options.alwaysSendToDefaultTracker : true;\n addTrackers(configsOrTrackingId, options);\n}\n/**\n * ga:\n * Returns the original GA object.\n */\n\nexport function ga() {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n if (args.length > 0) {\n internalGa.apply(void 0, args);\n\n if (_debug) {\n log(\"called ga('arguments');\");\n log(\"with arguments: \".concat(JSON.stringify(args)));\n }\n }\n\n return window.ga;\n}\n/**\n * set:\n * GA tracker set method\n * @param {Object} fieldsObject - a field/value pair or a group of field/value pairs on the tracker\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function set(fieldsObject, trackerNames) {\n if (!fieldsObject) {\n warn('`fieldsObject` is required in .set()');\n return;\n }\n\n if (_typeof(fieldsObject) !== 'object') {\n warn('Expected `fieldsObject` arg to be an Object');\n return;\n }\n\n if (Object.keys(fieldsObject).length === 0) {\n warn('empty `fieldsObject` given to .set()');\n }\n\n _gaCommand(trackerNames, 'set', fieldsObject);\n\n if (_debug) {\n log(\"called ga('set', fieldsObject);\");\n log(\"with fieldsObject: \".concat(JSON.stringify(fieldsObject)));\n }\n}\n/**\n * send:\n * Clone of the low level `ga.send` method\n * WARNING: No validations will be applied to this\n * @param {Object} fieldObject - field object for tracking different analytics\n * @param {Array} trackerNames - trackers to send the command to\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function send(fieldObject, trackerNames) {\n _gaCommand(trackerNames, 'send', fieldObject);\n\n if (_debug) {\n log(\"called ga('send', fieldObject);\");\n log(\"with fieldObject: \".concat(JSON.stringify(fieldObject)));\n log(\"with trackers: \".concat(JSON.stringify(trackerNames)));\n }\n}\n/**\n * pageview:\n * Basic GA pageview tracking\n * @param {String} path - the current page page e.g. '/about'\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n * @param {String} title - (optional) the page title e. g. 'My Website'\n */\n\nexport function pageview(rawPath, trackerNames, title) {\n if (!rawPath) {\n warn('path is required in .pageview()');\n return;\n }\n\n var path = trim(rawPath);\n\n if (path === '') {\n warn('path cannot be an empty string in .pageview()');\n return;\n }\n\n var extraFields = {};\n\n if (title) {\n extraFields.title = title;\n }\n\n if (typeof ga === 'function') {\n _gaCommand(trackerNames, 'send', _objectSpread({\n hitType: 'pageview',\n page: path\n }, extraFields));\n\n if (_debug) {\n log(\"called ga('send', 'pageview', path);\");\n var extraLog = '';\n\n if (title) {\n extraLog = \" and title: \".concat(title);\n }\n\n log(\"with path: \".concat(path).concat(extraLog));\n }\n }\n}\n/**\n * modalview:\n * a proxy to basic GA pageview tracking to consistently track\n * modal views that are an equivalent UX to a traditional pageview\n * @param {String} modalName e.g. 'add-or-edit-club'\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function modalview(rawModalName, trackerNames) {\n if (!rawModalName) {\n warn('modalName is required in .modalview(modalName)');\n return;\n }\n\n var modalName = removeLeadingSlash(trim(rawModalName));\n\n if (modalName === '') {\n warn('modalName cannot be an empty string or a single / in .modalview()');\n return;\n }\n\n if (typeof ga === 'function') {\n var path = \"/modal/\".concat(modalName);\n\n _gaCommand(trackerNames, 'send', 'pageview', path);\n\n if (_debug) {\n log(\"called ga('send', 'pageview', path);\");\n log(\"with path: \".concat(path));\n }\n }\n}\n/**\n * timing:\n * GA timing\n * @param args.category {String} required\n * @param args.variable {String} required\n * @param args.value {Int} required\n * @param args.label {String} required\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function timing() {\n var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n category = _ref.category,\n variable = _ref.variable,\n value = _ref.value,\n label = _ref.label;\n\n var trackerNames = arguments.length > 1 ? arguments[1] : undefined;\n\n if (typeof ga === 'function') {\n if (!category || !variable || typeof value !== 'number') {\n warn('args.category, args.variable ' + 'AND args.value are required in timing() ' + 'AND args.value has to be a number');\n return;\n } // Required Fields\n\n\n var fieldObject = {\n hitType: 'timing',\n timingCategory: _format(category),\n timingVar: _format(variable),\n timingValue: value\n };\n\n if (label) {\n fieldObject.timingLabel = _format(label);\n }\n\n send(fieldObject, trackerNames);\n }\n}\n/**\n * event:\n * GA event tracking\n * @param args.category {String} required\n * @param args.action {String} required\n * @param args.label {String} optional\n * @param args.value {Int} optional\n * @param args.nonInteraction {boolean} optional\n * @param args.transport {string} optional\n * @param {{action: string, category: string}} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function event() {\n var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n category = _ref2.category,\n action = _ref2.action,\n label = _ref2.label,\n value = _ref2.value,\n nonInteraction = _ref2.nonInteraction,\n transport = _ref2.transport,\n args = _objectWithoutProperties(_ref2, [\"category\", \"action\", \"label\", \"value\", \"nonInteraction\", \"transport\"]);\n\n var trackerNames = arguments.length > 1 ? arguments[1] : undefined;\n\n if (typeof ga === 'function') {\n // Simple Validation\n if (!category || !action) {\n warn('args.category AND args.action are required in event()');\n return;\n } // Required Fields\n\n\n var fieldObject = {\n hitType: 'event',\n eventCategory: _format(category),\n eventAction: _format(action)\n }; // Optional Fields\n\n if (label) {\n fieldObject.eventLabel = _format(label);\n }\n\n if (typeof value !== 'undefined') {\n if (typeof value !== 'number') {\n warn('Expected `args.value` arg to be a Number.');\n } else {\n fieldObject.eventValue = value;\n }\n }\n\n if (typeof nonInteraction !== 'undefined') {\n if (typeof nonInteraction !== 'boolean') {\n warn('`args.nonInteraction` must be a boolean.');\n } else {\n fieldObject.nonInteraction = nonInteraction;\n }\n }\n\n if (typeof transport !== 'undefined') {\n if (typeof transport !== 'string') {\n warn('`args.transport` must be a string.');\n } else {\n if (['beacon', 'xhr', 'image'].indexOf(transport) === -1) {\n warn('`args.transport` must be either one of these values: `beacon`, `xhr` or `image`');\n }\n\n fieldObject.transport = transport;\n }\n }\n\n Object.keys(args).filter(function (key) {\n return key.substr(0, 'dimension'.length) === 'dimension';\n }).forEach(function (key) {\n fieldObject[key] = args[key];\n });\n Object.keys(args).filter(function (key) {\n return key.substr(0, 'metric'.length) === 'metric';\n }).forEach(function (key) {\n fieldObject[key] = args[key];\n }); // Send to GA\n\n send(fieldObject, trackerNames);\n }\n}\n/**\n * exception:\n * GA exception tracking\n * @param args.description {String} optional\n * @param args.fatal {boolean} optional\n * @param {Array} trackerNames - (optional) a list of extra trackers to run the command on\n */\n\nexport function exception(_ref3, trackerNames) {\n var description = _ref3.description,\n fatal = _ref3.fatal;\n\n if (typeof ga === 'function') {\n // Required Fields\n var fieldObject = {\n hitType: 'exception'\n }; // Optional Fields\n\n if (description) {\n fieldObject.exDescription = _format(description);\n }\n\n if (typeof fatal !== 'undefined') {\n if (typeof fatal !== 'boolean') {\n warn('`args.fatal` must be a boolean.');\n } else {\n fieldObject.exFatal = fatal;\n }\n } // Send to GA\n\n\n send(fieldObject, trackerNames);\n }\n}\nexport var plugin = {\n /**\n * require:\n * GA requires a plugin\n * @param name {String} e.g. 'ecommerce' or 'myplugin'\n * @param options {Object} optional e.g {path: '/log', debug: true}\n * @param trackerName {String} optional e.g 'trackerName'\n */\n require: function require(rawName, options, trackerName) {\n if (typeof ga === 'function') {\n // Required Fields\n if (!rawName) {\n warn('`name` is required in .require()');\n return;\n }\n\n var name = trim(rawName);\n\n if (name === '') {\n warn('`name` cannot be an empty string in .require()');\n return;\n }\n\n var requireString = trackerName ? \"\".concat(trackerName, \".require\") : 'require'; // Optional Fields\n\n if (options) {\n if (_typeof(options) !== 'object') {\n warn('Expected `options` arg to be an Object');\n return;\n }\n\n if (Object.keys(options).length === 0) {\n warn('Empty `options` given to .require()');\n }\n\n ga(requireString, name, options);\n\n if (_debug) {\n log(\"called ga('require', '\".concat(name, \"', \").concat(JSON.stringify(options)));\n }\n } else {\n ga(requireString, name);\n\n if (_debug) {\n log(\"called ga('require', '\".concat(name, \"');\"));\n }\n }\n }\n },\n\n /**\n * execute:\n * GA execute action for plugin\n * Takes variable number of arguments\n * @param pluginName {String} e.g. 'ecommerce' or 'myplugin'\n * @param action {String} e.g. 'addItem' or 'myCustomAction'\n * @param actionType {String} optional e.g. 'detail'\n * @param payload {Object} optional e.g { id: '1x5e', name : 'My product to track' }\n */\n execute: function execute(pluginName, action) {\n var payload;\n var actionType;\n\n for (var _len3 = arguments.length, args = new Array(_len3 > 2 ? _len3 - 2 : 0), _key3 = 2; _key3 < _len3; _key3++) {\n args[_key3 - 2] = arguments[_key3];\n }\n\n if (args.length === 1) {\n payload = args[0];\n } else {\n actionType = args[0];\n payload = args[1];\n }\n\n if (typeof ga === 'function') {\n if (typeof pluginName !== 'string') {\n warn('Expected `pluginName` arg to be a String.');\n } else if (typeof action !== 'string') {\n warn('Expected `action` arg to be a String.');\n } else {\n var command = \"\".concat(pluginName, \":\").concat(action);\n payload = payload || null;\n\n if (actionType && payload) {\n ga(command, actionType, payload);\n\n if (_debug) {\n log(\"called ga('\".concat(command, \"');\"));\n log(\"actionType: \\\"\".concat(actionType, \"\\\" with payload: \").concat(JSON.stringify(payload)));\n }\n } else if (payload) {\n ga(command, payload);\n\n if (_debug) {\n log(\"called ga('\".concat(command, \"');\"));\n log(\"with payload: \".concat(JSON.stringify(payload)));\n }\n } else {\n ga(command);\n\n if (_debug) {\n log(\"called ga('\".concat(command, \"');\"));\n }\n }\n }\n }\n }\n};\n/**\n * outboundLink:\n * GA outboundLink tracking\n * @param args.label {String} e.g. url, or 'Create an Account'\n * @param {function} hitCallback - Called after processing a hit.\n */\n\nexport function outboundLink(args, hitCallback, trackerNames) {\n if (typeof hitCallback !== 'function') {\n warn('hitCallback function is required');\n return;\n }\n\n if (typeof ga === 'function') {\n // Simple Validation\n if (!args || !args.label) {\n warn('args.label is required in outboundLink()');\n return;\n } // Required Fields\n\n\n var fieldObject = {\n hitType: 'event',\n eventCategory: 'Outbound',\n eventAction: 'Click',\n eventLabel: _format(args.label)\n };\n var safetyCallbackCalled = false;\n\n var safetyCallback = function safetyCallback() {\n // This prevents a delayed response from GA\n // causing hitCallback from being fired twice\n safetyCallbackCalled = true;\n hitCallback();\n }; // Using a timeout to ensure the execution of critical application code\n // in the case when the GA server might be down\n // or an ad blocker prevents sending the data\n // register safety net timeout:\n\n\n var t = setTimeout(safetyCallback, 250);\n\n var clearableCallbackForGA = function clearableCallbackForGA() {\n clearTimeout(t);\n\n if (!safetyCallbackCalled) {\n hitCallback();\n }\n };\n\n fieldObject.hitCallback = clearableCallbackForGA; // Send to GA\n\n send(fieldObject, trackerNames);\n } else {\n // if ga is not defined, return the callback so the application\n // continues to work as expected\n setTimeout(hitCallback, 0);\n }\n}\nexport var testModeAPI = TestModeAPI;\nexport default {\n initialize: initialize,\n ga: ga,\n set: set,\n send: send,\n pageview: pageview,\n modalview: modalview,\n timing: timing,\n event: event,\n exception: exception,\n plugin: plugin,\n outboundLink: outboundLink,\n testModeAPI: TestModeAPI\n};","function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nimport UnboundOutboundLink from './components/OutboundLink';\nimport * as Defaults from './core';\nvar initialize = Defaults.initialize;\nexport { initialize };\nvar addTrackers = Defaults.addTrackers;\nexport { addTrackers };\nvar ga = Defaults.ga;\nexport { ga };\nvar set = Defaults.set;\nexport { set };\nvar send = Defaults.send;\nexport { send };\nvar pageview = Defaults.pageview;\nexport { pageview };\nvar modalview = Defaults.modalview;\nexport { modalview };\nvar timing = Defaults.timing;\nexport { timing };\nvar event = Defaults.event;\nexport { event };\nvar exception = Defaults.exception;\nexport { exception };\nvar plugin = Defaults.plugin;\nexport { plugin };\nvar outboundLink = Defaults.outboundLink;\nexport { outboundLink };\nvar testModeAPI = Defaults.testModeAPI;\nexport { testModeAPI };\nUnboundOutboundLink.origTrackLink = UnboundOutboundLink.trackLink;\nUnboundOutboundLink.trackLink = Defaults.outboundLink;\nexport var OutboundLink = UnboundOutboundLink;\nexport default _objectSpread(_objectSpread({}, Defaults), {}, {\n OutboundLink: OutboundLink\n});","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? 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(function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n","// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.\n// See LICENSE in the project root for license information.\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\n// Store the theming state in __themeState__ global scope for reuse in the case of duplicate\n// load-themed-styles hosted on the page.\nvar _root = typeof window === 'undefined' ? global : window; // eslint-disable-line @typescript-eslint/no-explicit-any\n// Nonce string to inject into script tag if one provided. This is used in CSP (Content Security Policy).\nvar _styleNonce = _root && _root.CSPSettings && _root.CSPSettings.nonce;\nvar _themeState = initializeThemeState();\n/**\n * Matches theming tokens. For example, \"[theme: themeSlotName, default: #FFF]\" (including the quotes).\n */\nvar _themeTokenRegex = /[\\'\\\"]\\[theme:\\s*(\\w+)\\s*(?:\\,\\s*default:\\s*([\\\\\"\\']?[\\.\\,\\(\\)\\#\\-\\s\\w]*[\\.\\,\\(\\)\\#\\-\\w][\\\"\\']?))?\\s*\\][\\'\\\"]/g;\nvar now = function () {\n return typeof performance !== 'undefined' && !!performance.now ? performance.now() : Date.now();\n};\nfunction measure(func) {\n var start = now();\n func();\n var end = now();\n _themeState.perf.duration += end - start;\n}\n/**\n * initialize global state object\n */\nfunction initializeThemeState() {\n var state = _root.__themeState__ || {\n theme: undefined,\n lastStyleElement: undefined,\n registeredStyles: []\n };\n if (!state.runState) {\n state = __assign(__assign({}, state), { perf: {\n count: 0,\n duration: 0\n }, runState: {\n flushTimer: 0,\n mode: 0 /* sync */,\n buffer: []\n } });\n }\n if (!state.registeredThemableStyles) {\n state = __assign(__assign({}, state), { registeredThemableStyles: [] });\n }\n _root.__themeState__ = state;\n return state;\n}\n/**\n * Loads a set of style text. If it is registered too early, we will register it when the window.load\n * event is fired.\n * @param {string | ThemableArray} styles Themable style text to register.\n * @param {boolean} loadAsync When true, always load styles in async mode, irrespective of current sync mode.\n */\nexport function loadStyles(styles, loadAsync) {\n if (loadAsync === void 0) { loadAsync = false; }\n measure(function () {\n var styleParts = Array.isArray(styles) ? styles : splitStyles(styles);\n var _a = _themeState.runState, mode = _a.mode, buffer = _a.buffer, flushTimer = _a.flushTimer;\n if (loadAsync || mode === 1 /* async */) {\n buffer.push(styleParts);\n if (!flushTimer) {\n _themeState.runState.flushTimer = asyncLoadStyles();\n }\n }\n else {\n applyThemableStyles(styleParts);\n }\n });\n}\n/**\n * Allows for customizable loadStyles logic. e.g. for server side rendering application\n * @param {(processedStyles: string, rawStyles?: string | ThemableArray) => void}\n * a loadStyles callback that gets called when styles are loaded or reloaded\n */\nexport function configureLoadStyles(loadStylesFn) {\n _themeState.loadStyles = loadStylesFn;\n}\n/**\n * Configure run mode of load-themable-styles\n * @param mode load-themable-styles run mode, async or sync\n */\nexport function configureRunMode(mode) {\n _themeState.runState.mode = mode;\n}\n/**\n * external code can call flush to synchronously force processing of currently buffered styles\n */\nexport function flush() {\n measure(function () {\n var styleArrays = _themeState.runState.buffer.slice();\n _themeState.runState.buffer = [];\n var mergedStyleArray = [].concat.apply([], styleArrays);\n if (mergedStyleArray.length > 0) {\n applyThemableStyles(mergedStyleArray);\n }\n });\n}\n/**\n * register async loadStyles\n */\nfunction asyncLoadStyles() {\n return setTimeout(function () {\n _themeState.runState.flushTimer = 0;\n flush();\n }, 0);\n}\n/**\n * Loads a set of style text. If it is registered too early, we will register it when the window.load event\n * is fired.\n * @param {string} styleText Style to register.\n * @param {IStyleRecord} styleRecord Existing style record to re-apply.\n */\nfunction applyThemableStyles(stylesArray, styleRecord) {\n if (_themeState.loadStyles) {\n _themeState.loadStyles(resolveThemableArray(stylesArray).styleString, stylesArray);\n }\n else {\n registerStyles(stylesArray);\n }\n}\n/**\n * Registers a set theme tokens to find and replace. If styles were already registered, they will be\n * replaced.\n * @param {theme} theme JSON object of theme tokens to values.\n */\nexport function loadTheme(theme) {\n _themeState.theme = theme;\n // reload styles.\n reloadStyles();\n}\n/**\n * Clear already registered style elements and style records in theme_State object\n * @param option - specify which group of registered styles should be cleared.\n * Default to be both themable and non-themable styles will be cleared\n */\nexport function clearStyles(option) {\n if (option === void 0) { option = 3 /* all */; }\n if (option === 3 /* all */ || option === 2 /* onlyNonThemable */) {\n clearStylesInternal(_themeState.registeredStyles);\n _themeState.registeredStyles = [];\n }\n if (option === 3 /* all */ || option === 1 /* onlyThemable */) {\n clearStylesInternal(_themeState.registeredThemableStyles);\n _themeState.registeredThemableStyles = [];\n }\n}\nfunction clearStylesInternal(records) {\n records.forEach(function (styleRecord) {\n var styleElement = styleRecord && styleRecord.styleElement;\n if (styleElement && styleElement.parentElement) {\n styleElement.parentElement.removeChild(styleElement);\n }\n });\n}\n/**\n * Reloads styles.\n */\nfunction reloadStyles() {\n if (_themeState.theme) {\n var themableStyles = [];\n for (var _i = 0, _a = _themeState.registeredThemableStyles; _i < _a.length; _i++) {\n var styleRecord = _a[_i];\n themableStyles.push(styleRecord.themableStyle);\n }\n if (themableStyles.length > 0) {\n clearStyles(1 /* onlyThemable */);\n applyThemableStyles([].concat.apply([], themableStyles));\n }\n }\n}\n/**\n * Find theme tokens and replaces them with provided theme values.\n * @param {string} styles Tokenized styles to fix.\n */\nexport function detokenize(styles) {\n if (styles) {\n styles = resolveThemableArray(splitStyles(styles)).styleString;\n }\n return styles;\n}\n/**\n * Resolves ThemingInstruction objects in an array and joins the result into a string.\n * @param {ThemableArray} splitStyleArray ThemableArray to resolve and join.\n */\nfunction resolveThemableArray(splitStyleArray) {\n var theme = _themeState.theme;\n var themable = false;\n // Resolve the array of theming instructions to an array of strings.\n // Then join the array to produce the final CSS string.\n var resolvedArray = (splitStyleArray || []).map(function (currentValue) {\n var themeSlot = currentValue.theme;\n if (themeSlot) {\n themable = true;\n // A theming annotation. Resolve it.\n var themedValue = theme ? theme[themeSlot] : undefined;\n var defaultValue = currentValue.defaultValue || 'inherit';\n // Warn to console if we hit an unthemed value even when themes are provided, but only if \"DEBUG\" is true.\n // Allow the themedValue to be undefined to explicitly request the default value.\n if (theme &&\n !themedValue &&\n console &&\n !(themeSlot in theme) &&\n typeof DEBUG !== 'undefined' &&\n DEBUG) {\n console.warn(\"Theming value not provided for \\\"\".concat(themeSlot, \"\\\". Falling back to \\\"\").concat(defaultValue, \"\\\".\"));\n }\n return themedValue || defaultValue;\n }\n else {\n // A non-themable string. Preserve it.\n return currentValue.rawString;\n }\n });\n return {\n styleString: resolvedArray.join(''),\n themable: themable\n };\n}\n/**\n * Split tokenized CSS into an array of strings and theme specification objects\n * @param {string} styles Tokenized styles to split.\n */\nexport function splitStyles(styles) {\n var result = [];\n if (styles) {\n var pos = 0; // Current position in styles.\n var tokenMatch = void 0;\n while ((tokenMatch = _themeTokenRegex.exec(styles))) {\n var matchIndex = tokenMatch.index;\n if (matchIndex > pos) {\n result.push({\n rawString: styles.substring(pos, matchIndex)\n });\n }\n result.push({\n theme: tokenMatch[1],\n defaultValue: tokenMatch[2] // May be undefined\n });\n // index of the first character after the current match\n pos = _themeTokenRegex.lastIndex;\n }\n // Push the rest of the string after the last match.\n result.push({\n rawString: styles.substring(pos)\n });\n }\n return result;\n}\n/**\n * Registers a set of style text. If it is registered too early, we will register it when the\n * window.load event is fired.\n * @param {ThemableArray} styleArray Array of IThemingInstruction objects to register.\n * @param {IStyleRecord} styleRecord May specify a style Element to update.\n */\nfunction registerStyles(styleArray) {\n if (typeof document === 'undefined') {\n return;\n }\n var head = document.getElementsByTagName('head')[0];\n var styleElement = document.createElement('style');\n var _a = resolveThemableArray(styleArray), styleString = _a.styleString, themable = _a.themable;\n styleElement.setAttribute('data-load-themed-styles', 'true');\n if (_styleNonce) {\n styleElement.setAttribute('nonce', _styleNonce);\n }\n styleElement.appendChild(document.createTextNode(styleString));\n _themeState.perf.count++;\n head.appendChild(styleElement);\n var ev = document.createEvent('HTMLEvents');\n ev.initEvent('styleinsert', true /* bubbleEvent */, false /* cancelable */);\n ev.args = {\n newStyle: styleElement\n };\n document.dispatchEvent(ev);\n var record = {\n styleElement: styleElement,\n themableStyle: styleArray\n };\n if (themable) {\n _themeState.registeredThemableStyles.push(record);\n }\n else {\n _themeState.registeredStyles.push(record);\n }\n}\n//# sourceMappingURL=index.js.map","/** @license React v0.20.2\n * scheduler.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';var f,g,h,k;if(\"object\"===typeof performance&&\"function\"===typeof performance.now){var l=performance;exports.unstable_now=function(){return l.now()}}else{var p=Date,q=p.now();exports.unstable_now=function(){return p.now()-q}}\nif(\"undefined\"===typeof window||\"function\"!==typeof MessageChannel){var t=null,u=null,w=function(){if(null!==t)try{var a=exports.unstable_now();t(!0,a);t=null}catch(b){throw setTimeout(w,0),b;}};f=function(a){null!==t?setTimeout(f,0,a):(t=a,setTimeout(w,0))};g=function(a,b){u=setTimeout(a,b)};h=function(){clearTimeout(u)};exports.unstable_shouldYield=function(){return!1};k=exports.unstable_forceFrameRate=function(){}}else{var x=window.setTimeout,y=window.clearTimeout;if(\"undefined\"!==typeof console){var z=\nwindow.cancelAnimationFrame;\"function\"!==typeof window.requestAnimationFrame&&console.error(\"This browser doesn't support requestAnimationFrame. 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{\n return isInteger(thing) && thing >= bottom && thing <= top;\n}\n\n// x % n but takes the sign of n instead of x\nexport function floorMod(x, n) {\n return x - n * Math.floor(x / n);\n}\n\nexport function padStart(input, n = 2) {\n const isNeg = input < 0;\n let padded;\n if (isNeg) {\n padded = \"-\" + (\"\" + -input).padStart(n, \"0\");\n } else {\n padded = (\"\" + input).padStart(n, \"0\");\n }\n return padded;\n}\n\nexport function parseInteger(string) {\n if (isUndefined(string) || string === null || string === \"\") {\n return undefined;\n } else {\n return parseInt(string, 10);\n }\n}\n\nexport function parseFloating(string) {\n if (isUndefined(string) || string === null || string === \"\") {\n return undefined;\n } else {\n return parseFloat(string);\n }\n}\n\nexport function parseMillis(fraction) {\n // Return undefined (instead of 0) in these cases, where fraction is not set\n if (isUndefined(fraction) || fraction === null || fraction === \"\") {\n return undefined;\n } else {\n const f = parseFloat(\"0.\" + fraction) * 1000;\n return Math.floor(f);\n }\n}\n\nexport function roundTo(number, digits, towardZero = false) {\n const factor = 10 ** digits,\n rounder = towardZero ? Math.trunc : Math.round;\n return rounder(number * factor) / factor;\n}\n\n// DATE BASICS\n\nexport function isLeapYear(year) {\n return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);\n}\n\nexport function daysInYear(year) {\n return isLeapYear(year) ? 366 : 365;\n}\n\nexport function daysInMonth(year, month) {\n const modMonth = floorMod(month - 1, 12) + 1,\n modYear = year + (month - modMonth) / 12;\n\n if (modMonth === 2) {\n return isLeapYear(modYear) ? 29 : 28;\n } else {\n return [31, null, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][modMonth - 1];\n }\n}\n\n// covert a calendar object to a local timestamp (epoch, but with the offset baked in)\nexport function objToLocalTS(obj) {\n let d = Date.UTC(\n obj.year,\n obj.month - 1,\n obj.day,\n obj.hour,\n obj.minute,\n obj.second,\n obj.millisecond\n );\n\n // for legacy reasons, years between 0 and 99 are interpreted as 19XX; revert that\n if (obj.year < 100 && obj.year >= 0) {\n d = new Date(d);\n d.setUTCFullYear(d.getUTCFullYear() - 1900);\n }\n return +d;\n}\n\nexport function weeksInWeekYear(weekYear) {\n const p1 =\n (weekYear +\n Math.floor(weekYear / 4) -\n Math.floor(weekYear / 100) +\n Math.floor(weekYear / 400)) %\n 7,\n last = weekYear - 1,\n p2 = (last + Math.floor(last / 4) - Math.floor(last / 100) + Math.floor(last / 400)) % 7;\n return p1 === 4 || p2 === 3 ? 53 : 52;\n}\n\nexport function untruncateYear(year) {\n if (year > 99) {\n return year;\n } else return year > 60 ? 1900 + year : 2000 + year;\n}\n\n// PARSING\n\nexport function parseZoneInfo(ts, offsetFormat, locale, timeZone = null) {\n const date = new Date(ts),\n intlOpts = {\n hourCycle: \"h23\",\n year: \"numeric\",\n month: \"2-digit\",\n day: \"2-digit\",\n hour: \"2-digit\",\n minute: \"2-digit\",\n };\n\n if (timeZone) {\n intlOpts.timeZone = timeZone;\n }\n\n const modified = { timeZoneName: offsetFormat, ...intlOpts };\n\n const parsed = new Intl.DateTimeFormat(locale, modified)\n .formatToParts(date)\n .find((m) => m.type.toLowerCase() === \"timezonename\");\n return parsed ? parsed.value : null;\n}\n\n// signedOffset('-5', '30') -> -330\nexport function signedOffset(offHourStr, offMinuteStr) {\n let offHour = parseInt(offHourStr, 10);\n\n // don't || this because we want to preserve -0\n if (Number.isNaN(offHour)) {\n offHour = 0;\n }\n\n const offMin = parseInt(offMinuteStr, 10) || 0,\n offMinSigned = offHour < 0 || Object.is(offHour, -0) ? -offMin : offMin;\n return offHour * 60 + offMinSigned;\n}\n\n// COERCION\n\nexport function asNumber(value) {\n const numericValue = Number(value);\n if (typeof value === \"boolean\" || value === \"\" || Number.isNaN(numericValue))\n throw new InvalidArgumentError(`Invalid unit value ${value}`);\n return numericValue;\n}\n\nexport function normalizeObject(obj, normalizer) {\n const normalized = {};\n for (const u in obj) {\n if (hasOwnProperty(obj, u)) {\n const v = obj[u];\n if (v === undefined || v === null) continue;\n normalized[normalizer(u)] = asNumber(v);\n }\n }\n return normalized;\n}\n\nexport function formatOffset(offset, format) {\n const hours = Math.trunc(Math.abs(offset / 60)),\n minutes = Math.trunc(Math.abs(offset % 60)),\n sign = offset >= 0 ? \"+\" : \"-\";\n\n switch (format) {\n case \"short\":\n return `${sign}${padStart(hours, 2)}:${padStart(minutes, 2)}`;\n case \"narrow\":\n return `${sign}${hours}${minutes > 0 ? `:${minutes}` : \"\"}`;\n case \"techie\":\n return `${sign}${padStart(hours, 2)}${padStart(minutes, 2)}`;\n default:\n throw new RangeError(`Value format ${format} is out of range for property format`);\n }\n}\n\nexport function timeObject(obj) {\n return pick(obj, [\"hour\", \"minute\", \"second\", \"millisecond\"]);\n}\n\nexport const ianaRegex = /[A-Za-z_+-]{1,256}(:?\\/[A-Za-z0-9_+-]{1,256}(\\/[A-Za-z0-9_+-]{1,256})?)?/;\n","import * as Formats from \"./formats.js\";\nimport { pick } from \"./util.js\";\n\nfunction stringify(obj) {\n return JSON.stringify(obj, Object.keys(obj).sort());\n}\n\n/**\n * @private\n */\n\nexport const monthsLong = [\n \"January\",\n \"February\",\n \"March\",\n \"April\",\n \"May\",\n \"June\",\n \"July\",\n \"August\",\n \"September\",\n \"October\",\n \"November\",\n \"December\",\n];\n\nexport const monthsShort = [\n \"Jan\",\n \"Feb\",\n \"Mar\",\n \"Apr\",\n \"May\",\n \"Jun\",\n \"Jul\",\n \"Aug\",\n \"Sep\",\n \"Oct\",\n \"Nov\",\n \"Dec\",\n];\n\nexport const monthsNarrow = [\"J\", \"F\", \"M\", \"A\", \"M\", \"J\", \"J\", \"A\", \"S\", \"O\", \"N\", \"D\"];\n\nexport function months(length) {\n switch (length) {\n case \"narrow\":\n return [...monthsNarrow];\n case \"short\":\n return [...monthsShort];\n case \"long\":\n return [...monthsLong];\n case \"numeric\":\n return [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\", \"10\", \"11\", \"12\"];\n case \"2-digit\":\n return [\"01\", \"02\", \"03\", \"04\", \"05\", \"06\", \"07\", \"08\", \"09\", \"10\", \"11\", \"12\"];\n default:\n return null;\n }\n}\n\nexport const weekdaysLong = [\n \"Monday\",\n \"Tuesday\",\n \"Wednesday\",\n \"Thursday\",\n \"Friday\",\n \"Saturday\",\n \"Sunday\",\n];\n\nexport const weekdaysShort = [\"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\", \"Sun\"];\n\nexport const weekdaysNarrow = [\"M\", \"T\", \"W\", \"T\", \"F\", \"S\", \"S\"];\n\nexport function weekdays(length) {\n switch (length) {\n case \"narrow\":\n return [...weekdaysNarrow];\n case \"short\":\n return [...weekdaysShort];\n case \"long\":\n return [...weekdaysLong];\n case \"numeric\":\n return [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\"];\n default:\n return null;\n }\n}\n\nexport const meridiems = [\"AM\", \"PM\"];\n\nexport const erasLong = [\"Before Christ\", \"Anno Domini\"];\n\nexport const erasShort = [\"BC\", \"AD\"];\n\nexport const erasNarrow = [\"B\", \"A\"];\n\nexport function eras(length) {\n switch (length) {\n case \"narrow\":\n return [...erasNarrow];\n case \"short\":\n return [...erasShort];\n case \"long\":\n return [...erasLong];\n default:\n return null;\n }\n}\n\nexport function meridiemForDateTime(dt) {\n return meridiems[dt.hour < 12 ? 0 : 1];\n}\n\nexport function weekdayForDateTime(dt, length) {\n return weekdays(length)[dt.weekday - 1];\n}\n\nexport function monthForDateTime(dt, length) {\n return months(length)[dt.month - 1];\n}\n\nexport function eraForDateTime(dt, length) {\n return eras(length)[dt.year < 0 ? 0 : 1];\n}\n\nexport function formatRelativeTime(unit, count, numeric = \"always\", narrow = false) {\n const units = {\n years: [\"year\", \"yr.\"],\n quarters: [\"quarter\", \"qtr.\"],\n months: [\"month\", \"mo.\"],\n weeks: [\"week\", \"wk.\"],\n days: [\"day\", \"day\", \"days\"],\n hours: [\"hour\", \"hr.\"],\n minutes: [\"minute\", \"min.\"],\n seconds: [\"second\", \"sec.\"],\n };\n\n const lastable = [\"hours\", \"minutes\", \"seconds\"].indexOf(unit) === -1;\n\n if (numeric === \"auto\" && lastable) {\n const isDay = unit === \"days\";\n switch (count) {\n case 1:\n return isDay ? \"tomorrow\" : `next ${units[unit][0]}`;\n case -1:\n return isDay ? \"yesterday\" : `last ${units[unit][0]}`;\n case 0:\n return isDay ? \"today\" : `this ${units[unit][0]}`;\n default: // fall through\n }\n }\n\n const isInPast = Object.is(count, -0) || count < 0,\n fmtValue = Math.abs(count),\n singular = fmtValue === 1,\n lilUnits = units[unit],\n fmtUnit = narrow\n ? singular\n ? lilUnits[1]\n : lilUnits[2] || lilUnits[1]\n : singular\n ? units[unit][0]\n : unit;\n return isInPast ? `${fmtValue} ${fmtUnit} ago` : `in ${fmtValue} ${fmtUnit}`;\n}\n\nexport function formatString(knownFormat) {\n // these all have the offsets removed because we don't have access to them\n // without all the intl stuff this is backfilling\n const filtered = pick(knownFormat, [\n \"weekday\",\n \"era\",\n \"year\",\n \"month\",\n \"day\",\n \"hour\",\n \"minute\",\n \"second\",\n \"timeZoneName\",\n \"hourCycle\",\n ]),\n key = stringify(filtered),\n dateTimeHuge = \"EEEE, LLLL d, yyyy, h:mm a\";\n switch (key) {\n case stringify(Formats.DATE_SHORT):\n return \"M/d/yyyy\";\n case stringify(Formats.DATE_MED):\n return \"LLL d, yyyy\";\n case stringify(Formats.DATE_MED_WITH_WEEKDAY):\n return \"EEE, LLL d, yyyy\";\n case stringify(Formats.DATE_FULL):\n return \"LLLL d, yyyy\";\n case stringify(Formats.DATE_HUGE):\n return \"EEEE, LLLL d, yyyy\";\n case stringify(Formats.TIME_SIMPLE):\n return \"h:mm a\";\n case stringify(Formats.TIME_WITH_SECONDS):\n return \"h:mm:ss a\";\n case stringify(Formats.TIME_WITH_SHORT_OFFSET):\n return \"h:mm a\";\n case stringify(Formats.TIME_WITH_LONG_OFFSET):\n return \"h:mm a\";\n case stringify(Formats.TIME_24_SIMPLE):\n return \"HH:mm\";\n case stringify(Formats.TIME_24_WITH_SECONDS):\n return \"HH:mm:ss\";\n case stringify(Formats.TIME_24_WITH_SHORT_OFFSET):\n return \"HH:mm\";\n case stringify(Formats.TIME_24_WITH_LONG_OFFSET):\n return \"HH:mm\";\n case stringify(Formats.DATETIME_SHORT):\n return \"M/d/yyyy, h:mm a\";\n case stringify(Formats.DATETIME_MED):\n return \"LLL d, yyyy, h:mm a\";\n case stringify(Formats.DATETIME_FULL):\n return \"LLLL d, yyyy, h:mm a\";\n case stringify(Formats.DATETIME_HUGE):\n return dateTimeHuge;\n case stringify(Formats.DATETIME_SHORT_WITH_SECONDS):\n return \"M/d/yyyy, h:mm:ss a\";\n case stringify(Formats.DATETIME_MED_WITH_SECONDS):\n return \"LLL d, yyyy, h:mm:ss a\";\n case stringify(Formats.DATETIME_MED_WITH_WEEKDAY):\n return \"EEE, d LLL yyyy, h:mm a\";\n case stringify(Formats.DATETIME_FULL_WITH_SECONDS):\n return \"LLLL d, yyyy, h:mm:ss a\";\n case stringify(Formats.DATETIME_HUGE_WITH_SECONDS):\n return \"EEEE, LLLL d, yyyy, h:mm:ss a\";\n default:\n return dateTimeHuge;\n }\n}\n","import * as English from \"./english.js\";\nimport * as Formats from \"./formats.js\";\nimport { padStart } from \"./util.js\";\n\nfunction stringifyTokens(splits, tokenToString) {\n let s = \"\";\n for (const token of splits) {\n if (token.literal) {\n s += token.val;\n } else {\n s += tokenToString(token.val);\n }\n }\n return s;\n}\n\nconst macroTokenToFormatOpts = {\n D: Formats.DATE_SHORT,\n DD: Formats.DATE_MED,\n DDD: Formats.DATE_FULL,\n DDDD: Formats.DATE_HUGE,\n t: Formats.TIME_SIMPLE,\n tt: Formats.TIME_WITH_SECONDS,\n ttt: Formats.TIME_WITH_SHORT_OFFSET,\n tttt: Formats.TIME_WITH_LONG_OFFSET,\n T: Formats.TIME_24_SIMPLE,\n TT: Formats.TIME_24_WITH_SECONDS,\n TTT: Formats.TIME_24_WITH_SHORT_OFFSET,\n TTTT: Formats.TIME_24_WITH_LONG_OFFSET,\n f: Formats.DATETIME_SHORT,\n ff: Formats.DATETIME_MED,\n fff: Formats.DATETIME_FULL,\n ffff: Formats.DATETIME_HUGE,\n F: Formats.DATETIME_SHORT_WITH_SECONDS,\n FF: Formats.DATETIME_MED_WITH_SECONDS,\n FFF: Formats.DATETIME_FULL_WITH_SECONDS,\n FFFF: Formats.DATETIME_HUGE_WITH_SECONDS,\n};\n\n/**\n * @private\n */\n\nexport default class Formatter {\n static create(locale, opts = {}) {\n return new Formatter(locale, opts);\n }\n\n static parseFormat(fmt) {\n let current = null,\n currentFull = \"\",\n bracketed = false;\n const splits = [];\n for (let i = 0; i < fmt.length; i++) {\n const c = fmt.charAt(i);\n if (c === \"'\") {\n if (currentFull.length > 0) {\n splits.push({ literal: bracketed, val: currentFull });\n }\n current = null;\n currentFull = \"\";\n bracketed = !bracketed;\n } else if (bracketed) {\n currentFull += c;\n } else if (c === current) {\n currentFull += c;\n } else {\n if (currentFull.length > 0) {\n splits.push({ literal: false, val: currentFull });\n }\n currentFull = c;\n current = c;\n }\n }\n\n if (currentFull.length > 0) {\n splits.push({ literal: bracketed, val: currentFull });\n }\n\n return splits;\n }\n\n static macroTokenToFormatOpts(token) {\n return macroTokenToFormatOpts[token];\n }\n\n constructor(locale, formatOpts) {\n this.opts = formatOpts;\n this.loc = locale;\n this.systemLoc = null;\n }\n\n formatWithSystemDefault(dt, opts) {\n if (this.systemLoc === null) {\n this.systemLoc = this.loc.redefaultToSystem();\n }\n const df = this.systemLoc.dtFormatter(dt, { ...this.opts, ...opts });\n return df.format();\n }\n\n formatDateTime(dt, opts = {}) {\n const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });\n return df.format();\n }\n\n formatDateTimeParts(dt, opts = {}) {\n const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });\n return df.formatToParts();\n }\n\n resolvedOptions(dt, opts = {}) {\n const df = this.loc.dtFormatter(dt, { ...this.opts, ...opts });\n return df.resolvedOptions();\n }\n\n num(n, p = 0) {\n // we get some perf out of doing this here, annoyingly\n if (this.opts.forceSimple) {\n return padStart(n, p);\n }\n\n const opts = { ...this.opts };\n\n if (p > 0) {\n opts.padTo = p;\n }\n\n return this.loc.numberFormatter(opts).format(n);\n }\n\n formatDateTimeFromString(dt, fmt) {\n const knownEnglish = this.loc.listingMode() === \"en\",\n useDateTimeFormatter = this.loc.outputCalendar && this.loc.outputCalendar !== \"gregory\",\n string = (opts, extract) => this.loc.extract(dt, opts, extract),\n formatOffset = (opts) => {\n if (dt.isOffsetFixed && dt.offset === 0 && opts.allowZ) {\n return \"Z\";\n }\n\n return dt.isValid ? dt.zone.formatOffset(dt.ts, opts.format) : \"\";\n },\n meridiem = () =>\n knownEnglish\n ? English.meridiemForDateTime(dt)\n : string({ hour: \"numeric\", hourCycle: \"h12\" }, \"dayperiod\"),\n month = (length, standalone) =>\n knownEnglish\n ? English.monthForDateTime(dt, length)\n : string(standalone ? { month: length } : { month: length, day: \"numeric\" }, \"month\"),\n weekday = (length, standalone) =>\n knownEnglish\n ? English.weekdayForDateTime(dt, length)\n : string(\n standalone ? { weekday: length } : { weekday: length, month: \"long\", day: \"numeric\" },\n \"weekday\"\n ),\n maybeMacro = (token) => {\n const formatOpts = Formatter.macroTokenToFormatOpts(token);\n if (formatOpts) {\n return this.formatWithSystemDefault(dt, formatOpts);\n } else {\n return token;\n }\n },\n era = (length) =>\n knownEnglish ? English.eraForDateTime(dt, length) : string({ era: length }, \"era\"),\n tokenToString = (token) => {\n // Where possible: http://cldr.unicode.org/translation/date-time-1/date-time#TOC-Standalone-vs.-Format-Styles\n switch (token) {\n // ms\n case \"S\":\n return this.num(dt.millisecond);\n case \"u\":\n // falls through\n case \"SSS\":\n return this.num(dt.millisecond, 3);\n // seconds\n case \"s\":\n return this.num(dt.second);\n case \"ss\":\n return this.num(dt.second, 2);\n // fractional seconds\n case \"uu\":\n return this.num(Math.floor(dt.millisecond / 10), 2);\n case \"uuu\":\n return this.num(Math.floor(dt.millisecond / 100));\n // minutes\n case \"m\":\n return this.num(dt.minute);\n case \"mm\":\n return this.num(dt.minute, 2);\n // hours\n case \"h\":\n return this.num(dt.hour % 12 === 0 ? 12 : dt.hour % 12);\n case \"hh\":\n return this.num(dt.hour % 12 === 0 ? 12 : dt.hour % 12, 2);\n case \"H\":\n return this.num(dt.hour);\n case \"HH\":\n return this.num(dt.hour, 2);\n // offset\n case \"Z\":\n // like +6\n return formatOffset({ format: \"narrow\", allowZ: this.opts.allowZ });\n case \"ZZ\":\n // like +06:00\n return formatOffset({ format: \"short\", allowZ: this.opts.allowZ });\n case \"ZZZ\":\n // like +0600\n return formatOffset({ format: \"techie\", allowZ: this.opts.allowZ });\n case \"ZZZZ\":\n // like EST\n return dt.zone.offsetName(dt.ts, { format: \"short\", locale: this.loc.locale });\n case \"ZZZZZ\":\n // like Eastern Standard Time\n return dt.zone.offsetName(dt.ts, { format: \"long\", locale: this.loc.locale });\n // zone\n case \"z\":\n // like America/New_York\n return dt.zoneName;\n // meridiems\n case \"a\":\n return meridiem();\n // dates\n case \"d\":\n return useDateTimeFormatter ? string({ day: \"numeric\" }, \"day\") : this.num(dt.day);\n case \"dd\":\n return useDateTimeFormatter ? string({ day: \"2-digit\" }, \"day\") : this.num(dt.day, 2);\n // weekdays - standalone\n case \"c\":\n // like 1\n return this.num(dt.weekday);\n case \"ccc\":\n // like 'Tues'\n return weekday(\"short\", true);\n case \"cccc\":\n // like 'Tuesday'\n return weekday(\"long\", true);\n case \"ccccc\":\n // like 'T'\n return weekday(\"narrow\", true);\n // weekdays - format\n case \"E\":\n // like 1\n return this.num(dt.weekday);\n case \"EEE\":\n // like 'Tues'\n return weekday(\"short\", false);\n case \"EEEE\":\n // like 'Tuesday'\n return weekday(\"long\", false);\n case \"EEEEE\":\n // like 'T'\n return weekday(\"narrow\", false);\n // months - standalone\n case \"L\":\n // like 1\n return useDateTimeFormatter\n ? string({ month: \"numeric\", day: \"numeric\" }, \"month\")\n : this.num(dt.month);\n case \"LL\":\n // like 01, doesn't seem to work\n return useDateTimeFormatter\n ? string({ month: \"2-digit\", day: \"numeric\" }, \"month\")\n : this.num(dt.month, 2);\n case \"LLL\":\n // like Jan\n return month(\"short\", true);\n case \"LLLL\":\n // like January\n return month(\"long\", true);\n case \"LLLLL\":\n // like J\n return month(\"narrow\", true);\n // months - format\n case \"M\":\n // like 1\n return useDateTimeFormatter\n ? string({ month: \"numeric\" }, \"month\")\n : this.num(dt.month);\n case \"MM\":\n // like 01\n return useDateTimeFormatter\n ? string({ month: \"2-digit\" }, \"month\")\n : this.num(dt.month, 2);\n case \"MMM\":\n // like Jan\n return month(\"short\", false);\n case \"MMMM\":\n // like January\n return month(\"long\", false);\n case \"MMMMM\":\n // like J\n return month(\"narrow\", false);\n // years\n case \"y\":\n // like 2014\n return useDateTimeFormatter ? string({ year: \"numeric\" }, \"year\") : this.num(dt.year);\n case \"yy\":\n // like 14\n return useDateTimeFormatter\n ? string({ year: \"2-digit\" }, \"year\")\n : this.num(dt.year.toString().slice(-2), 2);\n case \"yyyy\":\n // like 0012\n return useDateTimeFormatter\n ? string({ year: \"numeric\" }, \"year\")\n : this.num(dt.year, 4);\n case \"yyyyyy\":\n // like 000012\n return useDateTimeFormatter\n ? string({ year: \"numeric\" }, \"year\")\n : this.num(dt.year, 6);\n // eras\n case \"G\":\n // like AD\n return era(\"short\");\n case \"GG\":\n // like Anno Domini\n return era(\"long\");\n case \"GGGGG\":\n return era(\"narrow\");\n case \"kk\":\n return this.num(dt.weekYear.toString().slice(-2), 2);\n case \"kkkk\":\n return this.num(dt.weekYear, 4);\n case \"W\":\n return this.num(dt.weekNumber);\n case \"WW\":\n return this.num(dt.weekNumber, 2);\n case \"o\":\n return this.num(dt.ordinal);\n case \"ooo\":\n return this.num(dt.ordinal, 3);\n case \"q\":\n // like 1\n return this.num(dt.quarter);\n case \"qq\":\n // like 01\n return this.num(dt.quarter, 2);\n case \"X\":\n return this.num(Math.floor(dt.ts / 1000));\n case \"x\":\n return this.num(dt.ts);\n default:\n return maybeMacro(token);\n }\n };\n\n return stringifyTokens(Formatter.parseFormat(fmt), tokenToString);\n }\n\n formatDurationFromString(dur, fmt) {\n const tokenToField = (token) => {\n switch (token[0]) {\n case \"S\":\n return \"millisecond\";\n case \"s\":\n return \"second\";\n case \"m\":\n return \"minute\";\n case \"h\":\n return \"hour\";\n case \"d\":\n return \"day\";\n case \"M\":\n return \"month\";\n case \"y\":\n return \"year\";\n default:\n return null;\n }\n },\n tokenToString = (lildur) => (token) => {\n const mapped = tokenToField(token);\n if (mapped) {\n return this.num(lildur.get(mapped), token.length);\n } else {\n return token;\n }\n },\n tokens = Formatter.parseFormat(fmt),\n realTokens = tokens.reduce(\n (found, { literal, val }) => (literal ? found : found.concat(val)),\n []\n ),\n collapsed = dur.shiftTo(...realTokens.map(tokenToField).filter((t) => t));\n return stringifyTokens(tokens, tokenToString(collapsed));\n }\n}\n","export default class Invalid {\n constructor(reason, explanation) {\n this.reason = reason;\n this.explanation = explanation;\n }\n\n toMessage() {\n if (this.explanation) {\n return `${this.reason}: ${this.explanation}`;\n } else {\n return this.reason;\n }\n }\n}\n","import { ZoneIsAbstractError } from \"./errors.js\";\n\n/**\n * @interface\n */\nexport default class Zone {\n /**\n * The type of zone\n * @abstract\n * @type {string}\n */\n get type() {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * The name of this zone.\n * @abstract\n * @type {string}\n */\n get name() {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Returns whether the offset is known to be fixed for the whole year.\n * @abstract\n * @type {boolean}\n */\n get isUniversal() {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Returns the offset's common name (such as EST) at the specified timestamp\n * @abstract\n * @param {number} ts - Epoch milliseconds for which to get the name\n * @param {Object} opts - Options to affect the format\n * @param {string} opts.format - What style of offset to return. Accepts 'long' or 'short'.\n * @param {string} opts.locale - What locale to return the offset name in.\n * @return {string}\n */\n offsetName(ts, opts) {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Returns the offset's value as a string\n * @abstract\n * @param {number} ts - Epoch milliseconds for which to get the offset\n * @param {string} format - What style of offset to return.\n * Accepts 'narrow', 'short', or 'techie'. Returning '+6', '+06:00', or '+0600' respectively\n * @return {string}\n */\n formatOffset(ts, format) {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Return the offset in minutes for this zone at the specified timestamp.\n * @abstract\n * @param {number} ts - Epoch milliseconds for which to compute the offset\n * @return {number}\n */\n offset(ts) {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Return whether this Zone is equal to another zone\n * @abstract\n * @param {Zone} otherZone - the zone to compare\n * @return {boolean}\n */\n equals(otherZone) {\n throw new ZoneIsAbstractError();\n }\n\n /**\n * Return whether this Zone is valid.\n * @abstract\n * @type {boolean}\n */\n get isValid() {\n throw new ZoneIsAbstractError();\n }\n}\n","import { formatOffset, parseZoneInfo } from \"../impl/util.js\";\nimport Zone from \"../zone.js\";\n\nlet singleton = null;\n\n/**\n * Represents the local zone for this JavaScript environment.\n * @implements {Zone}\n */\nexport default class SystemZone extends Zone {\n /**\n * Get a singleton instance of the local zone\n * @return {SystemZone}\n */\n static get instance() {\n if (singleton === null) {\n singleton = new SystemZone();\n }\n return singleton;\n }\n\n /** @override **/\n get type() {\n return \"system\";\n }\n\n /** @override **/\n get name() {\n return new Intl.DateTimeFormat().resolvedOptions().timeZone;\n }\n\n /** @override **/\n get isUniversal() {\n return false;\n }\n\n /** @override **/\n offsetName(ts, { format, locale }) {\n return parseZoneInfo(ts, format, locale);\n }\n\n /** @override **/\n formatOffset(ts, format) {\n return formatOffset(this.offset(ts), format);\n }\n\n /** @override **/\n offset(ts) {\n return -new Date(ts).getTimezoneOffset();\n }\n\n /** @override **/\n equals(otherZone) {\n return otherZone.type === \"system\";\n }\n\n /** @override **/\n get isValid() {\n return true;\n }\n}\n","import { formatOffset, parseZoneInfo, isUndefined, ianaRegex, objToLocalTS } from \"../impl/util.js\";\nimport Zone from \"../zone.js\";\n\nconst matchingRegex = RegExp(`^${ianaRegex.source}$`);\n\nlet dtfCache = {};\nfunction makeDTF(zone) {\n if (!dtfCache[zone]) {\n dtfCache[zone] = new Intl.DateTimeFormat(\"en-US\", {\n hour12: false,\n timeZone: zone,\n year: \"numeric\",\n month: \"2-digit\",\n day: \"2-digit\",\n hour: \"2-digit\",\n minute: \"2-digit\",\n second: \"2-digit\",\n });\n }\n return dtfCache[zone];\n}\n\nconst typeToPos = {\n year: 0,\n month: 1,\n day: 2,\n hour: 3,\n minute: 4,\n second: 5,\n};\n\nfunction hackyOffset(dtf, date) {\n const formatted = dtf.format(date).replace(/\\u200E/g, \"\"),\n parsed = /(\\d+)\\/(\\d+)\\/(\\d+),? (\\d+):(\\d+):(\\d+)/.exec(formatted),\n [, fMonth, fDay, fYear, fHour, fMinute, fSecond] = parsed;\n return [fYear, fMonth, fDay, fHour, fMinute, fSecond];\n}\n\nfunction partsOffset(dtf, date) {\n const formatted = dtf.formatToParts(date),\n filled = [];\n for (let i = 0; i < formatted.length; i++) {\n const { type, value } = formatted[i],\n pos = typeToPos[type];\n\n if (!isUndefined(pos)) {\n filled[pos] = parseInt(value, 10);\n }\n }\n return filled;\n}\n\nlet ianaZoneCache = {};\n/**\n * A zone identified by an IANA identifier, like America/New_York\n * @implements {Zone}\n */\nexport default class IANAZone extends Zone {\n /**\n * @param {string} name - Zone name\n * @return {IANAZone}\n */\n static create(name) {\n if (!ianaZoneCache[name]) {\n ianaZoneCache[name] = new IANAZone(name);\n }\n return ianaZoneCache[name];\n }\n\n /**\n * Reset local caches. Should only be necessary in testing scenarios.\n * @return {void}\n */\n static resetCache() {\n ianaZoneCache = {};\n dtfCache = {};\n }\n\n /**\n * Returns whether the provided string is a valid specifier. This only checks the string's format, not that the specifier identifies a known zone; see isValidZone for that.\n * @param {string} s - The string to check validity on\n * @example IANAZone.isValidSpecifier(\"America/New_York\") //=> true\n * @example IANAZone.isValidSpecifier(\"Sport~~blorp\") //=> false\n * @deprecated This method returns false some valid IANA names. Use isValidZone instead\n * @return {boolean}\n */\n static isValidSpecifier(s) {\n return this.isValidZone(s);\n }\n\n /**\n * Returns whether the provided string identifies a real zone\n * @param {string} zone - The string to check\n * @example IANAZone.isValidZone(\"America/New_York\") //=> true\n * @example IANAZone.isValidZone(\"Fantasia/Castle\") //=> false\n * @example IANAZone.isValidZone(\"Sport~~blorp\") //=> false\n * @return {boolean}\n */\n static isValidZone(zone) {\n if (!zone) {\n return false;\n }\n try {\n new Intl.DateTimeFormat(\"en-US\", { timeZone: zone }).format();\n return true;\n } catch (e) {\n return false;\n }\n }\n\n constructor(name) {\n super();\n /** @private **/\n this.zoneName = name;\n /** @private **/\n this.valid = IANAZone.isValidZone(name);\n }\n\n /** @override **/\n get type() {\n return \"iana\";\n }\n\n /** @override **/\n get name() {\n return this.zoneName;\n }\n\n /** @override **/\n get isUniversal() {\n return false;\n }\n\n /** @override **/\n offsetName(ts, { format, locale }) {\n return parseZoneInfo(ts, format, locale, this.name);\n }\n\n /** @override **/\n formatOffset(ts, format) {\n return formatOffset(this.offset(ts), format);\n }\n\n /** @override **/\n offset(ts) {\n const date = new Date(ts);\n\n if (isNaN(date)) return NaN;\n\n const dtf = makeDTF(this.name),\n [year, month, day, hour, minute, second] = dtf.formatToParts\n ? partsOffset(dtf, date)\n : hackyOffset(dtf, date);\n\n // because we're using hour12 and https://bugs.chromium.org/p/chromium/issues/detail?id=1025564&can=2&q=%2224%3A00%22%20datetimeformat\n const adjustedHour = hour === 24 ? 0 : hour;\n\n const asUTC = objToLocalTS({\n year,\n month,\n day,\n hour: adjustedHour,\n minute,\n second,\n millisecond: 0,\n });\n\n let asTS = +date;\n const over = asTS % 1000;\n asTS -= over >= 0 ? over : 1000 + over;\n return (asUTC - asTS) / (60 * 1000);\n }\n\n /** @override **/\n equals(otherZone) {\n return otherZone.type === \"iana\" && otherZone.name === this.name;\n }\n\n /** @override **/\n get isValid() {\n return this.valid;\n }\n}\n","import { formatOffset, signedOffset } from \"../impl/util.js\";\nimport Zone from \"../zone.js\";\n\nlet singleton = null;\n\n/**\n * A zone with a fixed offset (meaning no DST)\n * @implements {Zone}\n */\nexport default class FixedOffsetZone extends Zone {\n /**\n * Get a singleton instance of UTC\n * @return {FixedOffsetZone}\n */\n static get utcInstance() {\n if (singleton === null) {\n singleton = new FixedOffsetZone(0);\n }\n return singleton;\n }\n\n /**\n * Get an instance with a specified offset\n * @param {number} offset - The offset in minutes\n * @return {FixedOffsetZone}\n */\n static instance(offset) {\n return offset === 0 ? FixedOffsetZone.utcInstance : new FixedOffsetZone(offset);\n }\n\n /**\n * Get an instance of FixedOffsetZone from a UTC offset string, like \"UTC+6\"\n * @param {string} s - The offset string to parse\n * @example FixedOffsetZone.parseSpecifier(\"UTC+6\")\n * @example FixedOffsetZone.parseSpecifier(\"UTC+06\")\n * @example FixedOffsetZone.parseSpecifier(\"UTC-6:00\")\n * @return {FixedOffsetZone}\n */\n static parseSpecifier(s) {\n if (s) {\n const r = s.match(/^utc(?:([+-]\\d{1,2})(?::(\\d{2}))?)?$/i);\n if (r) {\n return new FixedOffsetZone(signedOffset(r[1], r[2]));\n }\n }\n return null;\n }\n\n constructor(offset) {\n super();\n /** @private **/\n this.fixed = offset;\n }\n\n /** @override **/\n get type() {\n return \"fixed\";\n }\n\n /** @override **/\n get name() {\n return this.fixed === 0 ? \"UTC\" : `UTC${formatOffset(this.fixed, \"narrow\")}`;\n }\n\n /** @override **/\n offsetName() {\n return this.name;\n }\n\n /** @override **/\n formatOffset(ts, format) {\n return formatOffset(this.fixed, format);\n }\n\n /** @override **/\n get isUniversal() {\n return true;\n }\n\n /** @override **/\n offset() {\n return this.fixed;\n }\n\n /** @override **/\n equals(otherZone) {\n return otherZone.type === \"fixed\" && otherZone.fixed === this.fixed;\n }\n\n /** @override **/\n get isValid() {\n return true;\n }\n}\n","import Zone from \"../zone.js\";\n\n/**\n * A zone that failed to parse. You should never need to instantiate this.\n * @implements {Zone}\n */\nexport default class InvalidZone extends Zone {\n constructor(zoneName) {\n super();\n /** @private */\n this.zoneName = zoneName;\n }\n\n /** @override **/\n get type() {\n return \"invalid\";\n }\n\n /** @override **/\n get name() {\n return this.zoneName;\n }\n\n /** @override **/\n get isUniversal() {\n return false;\n }\n\n /** @override **/\n offsetName() {\n return null;\n }\n\n /** @override **/\n formatOffset() {\n return \"\";\n }\n\n /** @override **/\n offset() {\n return NaN;\n }\n\n /** @override **/\n equals() {\n return false;\n }\n\n /** @override **/\n get isValid() {\n return false;\n }\n}\n","/**\n * @private\n */\n\nimport Zone from \"../zone.js\";\nimport IANAZone from \"../zones/IANAZone.js\";\nimport FixedOffsetZone from \"../zones/fixedOffsetZone.js\";\nimport InvalidZone from \"../zones/invalidZone.js\";\n\nimport { isUndefined, isString, isNumber } from \"./util.js\";\n\nexport function normalizeZone(input, defaultZone) {\n let offset;\n if (isUndefined(input) || input === null) {\n return defaultZone;\n } else if (input instanceof Zone) {\n return input;\n } else if (isString(input)) {\n const lowered = input.toLowerCase();\n if (lowered === \"local\" || lowered === \"system\") return defaultZone;\n else if (lowered === \"utc\" || lowered === \"gmt\") return FixedOffsetZone.utcInstance;\n else return FixedOffsetZone.parseSpecifier(lowered) || IANAZone.create(input);\n } else if (isNumber(input)) {\n return FixedOffsetZone.instance(input);\n } else if (typeof input === \"object\" && input.offset && typeof input.offset === \"number\") {\n // This is dumb, but the instanceof check above doesn't seem to really work\n // so we're duck checking it\n return input;\n } else {\n return new InvalidZone(input);\n }\n}\n","import SystemZone from \"./zones/systemZone.js\";\nimport IANAZone from \"./zones/IANAZone.js\";\nimport Locale from \"./impl/locale.js\";\n\nimport { normalizeZone } from \"./impl/zoneUtil.js\";\n\nlet now = () => Date.now(),\n defaultZone = \"system\",\n defaultLocale = null,\n defaultNumberingSystem = null,\n defaultOutputCalendar = null,\n throwOnInvalid;\n\n/**\n * Settings contains static getters and setters that control Luxon's overall behavior. Luxon is a simple library with few options, but the ones it does have live here.\n */\nexport default class Settings {\n /**\n * Get the callback for returning the current timestamp.\n * @type {function}\n */\n static get now() {\n return now;\n }\n\n /**\n * Set the callback for returning the current timestamp.\n * The function should return a number, which will be interpreted as an Epoch millisecond count\n * @type {function}\n * @example Settings.now = () => Date.now() + 3000 // pretend it is 3 seconds in the future\n * @example Settings.now = () => 0 // always pretend it's Jan 1, 1970 at midnight in UTC time\n */\n static set now(n) {\n now = n;\n }\n\n /**\n * Set the default time zone to create DateTimes in. Does not affect existing instances.\n * Use the value \"system\" to reset this value to the system's time zone.\n * @type {string}\n */\n static set defaultZone(zone) {\n defaultZone = zone;\n }\n\n /**\n * Get the default time zone object currently used to create DateTimes. Does not affect existing instances.\n * The default value is the system's time zone (the one set on the machine that runs this code).\n * @type {Zone}\n */\n static get defaultZone() {\n return normalizeZone(defaultZone, SystemZone.instance);\n }\n\n /**\n * Get the default locale to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static get defaultLocale() {\n return defaultLocale;\n }\n\n /**\n * Set the default locale to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static set defaultLocale(locale) {\n defaultLocale = locale;\n }\n\n /**\n * Get the default numbering system to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static get defaultNumberingSystem() {\n return defaultNumberingSystem;\n }\n\n /**\n * Set the default numbering system to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static set defaultNumberingSystem(numberingSystem) {\n defaultNumberingSystem = numberingSystem;\n }\n\n /**\n * Get the default output calendar to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static get defaultOutputCalendar() {\n return defaultOutputCalendar;\n }\n\n /**\n * Set the default output calendar to create DateTimes with. Does not affect existing instances.\n * @type {string}\n */\n static set defaultOutputCalendar(outputCalendar) {\n defaultOutputCalendar = outputCalendar;\n }\n\n /**\n * Get whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals\n * @type {boolean}\n */\n static get throwOnInvalid() {\n return throwOnInvalid;\n }\n\n /**\n * Set whether Luxon will throw when it encounters invalid DateTimes, Durations, or Intervals\n * @type {boolean}\n */\n static set throwOnInvalid(t) {\n throwOnInvalid = t;\n }\n\n /**\n * Reset Luxon's global caches. Should only be necessary in testing scenarios.\n * @return {void}\n */\n static resetCaches() {\n Locale.resetCache();\n IANAZone.resetCache();\n }\n}\n","import { padStart, roundTo, hasRelative } from \"./util.js\";\nimport * as English from \"./english.js\";\nimport Settings from \"../settings.js\";\nimport DateTime from \"../datetime.js\";\nimport IANAZone from \"../zones/IANAZone.js\";\n\n// todo - remap caching\n\nlet intlLFCache = {};\nfunction getCachedLF(locString, opts = {}) {\n const key = JSON.stringify([locString, opts]);\n let dtf = intlLFCache[key];\n if (!dtf) {\n dtf = new Intl.ListFormat(locString, opts);\n intlLFCache[key] = dtf;\n }\n return dtf;\n}\n\nlet intlDTCache = {};\nfunction getCachedDTF(locString, opts = {}) {\n const key = JSON.stringify([locString, opts]);\n let dtf = intlDTCache[key];\n if (!dtf) {\n dtf = new Intl.DateTimeFormat(locString, opts);\n intlDTCache[key] = dtf;\n }\n return dtf;\n}\n\nlet intlNumCache = {};\nfunction getCachedINF(locString, opts = {}) {\n const key = JSON.stringify([locString, opts]);\n let inf = intlNumCache[key];\n if (!inf) {\n inf = new Intl.NumberFormat(locString, opts);\n intlNumCache[key] = inf;\n }\n return inf;\n}\n\nlet intlRelCache = {};\nfunction getCachedRTF(locString, opts = {}) {\n const { base, ...cacheKeyOpts } = opts; // exclude `base` from the options\n const key = JSON.stringify([locString, cacheKeyOpts]);\n let inf = intlRelCache[key];\n if (!inf) {\n inf = new Intl.RelativeTimeFormat(locString, opts);\n intlRelCache[key] = inf;\n }\n return inf;\n}\n\nlet sysLocaleCache = null;\nfunction systemLocale() {\n if (sysLocaleCache) {\n return sysLocaleCache;\n } else {\n sysLocaleCache = new Intl.DateTimeFormat().resolvedOptions().locale;\n return sysLocaleCache;\n }\n}\n\nfunction parseLocaleString(localeStr) {\n // I really want to avoid writing a BCP 47 parser\n // see, e.g. https://github.com/wooorm/bcp-47\n // Instead, we'll do this:\n\n // a) if the string has no -u extensions, just leave it alone\n // b) if it does, use Intl to resolve everything\n // c) if Intl fails, try again without the -u\n\n const uIndex = localeStr.indexOf(\"-u-\");\n if (uIndex === -1) {\n return [localeStr];\n } else {\n let options;\n const smaller = localeStr.substring(0, uIndex);\n try {\n options = getCachedDTF(localeStr).resolvedOptions();\n } catch (e) {\n options = getCachedDTF(smaller).resolvedOptions();\n }\n\n const { numberingSystem, calendar } = options;\n // return the smaller one so that we can append the calendar and numbering overrides to it\n return [smaller, numberingSystem, calendar];\n }\n}\n\nfunction intlConfigString(localeStr, numberingSystem, outputCalendar) {\n if (outputCalendar || numberingSystem) {\n localeStr += \"-u\";\n\n if (outputCalendar) {\n localeStr += `-ca-${outputCalendar}`;\n }\n\n if (numberingSystem) {\n localeStr += `-nu-${numberingSystem}`;\n }\n return localeStr;\n } else {\n return localeStr;\n }\n}\n\nfunction mapMonths(f) {\n const ms = [];\n for (let i = 1; i <= 12; i++) {\n const dt = DateTime.utc(2016, i, 1);\n ms.push(f(dt));\n }\n return ms;\n}\n\nfunction mapWeekdays(f) {\n const ms = [];\n for (let i = 1; i <= 7; i++) {\n const dt = DateTime.utc(2016, 11, 13 + i);\n ms.push(f(dt));\n }\n return ms;\n}\n\nfunction listStuff(loc, length, defaultOK, englishFn, intlFn) {\n const mode = loc.listingMode(defaultOK);\n\n if (mode === \"error\") {\n return null;\n } else if (mode === \"en\") {\n return englishFn(length);\n } else {\n return intlFn(length);\n }\n}\n\nfunction supportsFastNumbers(loc) {\n if (loc.numberingSystem && loc.numberingSystem !== \"latn\") {\n return false;\n } else {\n return (\n loc.numberingSystem === \"latn\" ||\n !loc.locale ||\n loc.locale.startsWith(\"en\") ||\n new Intl.DateTimeFormat(loc.intl).resolvedOptions().numberingSystem === \"latn\"\n );\n }\n}\n\n/**\n * @private\n */\n\nclass PolyNumberFormatter {\n constructor(intl, forceSimple, opts) {\n this.padTo = opts.padTo || 0;\n this.floor = opts.floor || false;\n\n const { padTo, floor, ...otherOpts } = opts;\n\n if (!forceSimple || Object.keys(otherOpts).length > 0) {\n const intlOpts = { useGrouping: false, ...opts };\n if (opts.padTo > 0) intlOpts.minimumIntegerDigits = opts.padTo;\n this.inf = getCachedINF(intl, intlOpts);\n }\n }\n\n format(i) {\n if (this.inf) {\n const fixed = this.floor ? Math.floor(i) : i;\n return this.inf.format(fixed);\n } else {\n // to match the browser's numberformatter defaults\n const fixed = this.floor ? Math.floor(i) : roundTo(i, 3);\n return padStart(fixed, this.padTo);\n }\n }\n}\n\n/**\n * @private\n */\n\nclass PolyDateFormatter {\n constructor(dt, intl, opts) {\n this.opts = opts;\n\n let z;\n if (dt.zone.isUniversal) {\n // UTC-8 or Etc/UTC-8 are not part of tzdata, only Etc/GMT+8 and the like.\n // That is why fixed-offset TZ is set to that unless it is:\n // 1. Representing offset 0 when UTC is used to maintain previous behavior and does not become GMT.\n // 2. Unsupported by the browser:\n // - some do not support Etc/\n // - < Etc/GMT-14, > Etc/GMT+12, and 30-minute or 45-minute offsets are not part of tzdata\n const gmtOffset = -1 * (dt.offset / 60);\n const offsetZ = gmtOffset >= 0 ? `Etc/GMT+${gmtOffset}` : `Etc/GMT${gmtOffset}`;\n if (dt.offset !== 0 && IANAZone.create(offsetZ).valid) {\n z = offsetZ;\n this.dt = dt;\n } else {\n // Not all fixed-offset zones like Etc/+4:30 are present in tzdata.\n // So we have to make do. Two cases:\n // 1. The format options tell us to show the zone. We can't do that, so the best\n // we can do is format the date in UTC.\n // 2. The format options don't tell us to show the zone. Then we can adjust them\n // the time and tell the formatter to show it to us in UTC, so that the time is right\n // and the bad zone doesn't show up.\n z = \"UTC\";\n if (opts.timeZoneName) {\n this.dt = dt;\n } else {\n this.dt = dt.offset === 0 ? dt : DateTime.fromMillis(dt.ts + dt.offset * 60 * 1000);\n }\n }\n } else if (dt.zone.type === \"system\") {\n this.dt = dt;\n } else {\n this.dt = dt;\n z = dt.zone.name;\n }\n\n const intlOpts = { ...this.opts };\n if (z) {\n intlOpts.timeZone = z;\n }\n this.dtf = getCachedDTF(intl, intlOpts);\n }\n\n format() {\n return this.dtf.format(this.dt.toJSDate());\n }\n\n formatToParts() {\n return this.dtf.formatToParts(this.dt.toJSDate());\n }\n\n resolvedOptions() {\n return this.dtf.resolvedOptions();\n }\n}\n\n/**\n * @private\n */\nclass PolyRelFormatter {\n constructor(intl, isEnglish, opts) {\n this.opts = { style: \"long\", ...opts };\n if (!isEnglish && hasRelative()) {\n this.rtf = getCachedRTF(intl, opts);\n }\n }\n\n format(count, unit) {\n if (this.rtf) {\n return this.rtf.format(count, unit);\n } else {\n return English.formatRelativeTime(unit, count, this.opts.numeric, this.opts.style !== \"long\");\n }\n }\n\n formatToParts(count, unit) {\n if (this.rtf) {\n return this.rtf.formatToParts(count, unit);\n } else {\n return [];\n }\n }\n}\n\n/**\n * @private\n */\n\nexport default class Locale {\n static fromOpts(opts) {\n return Locale.create(opts.locale, opts.numberingSystem, opts.outputCalendar, opts.defaultToEN);\n }\n\n static create(locale, numberingSystem, outputCalendar, defaultToEN = false) {\n const specifiedLocale = locale || Settings.defaultLocale;\n // the system locale is useful for human readable strings but annoying for parsing/formatting known formats\n const localeR = specifiedLocale || (defaultToEN ? \"en-US\" : systemLocale());\n const numberingSystemR = numberingSystem || Settings.defaultNumberingSystem;\n const outputCalendarR = outputCalendar || Settings.defaultOutputCalendar;\n return new Locale(localeR, numberingSystemR, outputCalendarR, specifiedLocale);\n }\n\n static resetCache() {\n sysLocaleCache = null;\n intlDTCache = {};\n intlNumCache = {};\n intlRelCache = {};\n }\n\n static fromObject({ locale, numberingSystem, outputCalendar } = {}) {\n return Locale.create(locale, numberingSystem, outputCalendar);\n }\n\n constructor(locale, numbering, outputCalendar, specifiedLocale) {\n const [parsedLocale, parsedNumberingSystem, parsedOutputCalendar] = parseLocaleString(locale);\n\n this.locale = parsedLocale;\n this.numberingSystem = numbering || parsedNumberingSystem || null;\n this.outputCalendar = outputCalendar || parsedOutputCalendar || null;\n this.intl = intlConfigString(this.locale, this.numberingSystem, this.outputCalendar);\n\n this.weekdaysCache = { format: {}, standalone: {} };\n this.monthsCache = { format: {}, standalone: {} };\n this.meridiemCache = null;\n this.eraCache = {};\n\n this.specifiedLocale = specifiedLocale;\n this.fastNumbersCached = null;\n }\n\n get fastNumbers() {\n if (this.fastNumbersCached == null) {\n this.fastNumbersCached = supportsFastNumbers(this);\n }\n\n return this.fastNumbersCached;\n }\n\n listingMode() {\n const isActuallyEn = this.isEnglish();\n const hasNoWeirdness =\n (this.numberingSystem === null || this.numberingSystem === \"latn\") &&\n (this.outputCalendar === null || this.outputCalendar === \"gregory\");\n return isActuallyEn && hasNoWeirdness ? \"en\" : \"intl\";\n }\n\n clone(alts) {\n if (!alts || Object.getOwnPropertyNames(alts).length === 0) {\n return this;\n } else {\n return Locale.create(\n alts.locale || this.specifiedLocale,\n alts.numberingSystem || this.numberingSystem,\n alts.outputCalendar || this.outputCalendar,\n alts.defaultToEN || false\n );\n }\n }\n\n redefaultToEN(alts = {}) {\n return this.clone({ ...alts, defaultToEN: true });\n }\n\n redefaultToSystem(alts = {}) {\n return this.clone({ ...alts, defaultToEN: false });\n }\n\n months(length, format = false, defaultOK = true) {\n return listStuff(this, length, defaultOK, English.months, () => {\n const intl = format ? { month: length, day: \"numeric\" } : { month: length },\n formatStr = format ? \"format\" : \"standalone\";\n if (!this.monthsCache[formatStr][length]) {\n this.monthsCache[formatStr][length] = mapMonths((dt) => this.extract(dt, intl, \"month\"));\n }\n return this.monthsCache[formatStr][length];\n });\n }\n\n weekdays(length, format = false, defaultOK = true) {\n return listStuff(this, length, defaultOK, English.weekdays, () => {\n const intl = format\n ? { weekday: length, year: \"numeric\", month: \"long\", day: \"numeric\" }\n : { weekday: length },\n formatStr = format ? \"format\" : \"standalone\";\n if (!this.weekdaysCache[formatStr][length]) {\n this.weekdaysCache[formatStr][length] = mapWeekdays((dt) =>\n this.extract(dt, intl, \"weekday\")\n );\n }\n return this.weekdaysCache[formatStr][length];\n });\n }\n\n meridiems(defaultOK = true) {\n return listStuff(\n this,\n undefined,\n defaultOK,\n () => English.meridiems,\n () => {\n // In theory there could be aribitrary day periods. We're gonna assume there are exactly two\n // for AM and PM. This is probably wrong, but it's makes parsing way easier.\n if (!this.meridiemCache) {\n const intl = { hour: \"numeric\", hourCycle: \"h12\" };\n this.meridiemCache = [DateTime.utc(2016, 11, 13, 9), DateTime.utc(2016, 11, 13, 19)].map(\n (dt) => this.extract(dt, intl, \"dayperiod\")\n );\n }\n\n return this.meridiemCache;\n }\n );\n }\n\n eras(length, defaultOK = true) {\n return listStuff(this, length, defaultOK, English.eras, () => {\n const intl = { era: length };\n\n // This is problematic. Different calendars are going to define eras totally differently. What I need is the minimum set of dates\n // to definitely enumerate them.\n if (!this.eraCache[length]) {\n this.eraCache[length] = [DateTime.utc(-40, 1, 1), DateTime.utc(2017, 1, 1)].map((dt) =>\n this.extract(dt, intl, \"era\")\n );\n }\n\n return this.eraCache[length];\n });\n }\n\n extract(dt, intlOpts, field) {\n const df = this.dtFormatter(dt, intlOpts),\n results = df.formatToParts(),\n matching = results.find((m) => m.type.toLowerCase() === field);\n return matching ? matching.value : null;\n }\n\n numberFormatter(opts = {}) {\n // this forcesimple option is never used (the only caller short-circuits on it, but it seems safer to leave)\n // (in contrast, the rest of the condition is used heavily)\n return new PolyNumberFormatter(this.intl, opts.forceSimple || this.fastNumbers, opts);\n }\n\n dtFormatter(dt, intlOpts = {}) {\n return new PolyDateFormatter(dt, this.intl, intlOpts);\n }\n\n relFormatter(opts = {}) {\n return new PolyRelFormatter(this.intl, this.isEnglish(), opts);\n }\n\n listFormatter(opts = {}) {\n return getCachedLF(this.intl, opts);\n }\n\n isEnglish() {\n return (\n this.locale === \"en\" ||\n this.locale.toLowerCase() === \"en-us\" ||\n new Intl.DateTimeFormat(this.intl).resolvedOptions().locale.startsWith(\"en-us\")\n );\n }\n\n equals(other) {\n return (\n this.locale === other.locale &&\n this.numberingSystem === other.numberingSystem &&\n this.outputCalendar === other.outputCalendar\n );\n }\n}\n","import {\n untruncateYear,\n signedOffset,\n parseInteger,\n parseMillis,\n ianaRegex,\n isUndefined,\n parseFloating,\n} from \"./util.js\";\nimport * as English from \"./english.js\";\nimport FixedOffsetZone from \"../zones/fixedOffsetZone.js\";\nimport IANAZone from \"../zones/IANAZone.js\";\n\n/*\n * This file handles parsing for well-specified formats. Here's how it works:\n * Two things go into parsing: a regex to match with and an extractor to take apart the groups in the match.\n * An extractor is just a function that takes a regex match array and returns a { year: ..., month: ... } object\n * parse() does the work of executing the regex and applying the extractor. It takes multiple regex/extractor pairs to try in sequence.\n * Extractors can take a \"cursor\" representing the offset in the match to look at. This makes it easy to combine extractors.\n * combineExtractors() does the work of combining them, keeping track of the cursor through multiple extractions.\n * Some extractions are super dumb and simpleParse and fromStrings help DRY them.\n */\n\nfunction combineRegexes(...regexes) {\n const full = regexes.reduce((f, r) => f + r.source, \"\");\n return RegExp(`^${full}$`);\n}\n\nfunction combineExtractors(...extractors) {\n return (m) =>\n extractors\n .reduce(\n ([mergedVals, mergedZone, cursor], ex) => {\n const [val, zone, next] = ex(m, cursor);\n return [{ ...mergedVals, ...val }, mergedZone || zone, next];\n },\n [{}, null, 1]\n )\n .slice(0, 2);\n}\n\nfunction parse(s, ...patterns) {\n if (s == null) {\n return [null, null];\n }\n\n for (const [regex, extractor] of patterns) {\n const m = regex.exec(s);\n if (m) {\n return extractor(m);\n }\n }\n return [null, null];\n}\n\nfunction simpleParse(...keys) {\n return (match, cursor) => {\n const ret = {};\n let i;\n\n for (i = 0; i < keys.length; i++) {\n ret[keys[i]] = parseInteger(match[cursor + i]);\n }\n return [ret, null, cursor + i];\n };\n}\n\n// ISO and SQL parsing\nconst offsetRegex = /(?:(Z)|([+-]\\d\\d)(?::?(\\d\\d))?)/,\n isoTimeBaseRegex = /(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:[.,](\\d{1,30}))?)?)?/,\n isoTimeRegex = RegExp(`${isoTimeBaseRegex.source}${offsetRegex.source}?`),\n isoTimeExtensionRegex = RegExp(`(?:T${isoTimeRegex.source})?`),\n isoYmdRegex = /([+-]\\d{6}|\\d{4})(?:-?(\\d\\d)(?:-?(\\d\\d))?)?/,\n isoWeekRegex = /(\\d{4})-?W(\\d\\d)(?:-?(\\d))?/,\n isoOrdinalRegex = /(\\d{4})-?(\\d{3})/,\n extractISOWeekData = simpleParse(\"weekYear\", \"weekNumber\", \"weekDay\"),\n extractISOOrdinalData = simpleParse(\"year\", \"ordinal\"),\n sqlYmdRegex = /(\\d{4})-(\\d\\d)-(\\d\\d)/, // dumbed-down version of the ISO one\n sqlTimeRegex = RegExp(\n `${isoTimeBaseRegex.source} ?(?:${offsetRegex.source}|(${ianaRegex.source}))?`\n ),\n sqlTimeExtensionRegex = RegExp(`(?: ${sqlTimeRegex.source})?`);\n\nfunction int(match, pos, fallback) {\n const m = match[pos];\n return isUndefined(m) ? fallback : parseInteger(m);\n}\n\nfunction extractISOYmd(match, cursor) {\n const item = {\n year: int(match, cursor),\n month: int(match, cursor + 1, 1),\n day: int(match, cursor + 2, 1),\n };\n\n return [item, null, cursor + 3];\n}\n\nfunction extractISOTime(match, cursor) {\n const item = {\n hours: int(match, cursor, 0),\n minutes: int(match, cursor + 1, 0),\n seconds: int(match, cursor + 2, 0),\n milliseconds: parseMillis(match[cursor + 3]),\n };\n\n return [item, null, cursor + 4];\n}\n\nfunction extractISOOffset(match, cursor) {\n const local = !match[cursor] && !match[cursor + 1],\n fullOffset = signedOffset(match[cursor + 1], match[cursor + 2]),\n zone = local ? null : FixedOffsetZone.instance(fullOffset);\n return [{}, zone, cursor + 3];\n}\n\nfunction extractIANAZone(match, cursor) {\n const zone = match[cursor] ? IANAZone.create(match[cursor]) : null;\n return [{}, zone, cursor + 1];\n}\n\n// ISO time parsing\n\nconst isoTimeOnly = RegExp(`^T?${isoTimeBaseRegex.source}$`);\n\n// ISO duration parsing\n\nconst isoDuration =\n /^-?P(?:(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)Y)?(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)M)?(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)W)?(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)D)?(?:T(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)H)?(?:(-?\\d{1,9}(?:\\.\\d{1,9})?)M)?(?:(-?\\d{1,20})(?:[.,](-?\\d{1,9}))?S)?)?)$/;\n\nfunction extractISODuration(match) {\n const [s, yearStr, monthStr, weekStr, dayStr, hourStr, minuteStr, secondStr, millisecondsStr] =\n match;\n\n const hasNegativePrefix = s[0] === \"-\";\n const negativeSeconds = secondStr && secondStr[0] === \"-\";\n\n const maybeNegate = (num, force = false) =>\n num !== undefined && (force || (num && hasNegativePrefix)) ? -num : num;\n\n return [\n {\n years: maybeNegate(parseFloating(yearStr)),\n months: maybeNegate(parseFloating(monthStr)),\n weeks: maybeNegate(parseFloating(weekStr)),\n days: maybeNegate(parseFloating(dayStr)),\n hours: maybeNegate(parseFloating(hourStr)),\n minutes: maybeNegate(parseFloating(minuteStr)),\n seconds: maybeNegate(parseFloating(secondStr), secondStr === \"-0\"),\n milliseconds: maybeNegate(parseMillis(millisecondsStr), negativeSeconds),\n },\n ];\n}\n\n// These are a little braindead. EDT *should* tell us that we're in, say, America/New_York\n// and not just that we're in -240 *right now*. But since I don't think these are used that often\n// I'm just going to ignore that\nconst obsOffsets = {\n GMT: 0,\n EDT: -4 * 60,\n EST: -5 * 60,\n CDT: -5 * 60,\n CST: -6 * 60,\n MDT: -6 * 60,\n MST: -7 * 60,\n PDT: -7 * 60,\n PST: -8 * 60,\n};\n\nfunction fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {\n const result = {\n year: yearStr.length === 2 ? untruncateYear(parseInteger(yearStr)) : parseInteger(yearStr),\n month: English.monthsShort.indexOf(monthStr) + 1,\n day: parseInteger(dayStr),\n hour: parseInteger(hourStr),\n minute: parseInteger(minuteStr),\n };\n\n if (secondStr) result.second = parseInteger(secondStr);\n if (weekdayStr) {\n result.weekday =\n weekdayStr.length > 3\n ? English.weekdaysLong.indexOf(weekdayStr) + 1\n : English.weekdaysShort.indexOf(weekdayStr) + 1;\n }\n\n return result;\n}\n\n// RFC 2822/5322\nconst rfc2822 =\n /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),\\s)?(\\d{1,2})\\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\\s(\\d{2,4})\\s(\\d\\d):(\\d\\d)(?::(\\d\\d))?\\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|(?:([+-]\\d\\d)(\\d\\d)))$/;\n\nfunction extractRFC2822(match) {\n const [\n ,\n weekdayStr,\n dayStr,\n monthStr,\n yearStr,\n hourStr,\n minuteStr,\n secondStr,\n obsOffset,\n milOffset,\n offHourStr,\n offMinuteStr,\n ] = match,\n result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);\n\n let offset;\n if (obsOffset) {\n offset = obsOffsets[obsOffset];\n } else if (milOffset) {\n offset = 0;\n } else {\n offset = signedOffset(offHourStr, offMinuteStr);\n }\n\n return [result, new FixedOffsetZone(offset)];\n}\n\nfunction preprocessRFC2822(s) {\n // Remove comments and folding whitespace and replace multiple-spaces with a single space\n return s\n .replace(/\\([^)]*\\)|[\\n\\t]/g, \" \")\n .replace(/(\\s\\s+)/g, \" \")\n .trim();\n}\n\n// http date\n\nconst rfc1123 =\n /^(Mon|Tue|Wed|Thu|Fri|Sat|Sun), (\\d\\d) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) (\\d{4}) (\\d\\d):(\\d\\d):(\\d\\d) GMT$/,\n rfc850 =\n /^(Monday|Tuesday|Wedsday|Thursday|Friday|Saturday|Sunday), (\\d\\d)-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-(\\d\\d) (\\d\\d):(\\d\\d):(\\d\\d) GMT$/,\n ascii =\n /^(Mon|Tue|Wed|Thu|Fri|Sat|Sun) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) ( \\d|\\d\\d) (\\d\\d):(\\d\\d):(\\d\\d) (\\d{4})$/;\n\nfunction extractRFC1123Or850(match) {\n const [, weekdayStr, dayStr, monthStr, yearStr, hourStr, minuteStr, secondStr] = match,\n result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);\n return [result, FixedOffsetZone.utcInstance];\n}\n\nfunction extractASCII(match) {\n const [, weekdayStr, monthStr, dayStr, hourStr, minuteStr, secondStr, yearStr] = match,\n result = fromStrings(weekdayStr, yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr);\n return [result, FixedOffsetZone.utcInstance];\n}\n\nconst isoYmdWithTimeExtensionRegex = combineRegexes(isoYmdRegex, isoTimeExtensionRegex);\nconst isoWeekWithTimeExtensionRegex = combineRegexes(isoWeekRegex, isoTimeExtensionRegex);\nconst isoOrdinalWithTimeExtensionRegex = combineRegexes(isoOrdinalRegex, isoTimeExtensionRegex);\nconst isoTimeCombinedRegex = combineRegexes(isoTimeRegex);\n\nconst extractISOYmdTimeAndOffset = combineExtractors(\n extractISOYmd,\n extractISOTime,\n extractISOOffset\n);\nconst extractISOWeekTimeAndOffset = combineExtractors(\n extractISOWeekData,\n extractISOTime,\n extractISOOffset\n);\nconst extractISOOrdinalDateAndTime = combineExtractors(\n extractISOOrdinalData,\n extractISOTime,\n extractISOOffset\n);\nconst extractISOTimeAndOffset = combineExtractors(extractISOTime, extractISOOffset);\n\n/**\n * @private\n */\n\nexport function parseISODate(s) {\n return parse(\n s,\n [isoYmdWithTimeExtensionRegex, extractISOYmdTimeAndOffset],\n [isoWeekWithTimeExtensionRegex, extractISOWeekTimeAndOffset],\n [isoOrdinalWithTimeExtensionRegex, extractISOOrdinalDateAndTime],\n [isoTimeCombinedRegex, extractISOTimeAndOffset]\n );\n}\n\nexport function parseRFC2822Date(s) {\n return parse(preprocessRFC2822(s), [rfc2822, extractRFC2822]);\n}\n\nexport function parseHTTPDate(s) {\n return parse(\n s,\n [rfc1123, extractRFC1123Or850],\n [rfc850, extractRFC1123Or850],\n [ascii, extractASCII]\n );\n}\n\nexport function parseISODuration(s) {\n return parse(s, [isoDuration, extractISODuration]);\n}\n\nconst extractISOTimeOnly = combineExtractors(extractISOTime);\n\nexport function parseISOTimeOnly(s) {\n return parse(s, [isoTimeOnly, extractISOTimeOnly]);\n}\n\nconst sqlYmdWithTimeExtensionRegex = combineRegexes(sqlYmdRegex, sqlTimeExtensionRegex);\nconst sqlTimeCombinedRegex = combineRegexes(sqlTimeRegex);\n\nconst extractISOYmdTimeOffsetAndIANAZone = combineExtractors(\n extractISOYmd,\n extractISOTime,\n extractISOOffset,\n extractIANAZone\n);\nconst extractISOTimeOffsetAndIANAZone = combineExtractors(\n extractISOTime,\n extractISOOffset,\n extractIANAZone\n);\n\nexport function parseSQL(s) {\n return parse(\n s,\n [sqlYmdWithTimeExtensionRegex, extractISOYmdTimeOffsetAndIANAZone],\n [sqlTimeCombinedRegex, extractISOTimeOffsetAndIANAZone]\n );\n}\n","import { InvalidArgumentError, InvalidDurationError, InvalidUnitError } from \"./errors.js\";\nimport Formatter from \"./impl/formatter.js\";\nimport Invalid from \"./impl/invalid.js\";\nimport Locale from \"./impl/locale.js\";\nimport { parseISODuration, parseISOTimeOnly } from \"./impl/regexParser.js\";\nimport {\n asNumber,\n hasOwnProperty,\n isInteger,\n isNumber,\n isUndefined,\n normalizeObject,\n roundTo,\n} from \"./impl/util.js\";\nimport Settings from \"./settings.js\";\n\nconst INVALID = \"Invalid Duration\";\n\n// unit conversion constants\nexport const lowOrderMatrix = {\n weeks: {\n days: 7,\n hours: 7 * 24,\n minutes: 7 * 24 * 60,\n seconds: 7 * 24 * 60 * 60,\n milliseconds: 7 * 24 * 60 * 60 * 1000,\n },\n days: {\n hours: 24,\n minutes: 24 * 60,\n seconds: 24 * 60 * 60,\n milliseconds: 24 * 60 * 60 * 1000,\n },\n hours: { minutes: 60, seconds: 60 * 60, milliseconds: 60 * 60 * 1000 },\n minutes: { seconds: 60, milliseconds: 60 * 1000 },\n seconds: { milliseconds: 1000 },\n },\n casualMatrix = {\n years: {\n quarters: 4,\n months: 12,\n weeks: 52,\n days: 365,\n hours: 365 * 24,\n minutes: 365 * 24 * 60,\n seconds: 365 * 24 * 60 * 60,\n milliseconds: 365 * 24 * 60 * 60 * 1000,\n },\n quarters: {\n months: 3,\n weeks: 13,\n days: 91,\n hours: 91 * 24,\n minutes: 91 * 24 * 60,\n seconds: 91 * 24 * 60 * 60,\n milliseconds: 91 * 24 * 60 * 60 * 1000,\n },\n months: {\n weeks: 4,\n days: 30,\n hours: 30 * 24,\n minutes: 30 * 24 * 60,\n seconds: 30 * 24 * 60 * 60,\n milliseconds: 30 * 24 * 60 * 60 * 1000,\n },\n\n ...lowOrderMatrix,\n },\n daysInYearAccurate = 146097.0 / 400,\n daysInMonthAccurate = 146097.0 / 4800,\n accurateMatrix = {\n years: {\n quarters: 4,\n months: 12,\n weeks: daysInYearAccurate / 7,\n days: daysInYearAccurate,\n hours: daysInYearAccurate * 24,\n minutes: daysInYearAccurate * 24 * 60,\n seconds: daysInYearAccurate * 24 * 60 * 60,\n milliseconds: daysInYearAccurate * 24 * 60 * 60 * 1000,\n },\n quarters: {\n months: 3,\n weeks: daysInYearAccurate / 28,\n days: daysInYearAccurate / 4,\n hours: (daysInYearAccurate * 24) / 4,\n minutes: (daysInYearAccurate * 24 * 60) / 4,\n seconds: (daysInYearAccurate * 24 * 60 * 60) / 4,\n milliseconds: (daysInYearAccurate * 24 * 60 * 60 * 1000) / 4,\n },\n months: {\n weeks: daysInMonthAccurate / 7,\n days: daysInMonthAccurate,\n hours: daysInMonthAccurate * 24,\n minutes: daysInMonthAccurate * 24 * 60,\n seconds: daysInMonthAccurate * 24 * 60 * 60,\n milliseconds: daysInMonthAccurate * 24 * 60 * 60 * 1000,\n },\n ...lowOrderMatrix,\n };\n\n// units ordered by size\nconst orderedUnits = [\n \"years\",\n \"quarters\",\n \"months\",\n \"weeks\",\n \"days\",\n \"hours\",\n \"minutes\",\n \"seconds\",\n \"milliseconds\",\n];\n\nconst reverseUnits = orderedUnits.slice(0).reverse();\n\n// clone really means \"create another instance just like this one, but with these changes\"\nfunction clone(dur, alts, clear = false) {\n // deep merge for vals\n const conf = {\n values: clear ? alts.values : { ...dur.values, ...(alts.values || {}) },\n loc: dur.loc.clone(alts.loc),\n conversionAccuracy: alts.conversionAccuracy || dur.conversionAccuracy,\n };\n return new Duration(conf);\n}\n\nfunction antiTrunc(n) {\n return n < 0 ? Math.floor(n) : Math.ceil(n);\n}\n\n// NB: mutates parameters\nfunction convert(matrix, fromMap, fromUnit, toMap, toUnit) {\n const conv = matrix[toUnit][fromUnit],\n raw = fromMap[fromUnit] / conv,\n sameSign = Math.sign(raw) === Math.sign(toMap[toUnit]),\n // ok, so this is wild, but see the matrix in the tests\n added =\n !sameSign && toMap[toUnit] !== 0 && Math.abs(raw) <= 1 ? antiTrunc(raw) : Math.trunc(raw);\n toMap[toUnit] += added;\n fromMap[fromUnit] -= added * conv;\n}\n\n// NB: mutates parameters\nfunction normalizeValues(matrix, vals) {\n reverseUnits.reduce((previous, current) => {\n if (!isUndefined(vals[current])) {\n if (previous) {\n convert(matrix, vals, previous, vals, current);\n }\n return current;\n } else {\n return previous;\n }\n }, null);\n}\n\n/**\n * A Duration object represents a period of time, like \"2 months\" or \"1 day, 1 hour\". Conceptually, it's just a map of units to their quantities, accompanied by some additional configuration and methods for creating, parsing, interrogating, transforming, and formatting them. They can be used on their own or in conjunction with other Luxon types; for example, you can use {@link DateTime#plus} to add a Duration object to a DateTime, producing another DateTime.\n *\n * Here is a brief overview of commonly used methods and getters in Duration:\n *\n * * **Creation** To create a Duration, use {@link Duration#fromMillis}, {@link Duration#fromObject}, or {@link Duration#fromISO}.\n * * **Unit values** See the {@link Duration#years}, {@link Duration.months}, {@link Duration#weeks}, {@link Duration#days}, {@link Duration#hours}, {@link Duration#minutes}, {@link Duration#seconds}, {@link Duration#milliseconds} accessors.\n * * **Configuration** See {@link Duration#locale} and {@link Duration#numberingSystem} accessors.\n * * **Transformation** To create new Durations out of old ones use {@link Duration#plus}, {@link Duration#minus}, {@link Duration#normalize}, {@link Duration#set}, {@link Duration#reconfigure}, {@link Duration#shiftTo}, and {@link Duration#negate}.\n * * **Output** To convert the Duration into other representations, see {@link Duration#as}, {@link Duration#toISO}, {@link Duration#toFormat}, and {@link Duration#toJSON}\n *\n * There's are more methods documented below. In addition, for more information on subtler topics like internationalization and validity, see the external documentation.\n */\nexport default class Duration {\n /**\n * @private\n */\n constructor(config) {\n const accurate = config.conversionAccuracy === \"longterm\" || false;\n /**\n * @access private\n */\n this.values = config.values;\n /**\n * @access private\n */\n this.loc = config.loc || Locale.create();\n /**\n * @access private\n */\n this.conversionAccuracy = accurate ? \"longterm\" : \"casual\";\n /**\n * @access private\n */\n this.invalid = config.invalid || null;\n /**\n * @access private\n */\n this.matrix = accurate ? accurateMatrix : casualMatrix;\n /**\n * @access private\n */\n this.isLuxonDuration = true;\n }\n\n /**\n * Create Duration from a number of milliseconds.\n * @param {number} count of milliseconds\n * @param {Object} opts - options for parsing\n * @param {string} [opts.locale='en-US'] - the locale to use\n * @param {string} opts.numberingSystem - the numbering system to use\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @return {Duration}\n */\n static fromMillis(count, opts) {\n return Duration.fromObject({ milliseconds: count }, opts);\n }\n\n /**\n * Create a Duration from a JavaScript object with keys like 'years' and 'hours'.\n * If this object is empty then a zero milliseconds duration is returned.\n * @param {Object} obj - the object to create the DateTime from\n * @param {number} obj.years\n * @param {number} obj.quarters\n * @param {number} obj.months\n * @param {number} obj.weeks\n * @param {number} obj.days\n * @param {number} obj.hours\n * @param {number} obj.minutes\n * @param {number} obj.seconds\n * @param {number} obj.milliseconds\n * @param {Object} [opts=[]] - options for creating this Duration\n * @param {string} [opts.locale='en-US'] - the locale to use\n * @param {string} opts.numberingSystem - the numbering system to use\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @return {Duration}\n */\n static fromObject(obj, opts = {}) {\n if (obj == null || typeof obj !== \"object\") {\n throw new InvalidArgumentError(\n `Duration.fromObject: argument expected to be an object, got ${\n obj === null ? \"null\" : typeof obj\n }`\n );\n }\n\n return new Duration({\n values: normalizeObject(obj, Duration.normalizeUnit),\n loc: Locale.fromObject(opts),\n conversionAccuracy: opts.conversionAccuracy,\n });\n }\n\n /**\n * Create a Duration from DurationLike.\n *\n * @param {Object | number | Duration} durationLike\n * One of:\n * - object with keys like 'years' and 'hours'.\n * - number representing milliseconds\n * - Duration instance\n * @return {Duration}\n */\n static fromDurationLike(durationLike) {\n if (isNumber(durationLike)) {\n return Duration.fromMillis(durationLike);\n } else if (Duration.isDuration(durationLike)) {\n return durationLike;\n } else if (typeof durationLike === \"object\") {\n return Duration.fromObject(durationLike);\n } else {\n throw new InvalidArgumentError(\n `Unknown duration argument ${durationLike} of type ${typeof durationLike}`\n );\n }\n }\n\n /**\n * Create a Duration from an ISO 8601 duration string.\n * @param {string} text - text to parse\n * @param {Object} opts - options for parsing\n * @param {string} [opts.locale='en-US'] - the locale to use\n * @param {string} opts.numberingSystem - the numbering system to use\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @see https://en.wikipedia.org/wiki/ISO_8601#Durations\n * @example Duration.fromISO('P3Y6M1W4DT12H30M5S').toObject() //=> { years: 3, months: 6, weeks: 1, days: 4, hours: 12, minutes: 30, seconds: 5 }\n * @example Duration.fromISO('PT23H').toObject() //=> { hours: 23 }\n * @example Duration.fromISO('P5Y3M').toObject() //=> { years: 5, months: 3 }\n * @return {Duration}\n */\n static fromISO(text, opts) {\n const [parsed] = parseISODuration(text);\n if (parsed) {\n return Duration.fromObject(parsed, opts);\n } else {\n return Duration.invalid(\"unparsable\", `the input \"${text}\" can't be parsed as ISO 8601`);\n }\n }\n\n /**\n * Create a Duration from an ISO 8601 time string.\n * @param {string} text - text to parse\n * @param {Object} opts - options for parsing\n * @param {string} [opts.locale='en-US'] - the locale to use\n * @param {string} opts.numberingSystem - the numbering system to use\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @see https://en.wikipedia.org/wiki/ISO_8601#Times\n * @example Duration.fromISOTime('11:22:33.444').toObject() //=> { hours: 11, minutes: 22, seconds: 33, milliseconds: 444 }\n * @example Duration.fromISOTime('11:00').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }\n * @example Duration.fromISOTime('T11:00').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }\n * @example Duration.fromISOTime('1100').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }\n * @example Duration.fromISOTime('T1100').toObject() //=> { hours: 11, minutes: 0, seconds: 0 }\n * @return {Duration}\n */\n static fromISOTime(text, opts) {\n const [parsed] = parseISOTimeOnly(text);\n if (parsed) {\n return Duration.fromObject(parsed, opts);\n } else {\n return Duration.invalid(\"unparsable\", `the input \"${text}\" can't be parsed as ISO 8601`);\n }\n }\n\n /**\n * Create an invalid Duration.\n * @param {string} reason - simple string of why this datetime is invalid. Should not contain parameters or anything else data-dependent\n * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information\n * @return {Duration}\n */\n static invalid(reason, explanation = null) {\n if (!reason) {\n throw new InvalidArgumentError(\"need to specify a reason the Duration is invalid\");\n }\n\n const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);\n\n if (Settings.throwOnInvalid) {\n throw new InvalidDurationError(invalid);\n } else {\n return new Duration({ invalid });\n }\n }\n\n /**\n * @private\n */\n static normalizeUnit(unit) {\n const normalized = {\n year: \"years\",\n years: \"years\",\n quarter: \"quarters\",\n quarters: \"quarters\",\n month: \"months\",\n months: \"months\",\n week: \"weeks\",\n weeks: \"weeks\",\n day: \"days\",\n days: \"days\",\n hour: \"hours\",\n hours: \"hours\",\n minute: \"minutes\",\n minutes: \"minutes\",\n second: \"seconds\",\n seconds: \"seconds\",\n millisecond: \"milliseconds\",\n milliseconds: \"milliseconds\",\n }[unit ? unit.toLowerCase() : unit];\n\n if (!normalized) throw new InvalidUnitError(unit);\n\n return normalized;\n }\n\n /**\n * Check if an object is a Duration. Works across context boundaries\n * @param {object} o\n * @return {boolean}\n */\n static isDuration(o) {\n return (o && o.isLuxonDuration) || false;\n }\n\n /**\n * Get the locale of a Duration, such 'en-GB'\n * @type {string}\n */\n get locale() {\n return this.isValid ? this.loc.locale : null;\n }\n\n /**\n * Get the numbering system of a Duration, such 'beng'. The numbering system is used when formatting the Duration\n *\n * @type {string}\n */\n get numberingSystem() {\n return this.isValid ? this.loc.numberingSystem : null;\n }\n\n /**\n * Returns a string representation of this Duration formatted according to the specified format string. You may use these tokens:\n * * `S` for milliseconds\n * * `s` for seconds\n * * `m` for minutes\n * * `h` for hours\n * * `d` for days\n * * `M` for months\n * * `y` for years\n * Notes:\n * * Add padding by repeating the token, e.g. \"yy\" pads the years to two digits, \"hhhh\" pads the hours out to four digits\n * * The duration will be converted to the set of units in the format string using {@link Duration#shiftTo} and the Durations's conversion accuracy setting.\n * @param {string} fmt - the format string\n * @param {Object} opts - options\n * @param {boolean} [opts.floor=true] - floor numerical values\n * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat(\"y d s\") //=> \"1 6 2\"\n * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat(\"yy dd sss\") //=> \"01 06 002\"\n * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toFormat(\"M S\") //=> \"12 518402000\"\n * @return {string}\n */\n toFormat(fmt, opts = {}) {\n // reverse-compat since 1.2; we always round down now, never up, and we do it by default\n const fmtOpts = {\n ...opts,\n floor: opts.round !== false && opts.floor !== false,\n };\n return this.isValid\n ? Formatter.create(this.loc, fmtOpts).formatDurationFromString(this, fmt)\n : INVALID;\n }\n\n /**\n * Returns a string representation of a Duration with all units included\n * To modify its behavior use the `listStyle` and any Intl.NumberFormat option, though `unitDisplay` is especially relevant. See {@link Intl.NumberFormat}.\n * @param opts - On option object to override the formatting. Accepts the same keys as the options parameter of the native `Int.NumberFormat` constructor, as well as `listStyle`.\n * @example\n * ```js\n * var dur = Duration.fromObject({ days: 1, hours: 5, minutes: 6 })\n * dur.toHuman() //=> '1 day, 5 hours, 6 minutes'\n * dur.toHuman({ listStyle: \"long\" }) //=> '1 day, 5 hours, and 6 minutes'\n * dur.toHuman({ unitDisplay: \"short\" }) //=> '1 day, 5 hr, 6 min'\n * ```\n */\n toHuman(opts = {}) {\n const l = orderedUnits\n .map((unit) => {\n const val = this.values[unit];\n if (isUndefined(val)) {\n return null;\n }\n return this.loc\n .numberFormatter({ style: \"unit\", unitDisplay: \"long\", ...opts, unit: unit.slice(0, -1) })\n .format(val);\n })\n .filter((n) => n);\n\n return this.loc\n .listFormatter({ type: \"conjunction\", style: opts.listStyle || \"narrow\", ...opts })\n .format(l);\n }\n\n /**\n * Returns a JavaScript object with this Duration's values.\n * @example Duration.fromObject({ years: 1, days: 6, seconds: 2 }).toObject() //=> { years: 1, days: 6, seconds: 2 }\n * @return {Object}\n */\n toObject() {\n if (!this.isValid) return {};\n return { ...this.values };\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this Duration.\n * @see https://en.wikipedia.org/wiki/ISO_8601#Durations\n * @example Duration.fromObject({ years: 3, seconds: 45 }).toISO() //=> 'P3YT45S'\n * @example Duration.fromObject({ months: 4, seconds: 45 }).toISO() //=> 'P4MT45S'\n * @example Duration.fromObject({ months: 5 }).toISO() //=> 'P5M'\n * @example Duration.fromObject({ minutes: 5 }).toISO() //=> 'PT5M'\n * @example Duration.fromObject({ milliseconds: 6 }).toISO() //=> 'PT0.006S'\n * @return {string}\n */\n toISO() {\n // we could use the formatter, but this is an easier way to get the minimum string\n if (!this.isValid) return null;\n\n let s = \"P\";\n if (this.years !== 0) s += this.years + \"Y\";\n if (this.months !== 0 || this.quarters !== 0) s += this.months + this.quarters * 3 + \"M\";\n if (this.weeks !== 0) s += this.weeks + \"W\";\n if (this.days !== 0) s += this.days + \"D\";\n if (this.hours !== 0 || this.minutes !== 0 || this.seconds !== 0 || this.milliseconds !== 0)\n s += \"T\";\n if (this.hours !== 0) s += this.hours + \"H\";\n if (this.minutes !== 0) s += this.minutes + \"M\";\n if (this.seconds !== 0 || this.milliseconds !== 0)\n // this will handle \"floating point madness\" by removing extra decimal places\n // https://stackoverflow.com/questions/588004/is-floating-point-math-broken\n s += roundTo(this.seconds + this.milliseconds / 1000, 3) + \"S\";\n if (s === \"P\") s += \"T0S\";\n return s;\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this Duration, formatted as a time of day.\n * Note that this will return null if the duration is invalid, negative, or equal to or greater than 24 hours.\n * @see https://en.wikipedia.org/wiki/ISO_8601#Times\n * @param {Object} opts - options\n * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0\n * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0\n * @param {boolean} [opts.includePrefix=false] - include the `T` prefix\n * @param {string} [opts.format='extended'] - choose between the basic and extended format\n * @example Duration.fromObject({ hours: 11 }).toISOTime() //=> '11:00:00.000'\n * @example Duration.fromObject({ hours: 11 }).toISOTime({ suppressMilliseconds: true }) //=> '11:00:00'\n * @example Duration.fromObject({ hours: 11 }).toISOTime({ suppressSeconds: true }) //=> '11:00'\n * @example Duration.fromObject({ hours: 11 }).toISOTime({ includePrefix: true }) //=> 'T11:00:00.000'\n * @example Duration.fromObject({ hours: 11 }).toISOTime({ format: 'basic' }) //=> '110000.000'\n * @return {string}\n */\n toISOTime(opts = {}) {\n if (!this.isValid) return null;\n\n const millis = this.toMillis();\n if (millis < 0 || millis >= 86400000) return null;\n\n opts = {\n suppressMilliseconds: false,\n suppressSeconds: false,\n includePrefix: false,\n format: \"extended\",\n ...opts,\n };\n\n const value = this.shiftTo(\"hours\", \"minutes\", \"seconds\", \"milliseconds\");\n\n let fmt = opts.format === \"basic\" ? \"hhmm\" : \"hh:mm\";\n\n if (!opts.suppressSeconds || value.seconds !== 0 || value.milliseconds !== 0) {\n fmt += opts.format === \"basic\" ? \"ss\" : \":ss\";\n if (!opts.suppressMilliseconds || value.milliseconds !== 0) {\n fmt += \".SSS\";\n }\n }\n\n let str = value.toFormat(fmt);\n\n if (opts.includePrefix) {\n str = \"T\" + str;\n }\n\n return str;\n }\n\n /**\n * Returns an ISO 8601 representation of this Duration appropriate for use in JSON.\n * @return {string}\n */\n toJSON() {\n return this.toISO();\n }\n\n /**\n * Returns an ISO 8601 representation of this Duration appropriate for use in debugging.\n * @return {string}\n */\n toString() {\n return this.toISO();\n }\n\n /**\n * Returns an milliseconds value of this Duration.\n * @return {number}\n */\n toMillis() {\n return this.as(\"milliseconds\");\n }\n\n /**\n * Returns an milliseconds value of this Duration. Alias of {@link toMillis}\n * @return {number}\n */\n valueOf() {\n return this.toMillis();\n }\n\n /**\n * Make this Duration longer by the specified amount. Return a newly-constructed Duration.\n * @param {Duration|Object|number} duration - The amount to add. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()\n * @return {Duration}\n */\n plus(duration) {\n if (!this.isValid) return this;\n\n const dur = Duration.fromDurationLike(duration),\n result = {};\n\n for (const k of orderedUnits) {\n if (hasOwnProperty(dur.values, k) || hasOwnProperty(this.values, k)) {\n result[k] = dur.get(k) + this.get(k);\n }\n }\n\n return clone(this, { values: result }, true);\n }\n\n /**\n * Make this Duration shorter by the specified amount. Return a newly-constructed Duration.\n * @param {Duration|Object|number} duration - The amount to subtract. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()\n * @return {Duration}\n */\n minus(duration) {\n if (!this.isValid) return this;\n\n const dur = Duration.fromDurationLike(duration);\n return this.plus(dur.negate());\n }\n\n /**\n * Scale this Duration by the specified amount. Return a newly-constructed Duration.\n * @param {function} fn - The function to apply to each unit. Arity is 1 or 2: the value of the unit and, optionally, the unit name. Must return a number.\n * @example Duration.fromObject({ hours: 1, minutes: 30 }).mapUnits(x => x * 2) //=> { hours: 2, minutes: 60 }\n * @example Duration.fromObject({ hours: 1, minutes: 30 }).mapUnits((x, u) => u === \"hour\" ? x * 2 : x) //=> { hours: 2, minutes: 30 }\n * @return {Duration}\n */\n mapUnits(fn) {\n if (!this.isValid) return this;\n const result = {};\n for (const k of Object.keys(this.values)) {\n result[k] = asNumber(fn(this.values[k], k));\n }\n return clone(this, { values: result }, true);\n }\n\n /**\n * Get the value of unit.\n * @param {string} unit - a unit such as 'minute' or 'day'\n * @example Duration.fromObject({years: 2, days: 3}).get('years') //=> 2\n * @example Duration.fromObject({years: 2, days: 3}).get('months') //=> 0\n * @example Duration.fromObject({years: 2, days: 3}).get('days') //=> 3\n * @return {number}\n */\n get(unit) {\n return this[Duration.normalizeUnit(unit)];\n }\n\n /**\n * \"Set\" the values of specified units. Return a newly-constructed Duration.\n * @param {Object} values - a mapping of units to numbers\n * @example dur.set({ years: 2017 })\n * @example dur.set({ hours: 8, minutes: 30 })\n * @return {Duration}\n */\n set(values) {\n if (!this.isValid) return this;\n\n const mixed = { ...this.values, ...normalizeObject(values, Duration.normalizeUnit) };\n return clone(this, { values: mixed });\n }\n\n /**\n * \"Set\" the locale and/or numberingSystem. Returns a newly-constructed Duration.\n * @example dur.reconfigure({ locale: 'en-GB' })\n * @return {Duration}\n */\n reconfigure({ locale, numberingSystem, conversionAccuracy } = {}) {\n const loc = this.loc.clone({ locale, numberingSystem }),\n opts = { loc };\n\n if (conversionAccuracy) {\n opts.conversionAccuracy = conversionAccuracy;\n }\n\n return clone(this, opts);\n }\n\n /**\n * Return the length of the duration in the specified unit.\n * @param {string} unit - a unit such as 'minutes' or 'days'\n * @example Duration.fromObject({years: 1}).as('days') //=> 365\n * @example Duration.fromObject({years: 1}).as('months') //=> 12\n * @example Duration.fromObject({hours: 60}).as('days') //=> 2.5\n * @return {number}\n */\n as(unit) {\n return this.isValid ? this.shiftTo(unit).get(unit) : NaN;\n }\n\n /**\n * Reduce this Duration to its canonical representation in its current units.\n * @example Duration.fromObject({ years: 2, days: 5000 }).normalize().toObject() //=> { years: 15, days: 255 }\n * @example Duration.fromObject({ hours: 12, minutes: -45 }).normalize().toObject() //=> { hours: 11, minutes: 15 }\n * @return {Duration}\n */\n normalize() {\n if (!this.isValid) return this;\n const vals = this.toObject();\n normalizeValues(this.matrix, vals);\n return clone(this, { values: vals }, true);\n }\n\n /**\n * Convert this Duration into its representation in a different set of units.\n * @example Duration.fromObject({ hours: 1, seconds: 30 }).shiftTo('minutes', 'milliseconds').toObject() //=> { minutes: 60, milliseconds: 30000 }\n * @return {Duration}\n */\n shiftTo(...units) {\n if (!this.isValid) return this;\n\n if (units.length === 0) {\n return this;\n }\n\n units = units.map((u) => Duration.normalizeUnit(u));\n\n const built = {},\n accumulated = {},\n vals = this.toObject();\n let lastUnit;\n\n for (const k of orderedUnits) {\n if (units.indexOf(k) >= 0) {\n lastUnit = k;\n\n let own = 0;\n\n // anything we haven't boiled down yet should get boiled to this unit\n for (const ak in accumulated) {\n own += this.matrix[ak][k] * accumulated[ak];\n accumulated[ak] = 0;\n }\n\n // plus anything that's already in this unit\n if (isNumber(vals[k])) {\n own += vals[k];\n }\n\n const i = Math.trunc(own);\n built[k] = i;\n accumulated[k] = (own * 1000 - i * 1000) / 1000;\n\n // plus anything further down the chain that should be rolled up in to this\n for (const down in vals) {\n if (orderedUnits.indexOf(down) > orderedUnits.indexOf(k)) {\n convert(this.matrix, vals, down, built, k);\n }\n }\n // otherwise, keep it in the wings to boil it later\n } else if (isNumber(vals[k])) {\n accumulated[k] = vals[k];\n }\n }\n\n // anything leftover becomes the decimal for the last unit\n // lastUnit must be defined since units is not empty\n for (const key in accumulated) {\n if (accumulated[key] !== 0) {\n built[lastUnit] +=\n key === lastUnit ? accumulated[key] : accumulated[key] / this.matrix[lastUnit][key];\n }\n }\n\n return clone(this, { values: built }, true).normalize();\n }\n\n /**\n * Return the negative of this Duration.\n * @example Duration.fromObject({ hours: 1, seconds: 30 }).negate().toObject() //=> { hours: -1, seconds: -30 }\n * @return {Duration}\n */\n negate() {\n if (!this.isValid) return this;\n const negated = {};\n for (const k of Object.keys(this.values)) {\n negated[k] = this.values[k] === 0 ? 0 : -this.values[k];\n }\n return clone(this, { values: negated }, true);\n }\n\n /**\n * Get the years.\n * @type {number}\n */\n get years() {\n return this.isValid ? this.values.years || 0 : NaN;\n }\n\n /**\n * Get the quarters.\n * @type {number}\n */\n get quarters() {\n return this.isValid ? this.values.quarters || 0 : NaN;\n }\n\n /**\n * Get the months.\n * @type {number}\n */\n get months() {\n return this.isValid ? this.values.months || 0 : NaN;\n }\n\n /**\n * Get the weeks\n * @type {number}\n */\n get weeks() {\n return this.isValid ? this.values.weeks || 0 : NaN;\n }\n\n /**\n * Get the days.\n * @type {number}\n */\n get days() {\n return this.isValid ? this.values.days || 0 : NaN;\n }\n\n /**\n * Get the hours.\n * @type {number}\n */\n get hours() {\n return this.isValid ? this.values.hours || 0 : NaN;\n }\n\n /**\n * Get the minutes.\n * @type {number}\n */\n get minutes() {\n return this.isValid ? this.values.minutes || 0 : NaN;\n }\n\n /**\n * Get the seconds.\n * @return {number}\n */\n get seconds() {\n return this.isValid ? this.values.seconds || 0 : NaN;\n }\n\n /**\n * Get the milliseconds.\n * @return {number}\n */\n get milliseconds() {\n return this.isValid ? this.values.milliseconds || 0 : NaN;\n }\n\n /**\n * Returns whether the Duration is invalid. Invalid durations are returned by diff operations\n * on invalid DateTimes or Intervals.\n * @return {boolean}\n */\n get isValid() {\n return this.invalid === null;\n }\n\n /**\n * Returns an error code if this Duration became invalid, or null if the Duration is valid\n * @return {string}\n */\n get invalidReason() {\n return this.invalid ? this.invalid.reason : null;\n }\n\n /**\n * Returns an explanation of why this Duration became invalid, or null if the Duration is valid\n * @type {string}\n */\n get invalidExplanation() {\n return this.invalid ? this.invalid.explanation : null;\n }\n\n /**\n * Equality check\n * Two Durations are equal iff they have the same units and the same values for each unit.\n * @param {Duration} other\n * @return {boolean}\n */\n equals(other) {\n if (!this.isValid || !other.isValid) {\n return false;\n }\n\n if (!this.loc.equals(other.loc)) {\n return false;\n }\n\n function eq(v1, v2) {\n // Consider 0 and undefined as equal\n if (v1 === undefined || v1 === 0) return v2 === undefined || v2 === 0;\n return v1 === v2;\n }\n\n for (const u of orderedUnits) {\n if (!eq(this.values[u], other.values[u])) {\n return false;\n }\n }\n return true;\n }\n}\n","import DateTime, { friendlyDateTime } from \"./datetime.js\";\nimport Duration from \"./duration.js\";\nimport Settings from \"./settings.js\";\nimport { InvalidArgumentError, InvalidIntervalError } from \"./errors.js\";\nimport Invalid from \"./impl/invalid.js\";\n\nconst INVALID = \"Invalid Interval\";\n\n// checks if the start is equal to or before the end\nfunction validateStartEnd(start, end) {\n if (!start || !start.isValid) {\n return Interval.invalid(\"missing or invalid start\");\n } else if (!end || !end.isValid) {\n return Interval.invalid(\"missing or invalid end\");\n } else if (end < start) {\n return Interval.invalid(\n \"end before start\",\n `The end of an interval must be after its start, but you had start=${start.toISO()} and end=${end.toISO()}`\n );\n } else {\n return null;\n }\n}\n\n/**\n * An Interval object represents a half-open interval of time, where each endpoint is a {@link DateTime}. Conceptually, it's a container for those two endpoints, accompanied by methods for creating, parsing, interrogating, comparing, transforming, and formatting them.\n *\n * Here is a brief overview of the most commonly used methods and getters in Interval:\n *\n * * **Creation** To create an Interval, use {@link Interval#fromDateTimes}, {@link Interval#after}, {@link Interval#before}, or {@link Interval#fromISO}.\n * * **Accessors** Use {@link Interval#start} and {@link Interval#end} to get the start and end.\n * * **Interrogation** To analyze the Interval, use {@link Interval#count}, {@link Interval#length}, {@link Interval#hasSame}, {@link Interval#contains}, {@link Interval#isAfter}, or {@link Interval#isBefore}.\n * * **Transformation** To create other Intervals out of this one, use {@link Interval#set}, {@link Interval#splitAt}, {@link Interval#splitBy}, {@link Interval#divideEqually}, {@link Interval#merge}, {@link Interval#xor}, {@link Interval#union}, {@link Interval#intersection}, or {@link Interval#difference}.\n * * **Comparison** To compare this Interval to another one, use {@link Interval#equals}, {@link Interval#overlaps}, {@link Interval#abutsStart}, {@link Interval#abutsEnd}, {@link Interval#engulfs}\n * * **Output** To convert the Interval into other representations, see {@link Interval#toString}, {@link Interval#toISO}, {@link Interval#toISODate}, {@link Interval#toISOTime}, {@link Interval#toFormat}, and {@link Interval#toDuration}.\n */\nexport default class Interval {\n /**\n * @private\n */\n constructor(config) {\n /**\n * @access private\n */\n this.s = config.start;\n /**\n * @access private\n */\n this.e = config.end;\n /**\n * @access private\n */\n this.invalid = config.invalid || null;\n /**\n * @access private\n */\n this.isLuxonInterval = true;\n }\n\n /**\n * Create an invalid Interval.\n * @param {string} reason - simple string of why this Interval is invalid. Should not contain parameters or anything else data-dependent\n * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information\n * @return {Interval}\n */\n static invalid(reason, explanation = null) {\n if (!reason) {\n throw new InvalidArgumentError(\"need to specify a reason the Interval is invalid\");\n }\n\n const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);\n\n if (Settings.throwOnInvalid) {\n throw new InvalidIntervalError(invalid);\n } else {\n return new Interval({ invalid });\n }\n }\n\n /**\n * Create an Interval from a start DateTime and an end DateTime. Inclusive of the start but not the end.\n * @param {DateTime|Date|Object} start\n * @param {DateTime|Date|Object} end\n * @return {Interval}\n */\n static fromDateTimes(start, end) {\n const builtStart = friendlyDateTime(start),\n builtEnd = friendlyDateTime(end);\n\n const validateError = validateStartEnd(builtStart, builtEnd);\n\n if (validateError == null) {\n return new Interval({\n start: builtStart,\n end: builtEnd,\n });\n } else {\n return validateError;\n }\n }\n\n /**\n * Create an Interval from a start DateTime and a Duration to extend to.\n * @param {DateTime|Date|Object} start\n * @param {Duration|Object|number} duration - the length of the Interval.\n * @return {Interval}\n */\n static after(start, duration) {\n const dur = Duration.fromDurationLike(duration),\n dt = friendlyDateTime(start);\n return Interval.fromDateTimes(dt, dt.plus(dur));\n }\n\n /**\n * Create an Interval from an end DateTime and a Duration to extend backwards to.\n * @param {DateTime|Date|Object} end\n * @param {Duration|Object|number} duration - the length of the Interval.\n * @return {Interval}\n */\n static before(end, duration) {\n const dur = Duration.fromDurationLike(duration),\n dt = friendlyDateTime(end);\n return Interval.fromDateTimes(dt.minus(dur), dt);\n }\n\n /**\n * Create an Interval from an ISO 8601 string.\n * Accepts `/`, `/`, and `/` formats.\n * @param {string} text - the ISO string to parse\n * @param {Object} [opts] - options to pass {@link DateTime#fromISO} and optionally {@link Duration#fromISO}\n * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals\n * @return {Interval}\n */\n static fromISO(text, opts) {\n const [s, e] = (text || \"\").split(\"/\", 2);\n if (s && e) {\n let start, startIsValid;\n try {\n start = DateTime.fromISO(s, opts);\n startIsValid = start.isValid;\n } catch (e) {\n startIsValid = false;\n }\n\n let end, endIsValid;\n try {\n end = DateTime.fromISO(e, opts);\n endIsValid = end.isValid;\n } catch (e) {\n endIsValid = false;\n }\n\n if (startIsValid && endIsValid) {\n return Interval.fromDateTimes(start, end);\n }\n\n if (startIsValid) {\n const dur = Duration.fromISO(e, opts);\n if (dur.isValid) {\n return Interval.after(start, dur);\n }\n } else if (endIsValid) {\n const dur = Duration.fromISO(s, opts);\n if (dur.isValid) {\n return Interval.before(end, dur);\n }\n }\n }\n return Interval.invalid(\"unparsable\", `the input \"${text}\" can't be parsed as ISO 8601`);\n }\n\n /**\n * Check if an object is an Interval. Works across context boundaries\n * @param {object} o\n * @return {boolean}\n */\n static isInterval(o) {\n return (o && o.isLuxonInterval) || false;\n }\n\n /**\n * Returns the start of the Interval\n * @type {DateTime}\n */\n get start() {\n return this.isValid ? this.s : null;\n }\n\n /**\n * Returns the end of the Interval\n * @type {DateTime}\n */\n get end() {\n return this.isValid ? this.e : null;\n }\n\n /**\n * Returns whether this Interval's end is at least its start, meaning that the Interval isn't 'backwards'.\n * @type {boolean}\n */\n get isValid() {\n return this.invalidReason === null;\n }\n\n /**\n * Returns an error code if this Interval is invalid, or null if the Interval is valid\n * @type {string}\n */\n get invalidReason() {\n return this.invalid ? this.invalid.reason : null;\n }\n\n /**\n * Returns an explanation of why this Interval became invalid, or null if the Interval is valid\n * @type {string}\n */\n get invalidExplanation() {\n return this.invalid ? this.invalid.explanation : null;\n }\n\n /**\n * Returns the length of the Interval in the specified unit.\n * @param {string} unit - the unit (such as 'hours' or 'days') to return the length in.\n * @return {number}\n */\n length(unit = \"milliseconds\") {\n return this.isValid ? this.toDuration(...[unit]).get(unit) : NaN;\n }\n\n /**\n * Returns the count of minutes, hours, days, months, or years included in the Interval, even in part.\n * Unlike {@link Interval#length} this counts sections of the calendar, not periods of time, e.g. specifying 'day'\n * asks 'what dates are included in this interval?', not 'how many days long is this interval?'\n * @param {string} [unit='milliseconds'] - the unit of time to count.\n * @return {number}\n */\n count(unit = \"milliseconds\") {\n if (!this.isValid) return NaN;\n const start = this.start.startOf(unit),\n end = this.end.startOf(unit);\n return Math.floor(end.diff(start, unit).get(unit)) + 1;\n }\n\n /**\n * Returns whether this Interval's start and end are both in the same unit of time\n * @param {string} unit - the unit of time to check sameness on\n * @return {boolean}\n */\n hasSame(unit) {\n return this.isValid ? this.isEmpty() || this.e.minus(1).hasSame(this.s, unit) : false;\n }\n\n /**\n * Return whether this Interval has the same start and end DateTimes.\n * @return {boolean}\n */\n isEmpty() {\n return this.s.valueOf() === this.e.valueOf();\n }\n\n /**\n * Return whether this Interval's start is after the specified DateTime.\n * @param {DateTime} dateTime\n * @return {boolean}\n */\n isAfter(dateTime) {\n if (!this.isValid) return false;\n return this.s > dateTime;\n }\n\n /**\n * Return whether this Interval's end is before the specified DateTime.\n * @param {DateTime} dateTime\n * @return {boolean}\n */\n isBefore(dateTime) {\n if (!this.isValid) return false;\n return this.e <= dateTime;\n }\n\n /**\n * Return whether this Interval contains the specified DateTime.\n * @param {DateTime} dateTime\n * @return {boolean}\n */\n contains(dateTime) {\n if (!this.isValid) return false;\n return this.s <= dateTime && this.e > dateTime;\n }\n\n /**\n * \"Sets\" the start and/or end dates. Returns a newly-constructed Interval.\n * @param {Object} values - the values to set\n * @param {DateTime} values.start - the starting DateTime\n * @param {DateTime} values.end - the ending DateTime\n * @return {Interval}\n */\n set({ start, end } = {}) {\n if (!this.isValid) return this;\n return Interval.fromDateTimes(start || this.s, end || this.e);\n }\n\n /**\n * Split this Interval at each of the specified DateTimes\n * @param {...DateTime} dateTimes - the unit of time to count.\n * @return {Array}\n */\n splitAt(...dateTimes) {\n if (!this.isValid) return [];\n const sorted = dateTimes\n .map(friendlyDateTime)\n .filter((d) => this.contains(d))\n .sort(),\n results = [];\n let { s } = this,\n i = 0;\n\n while (s < this.e) {\n const added = sorted[i] || this.e,\n next = +added > +this.e ? this.e : added;\n results.push(Interval.fromDateTimes(s, next));\n s = next;\n i += 1;\n }\n\n return results;\n }\n\n /**\n * Split this Interval into smaller Intervals, each of the specified length.\n * Left over time is grouped into a smaller interval\n * @param {Duration|Object|number} duration - The length of each resulting interval.\n * @return {Array}\n */\n splitBy(duration) {\n const dur = Duration.fromDurationLike(duration);\n\n if (!this.isValid || !dur.isValid || dur.as(\"milliseconds\") === 0) {\n return [];\n }\n\n let { s } = this,\n idx = 1,\n next;\n\n const results = [];\n while (s < this.e) {\n const added = this.start.plus(dur.mapUnits((x) => x * idx));\n next = +added > +this.e ? this.e : added;\n results.push(Interval.fromDateTimes(s, next));\n s = next;\n idx += 1;\n }\n\n return results;\n }\n\n /**\n * Split this Interval into the specified number of smaller intervals.\n * @param {number} numberOfParts - The number of Intervals to divide the Interval into.\n * @return {Array}\n */\n divideEqually(numberOfParts) {\n if (!this.isValid) return [];\n return this.splitBy(this.length() / numberOfParts).slice(0, numberOfParts);\n }\n\n /**\n * Return whether this Interval overlaps with the specified Interval\n * @param {Interval} other\n * @return {boolean}\n */\n overlaps(other) {\n return this.e > other.s && this.s < other.e;\n }\n\n /**\n * Return whether this Interval's end is adjacent to the specified Interval's start.\n * @param {Interval} other\n * @return {boolean}\n */\n abutsStart(other) {\n if (!this.isValid) return false;\n return +this.e === +other.s;\n }\n\n /**\n * Return whether this Interval's start is adjacent to the specified Interval's end.\n * @param {Interval} other\n * @return {boolean}\n */\n abutsEnd(other) {\n if (!this.isValid) return false;\n return +other.e === +this.s;\n }\n\n /**\n * Return whether this Interval engulfs the start and end of the specified Interval.\n * @param {Interval} other\n * @return {boolean}\n */\n engulfs(other) {\n if (!this.isValid) return false;\n return this.s <= other.s && this.e >= other.e;\n }\n\n /**\n * Return whether this Interval has the same start and end as the specified Interval.\n * @param {Interval} other\n * @return {boolean}\n */\n equals(other) {\n if (!this.isValid || !other.isValid) {\n return false;\n }\n\n return this.s.equals(other.s) && this.e.equals(other.e);\n }\n\n /**\n * Return an Interval representing the intersection of this Interval and the specified Interval.\n * Specifically, the resulting Interval has the maximum start time and the minimum end time of the two Intervals.\n * Returns null if the intersection is empty, meaning, the intervals don't intersect.\n * @param {Interval} other\n * @return {Interval}\n */\n intersection(other) {\n if (!this.isValid) return this;\n const s = this.s > other.s ? this.s : other.s,\n e = this.e < other.e ? this.e : other.e;\n\n if (s >= e) {\n return null;\n } else {\n return Interval.fromDateTimes(s, e);\n }\n }\n\n /**\n * Return an Interval representing the union of this Interval and the specified Interval.\n * Specifically, the resulting Interval has the minimum start time and the maximum end time of the two Intervals.\n * @param {Interval} other\n * @return {Interval}\n */\n union(other) {\n if (!this.isValid) return this;\n const s = this.s < other.s ? this.s : other.s,\n e = this.e > other.e ? this.e : other.e;\n return Interval.fromDateTimes(s, e);\n }\n\n /**\n * Merge an array of Intervals into a equivalent minimal set of Intervals.\n * Combines overlapping and adjacent Intervals.\n * @param {Array} intervals\n * @return {Array}\n */\n static merge(intervals) {\n const [found, final] = intervals\n .sort((a, b) => a.s - b.s)\n .reduce(\n ([sofar, current], item) => {\n if (!current) {\n return [sofar, item];\n } else if (current.overlaps(item) || current.abutsStart(item)) {\n return [sofar, current.union(item)];\n } else {\n return [sofar.concat([current]), item];\n }\n },\n [[], null]\n );\n if (final) {\n found.push(final);\n }\n return found;\n }\n\n /**\n * Return an array of Intervals representing the spans of time that only appear in one of the specified Intervals.\n * @param {Array} intervals\n * @return {Array}\n */\n static xor(intervals) {\n let start = null,\n currentCount = 0;\n const results = [],\n ends = intervals.map((i) => [\n { time: i.s, type: \"s\" },\n { time: i.e, type: \"e\" },\n ]),\n flattened = Array.prototype.concat(...ends),\n arr = flattened.sort((a, b) => a.time - b.time);\n\n for (const i of arr) {\n currentCount += i.type === \"s\" ? 1 : -1;\n\n if (currentCount === 1) {\n start = i.time;\n } else {\n if (start && +start !== +i.time) {\n results.push(Interval.fromDateTimes(start, i.time));\n }\n\n start = null;\n }\n }\n\n return Interval.merge(results);\n }\n\n /**\n * Return an Interval representing the span of time in this Interval that doesn't overlap with any of the specified Intervals.\n * @param {...Interval} intervals\n * @return {Array}\n */\n difference(...intervals) {\n return Interval.xor([this].concat(intervals))\n .map((i) => this.intersection(i))\n .filter((i) => i && !i.isEmpty());\n }\n\n /**\n * Returns a string representation of this Interval appropriate for debugging.\n * @return {string}\n */\n toString() {\n if (!this.isValid) return INVALID;\n return `[${this.s.toISO()} – ${this.e.toISO()})`;\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this Interval.\n * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals\n * @param {Object} opts - The same options as {@link DateTime#toISO}\n * @return {string}\n */\n toISO(opts) {\n if (!this.isValid) return INVALID;\n return `${this.s.toISO(opts)}/${this.e.toISO(opts)}`;\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of date of this Interval.\n * The time components are ignored.\n * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals\n * @return {string}\n */\n toISODate() {\n if (!this.isValid) return INVALID;\n return `${this.s.toISODate()}/${this.e.toISODate()}`;\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of time of this Interval.\n * The date components are ignored.\n * @see https://en.wikipedia.org/wiki/ISO_8601#Time_intervals\n * @param {Object} opts - The same options as {@link DateTime#toISO}\n * @return {string}\n */\n toISOTime(opts) {\n if (!this.isValid) return INVALID;\n return `${this.s.toISOTime(opts)}/${this.e.toISOTime(opts)}`;\n }\n\n /**\n * Returns a string representation of this Interval formatted according to the specified format string.\n * @param {string} dateFormat - the format string. This string formats the start and end time. See {@link DateTime#toFormat} for details.\n * @param {Object} opts - options\n * @param {string} [opts.separator = ' – '] - a separator to place between the start and end representations\n * @return {string}\n */\n toFormat(dateFormat, { separator = \" – \" } = {}) {\n if (!this.isValid) return INVALID;\n return `${this.s.toFormat(dateFormat)}${separator}${this.e.toFormat(dateFormat)}`;\n }\n\n /**\n * Return a Duration representing the time spanned by this interval.\n * @param {string|string[]} [unit=['milliseconds']] - the unit or units (such as 'hours' or 'days') to include in the duration.\n * @param {Object} opts - options that affect the creation of the Duration\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @example Interval.fromDateTimes(dt1, dt2).toDuration().toObject() //=> { milliseconds: 88489257 }\n * @example Interval.fromDateTimes(dt1, dt2).toDuration('days').toObject() //=> { days: 1.0241812152777778 }\n * @example Interval.fromDateTimes(dt1, dt2).toDuration(['hours', 'minutes']).toObject() //=> { hours: 24, minutes: 34.82095 }\n * @example Interval.fromDateTimes(dt1, dt2).toDuration(['hours', 'minutes', 'seconds']).toObject() //=> { hours: 24, minutes: 34, seconds: 49.257 }\n * @example Interval.fromDateTimes(dt1, dt2).toDuration('seconds').toObject() //=> { seconds: 88489.257 }\n * @return {Duration}\n */\n toDuration(unit, opts) {\n if (!this.isValid) {\n return Duration.invalid(this.invalidReason);\n }\n return this.e.diff(this.s, unit, opts);\n }\n\n /**\n * Run mapFn on the interval start and end, returning a new Interval from the resulting DateTimes\n * @param {function} mapFn\n * @return {Interval}\n * @example Interval.fromDateTimes(dt1, dt2).mapEndpoints(endpoint => endpoint.toUTC())\n * @example Interval.fromDateTimes(dt1, dt2).mapEndpoints(endpoint => endpoint.plus({ hours: 2 }))\n */\n mapEndpoints(mapFn) {\n return Interval.fromDateTimes(mapFn(this.s), mapFn(this.e));\n }\n}\n","import DateTime from \"./datetime.js\";\nimport Settings from \"./settings.js\";\nimport Locale from \"./impl/locale.js\";\nimport IANAZone from \"./zones/IANAZone.js\";\nimport { normalizeZone } from \"./impl/zoneUtil.js\";\n\nimport { hasRelative } from \"./impl/util.js\";\n\n/**\n * The Info class contains static methods for retrieving general time and date related data. For example, it has methods for finding out if a time zone has a DST, for listing the months in any supported locale, and for discovering which of Luxon features are available in the current environment.\n */\nexport default class Info {\n /**\n * Return whether the specified zone contains a DST.\n * @param {string|Zone} [zone='local'] - Zone to check. Defaults to the environment's local zone.\n * @return {boolean}\n */\n static hasDST(zone = Settings.defaultZone) {\n const proto = DateTime.now().setZone(zone).set({ month: 12 });\n\n return !zone.isUniversal && proto.offset !== proto.set({ month: 6 }).offset;\n }\n\n /**\n * Return whether the specified zone is a valid IANA specifier.\n * @param {string} zone - Zone to check\n * @return {boolean}\n */\n static isValidIANAZone(zone) {\n return IANAZone.isValidZone(zone);\n }\n\n /**\n * Converts the input into a {@link Zone} instance.\n *\n * * If `input` is already a Zone instance, it is returned unchanged.\n * * If `input` is a string containing a valid time zone name, a Zone instance\n * with that name is returned.\n * * If `input` is a string that doesn't refer to a known time zone, a Zone\n * instance with {@link Zone#isValid} == false is returned.\n * * If `input is a number, a Zone instance with the specified fixed offset\n * in minutes is returned.\n * * If `input` is `null` or `undefined`, the default zone is returned.\n * @param {string|Zone|number} [input] - the value to be converted\n * @return {Zone}\n */\n static normalizeZone(input) {\n return normalizeZone(input, Settings.defaultZone);\n }\n\n /**\n * Return an array of standalone month names.\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat\n * @param {string} [length='long'] - the length of the month representation, such as \"numeric\", \"2-digit\", \"narrow\", \"short\", \"long\"\n * @param {Object} opts - options\n * @param {string} [opts.locale] - the locale code\n * @param {string} [opts.numberingSystem=null] - the numbering system\n * @param {string} [opts.locObj=null] - an existing locale object to use\n * @param {string} [opts.outputCalendar='gregory'] - the calendar\n * @example Info.months()[0] //=> 'January'\n * @example Info.months('short')[0] //=> 'Jan'\n * @example Info.months('numeric')[0] //=> '1'\n * @example Info.months('short', { locale: 'fr-CA' } )[0] //=> 'janv.'\n * @example Info.months('numeric', { locale: 'ar' })[0] //=> '١'\n * @example Info.months('long', { outputCalendar: 'islamic' })[0] //=> 'Rabiʻ I'\n * @return {Array}\n */\n static months(\n length = \"long\",\n { locale = null, numberingSystem = null, locObj = null, outputCalendar = \"gregory\" } = {}\n ) {\n return (locObj || Locale.create(locale, numberingSystem, outputCalendar)).months(length);\n }\n\n /**\n * Return an array of format month names.\n * Format months differ from standalone months in that they're meant to appear next to the day of the month. In some languages, that\n * changes the string.\n * See {@link Info#months}\n * @param {string} [length='long'] - the length of the month representation, such as \"numeric\", \"2-digit\", \"narrow\", \"short\", \"long\"\n * @param {Object} opts - options\n * @param {string} [opts.locale] - the locale code\n * @param {string} [opts.numberingSystem=null] - the numbering system\n * @param {string} [opts.locObj=null] - an existing locale object to use\n * @param {string} [opts.outputCalendar='gregory'] - the calendar\n * @return {Array}\n */\n static monthsFormat(\n length = \"long\",\n { locale = null, numberingSystem = null, locObj = null, outputCalendar = \"gregory\" } = {}\n ) {\n return (locObj || Locale.create(locale, numberingSystem, outputCalendar)).months(length, true);\n }\n\n /**\n * Return an array of standalone week names.\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat\n * @param {string} [length='long'] - the length of the weekday representation, such as \"narrow\", \"short\", \"long\".\n * @param {Object} opts - options\n * @param {string} [opts.locale] - the locale code\n * @param {string} [opts.numberingSystem=null] - the numbering system\n * @param {string} [opts.locObj=null] - an existing locale object to use\n * @example Info.weekdays()[0] //=> 'Monday'\n * @example Info.weekdays('short')[0] //=> 'Mon'\n * @example Info.weekdays('short', { locale: 'fr-CA' })[0] //=> 'lun.'\n * @example Info.weekdays('short', { locale: 'ar' })[0] //=> 'الاثنين'\n * @return {Array}\n */\n static weekdays(length = \"long\", { locale = null, numberingSystem = null, locObj = null } = {}) {\n return (locObj || Locale.create(locale, numberingSystem, null)).weekdays(length);\n }\n\n /**\n * Return an array of format week names.\n * Format weekdays differ from standalone weekdays in that they're meant to appear next to more date information. In some languages, that\n * changes the string.\n * See {@link Info#weekdays}\n * @param {string} [length='long'] - the length of the month representation, such as \"narrow\", \"short\", \"long\".\n * @param {Object} opts - options\n * @param {string} [opts.locale=null] - the locale code\n * @param {string} [opts.numberingSystem=null] - the numbering system\n * @param {string} [opts.locObj=null] - an existing locale object to use\n * @return {Array}\n */\n static weekdaysFormat(\n length = \"long\",\n { locale = null, numberingSystem = null, locObj = null } = {}\n ) {\n return (locObj || Locale.create(locale, numberingSystem, null)).weekdays(length, true);\n }\n\n /**\n * Return an array of meridiems.\n * @param {Object} opts - options\n * @param {string} [opts.locale] - the locale code\n * @example Info.meridiems() //=> [ 'AM', 'PM' ]\n * @example Info.meridiems({ locale: 'my' }) //=> [ 'နံနက်', 'ညနေ' ]\n * @return {Array}\n */\n static meridiems({ locale = null } = {}) {\n return Locale.create(locale).meridiems();\n }\n\n /**\n * Return an array of eras, such as ['BC', 'AD']. The locale can be specified, but the calendar system is always Gregorian.\n * @param {string} [length='short'] - the length of the era representation, such as \"short\" or \"long\".\n * @param {Object} opts - options\n * @param {string} [opts.locale] - the locale code\n * @example Info.eras() //=> [ 'BC', 'AD' ]\n * @example Info.eras('long') //=> [ 'Before Christ', 'Anno Domini' ]\n * @example Info.eras('long', { locale: 'fr' }) //=> [ 'avant Jésus-Christ', 'après Jésus-Christ' ]\n * @return {Array}\n */\n static eras(length = \"short\", { locale = null } = {}) {\n return Locale.create(locale, null, \"gregory\").eras(length);\n }\n\n /**\n * Return the set of available features in this environment.\n * Some features of Luxon are not available in all environments. For example, on older browsers, relative time formatting support is not available. Use this function to figure out if that's the case.\n * Keys:\n * * `relative`: whether this environment supports relative time formatting\n * @example Info.features() //=> { relative: false }\n * @return {Object}\n */\n static features() {\n return { relative: hasRelative() };\n }\n}\n","import Duration from \"../duration.js\";\n\nfunction dayDiff(earlier, later) {\n const utcDayStart = (dt) => dt.toUTC(0, { keepLocalTime: true }).startOf(\"day\").valueOf(),\n ms = utcDayStart(later) - utcDayStart(earlier);\n return Math.floor(Duration.fromMillis(ms).as(\"days\"));\n}\n\nfunction highOrderDiffs(cursor, later, units) {\n const differs = [\n [\"years\", (a, b) => b.year - a.year],\n [\"quarters\", (a, b) => b.quarter - a.quarter],\n [\"months\", (a, b) => b.month - a.month + (b.year - a.year) * 12],\n [\n \"weeks\",\n (a, b) => {\n const days = dayDiff(a, b);\n return (days - (days % 7)) / 7;\n },\n ],\n [\"days\", dayDiff],\n ];\n\n const results = {};\n let lowestOrder, highWater;\n\n for (const [unit, differ] of differs) {\n if (units.indexOf(unit) >= 0) {\n lowestOrder = unit;\n\n let delta = differ(cursor, later);\n highWater = cursor.plus({ [unit]: delta });\n\n if (highWater > later) {\n cursor = cursor.plus({ [unit]: delta - 1 });\n delta -= 1;\n } else {\n cursor = highWater;\n }\n\n results[unit] = delta;\n }\n }\n\n return [cursor, results, highWater, lowestOrder];\n}\n\nexport default function (earlier, later, units, opts) {\n let [cursor, results, highWater, lowestOrder] = highOrderDiffs(earlier, later, units);\n\n const remainingMillis = later - cursor;\n\n const lowerOrderUnits = units.filter(\n (u) => [\"hours\", \"minutes\", \"seconds\", \"milliseconds\"].indexOf(u) >= 0\n );\n\n if (lowerOrderUnits.length === 0) {\n if (highWater < later) {\n highWater = cursor.plus({ [lowestOrder]: 1 });\n }\n\n if (highWater !== cursor) {\n results[lowestOrder] = (results[lowestOrder] || 0) + remainingMillis / (highWater - cursor);\n }\n }\n\n const duration = Duration.fromObject(results, opts);\n\n if (lowerOrderUnits.length > 0) {\n return Duration.fromMillis(remainingMillis, opts)\n .shiftTo(...lowerOrderUnits)\n .plus(duration);\n } else {\n return duration;\n }\n}\n","const numberingSystems = {\n arab: \"[\\u0660-\\u0669]\",\n arabext: \"[\\u06F0-\\u06F9]\",\n bali: \"[\\u1B50-\\u1B59]\",\n beng: \"[\\u09E6-\\u09EF]\",\n deva: \"[\\u0966-\\u096F]\",\n fullwide: \"[\\uFF10-\\uFF19]\",\n gujr: \"[\\u0AE6-\\u0AEF]\",\n hanidec: \"[〇|一|二|三|四|五|六|七|八|九]\",\n khmr: \"[\\u17E0-\\u17E9]\",\n knda: \"[\\u0CE6-\\u0CEF]\",\n laoo: \"[\\u0ED0-\\u0ED9]\",\n limb: \"[\\u1946-\\u194F]\",\n mlym: \"[\\u0D66-\\u0D6F]\",\n mong: \"[\\u1810-\\u1819]\",\n mymr: \"[\\u1040-\\u1049]\",\n orya: \"[\\u0B66-\\u0B6F]\",\n tamldec: \"[\\u0BE6-\\u0BEF]\",\n telu: \"[\\u0C66-\\u0C6F]\",\n thai: \"[\\u0E50-\\u0E59]\",\n tibt: \"[\\u0F20-\\u0F29]\",\n latn: \"\\\\d\",\n};\n\nconst numberingSystemsUTF16 = {\n arab: [1632, 1641],\n arabext: [1776, 1785],\n bali: [6992, 7001],\n beng: [2534, 2543],\n deva: [2406, 2415],\n fullwide: [65296, 65303],\n gujr: [2790, 2799],\n khmr: [6112, 6121],\n knda: [3302, 3311],\n laoo: [3792, 3801],\n limb: [6470, 6479],\n mlym: [3430, 3439],\n mong: [6160, 6169],\n mymr: [4160, 4169],\n orya: [2918, 2927],\n tamldec: [3046, 3055],\n telu: [3174, 3183],\n thai: [3664, 3673],\n tibt: [3872, 3881],\n};\n\nconst hanidecChars = numberingSystems.hanidec.replace(/[\\[|\\]]/g, \"\").split(\"\");\n\nexport function parseDigits(str) {\n let value = parseInt(str, 10);\n if (isNaN(value)) {\n value = \"\";\n for (let i = 0; i < str.length; i++) {\n const code = str.charCodeAt(i);\n\n if (str[i].search(numberingSystems.hanidec) !== -1) {\n value += hanidecChars.indexOf(str[i]);\n } else {\n for (const key in numberingSystemsUTF16) {\n const [min, max] = numberingSystemsUTF16[key];\n if (code >= min && code <= max) {\n value += code - min;\n }\n }\n }\n }\n return parseInt(value, 10);\n } else {\n return value;\n }\n}\n\nexport function digitRegex({ numberingSystem }, append = \"\") {\n return new RegExp(`${numberingSystems[numberingSystem || \"latn\"]}${append}`);\n}\n","import { parseMillis, isUndefined, untruncateYear, signedOffset, hasOwnProperty } from \"./util.js\";\nimport Formatter from \"./formatter.js\";\nimport FixedOffsetZone from \"../zones/fixedOffsetZone.js\";\nimport IANAZone from \"../zones/IANAZone.js\";\nimport DateTime from \"../datetime.js\";\nimport { digitRegex, parseDigits } from \"./digits.js\";\nimport { ConflictingSpecificationError } from \"../errors.js\";\n\nconst MISSING_FTP = \"missing Intl.DateTimeFormat.formatToParts support\";\n\nfunction intUnit(regex, post = (i) => i) {\n return { regex, deser: ([s]) => post(parseDigits(s)) };\n}\n\nconst NBSP = String.fromCharCode(160);\nconst spaceOrNBSP = `( |${NBSP})`;\nconst spaceOrNBSPRegExp = new RegExp(spaceOrNBSP, \"g\");\n\nfunction fixListRegex(s) {\n // make dots optional and also make them literal\n // make space and non breakable space characters interchangeable\n return s.replace(/\\./g, \"\\\\.?\").replace(spaceOrNBSPRegExp, spaceOrNBSP);\n}\n\nfunction stripInsensitivities(s) {\n return s\n .replace(/\\./g, \"\") // ignore dots that were made optional\n .replace(spaceOrNBSPRegExp, \" \") // interchange space and nbsp\n .toLowerCase();\n}\n\nfunction oneOf(strings, startIndex) {\n if (strings === null) {\n return null;\n } else {\n return {\n regex: RegExp(strings.map(fixListRegex).join(\"|\")),\n deser: ([s]) =>\n strings.findIndex((i) => stripInsensitivities(s) === stripInsensitivities(i)) + startIndex,\n };\n }\n}\n\nfunction offset(regex, groups) {\n return { regex, deser: ([, h, m]) => signedOffset(h, m), groups };\n}\n\nfunction simple(regex) {\n return { regex, deser: ([s]) => s };\n}\n\nfunction escapeToken(value) {\n return value.replace(/[\\-\\[\\]{}()*+?.,\\\\\\^$|#\\s]/g, \"\\\\$&\");\n}\n\nfunction unitForToken(token, loc) {\n const one = digitRegex(loc),\n two = digitRegex(loc, \"{2}\"),\n three = digitRegex(loc, \"{3}\"),\n four = digitRegex(loc, \"{4}\"),\n six = digitRegex(loc, \"{6}\"),\n oneOrTwo = digitRegex(loc, \"{1,2}\"),\n oneToThree = digitRegex(loc, \"{1,3}\"),\n oneToSix = digitRegex(loc, \"{1,6}\"),\n oneToNine = digitRegex(loc, \"{1,9}\"),\n twoToFour = digitRegex(loc, \"{2,4}\"),\n fourToSix = digitRegex(loc, \"{4,6}\"),\n literal = (t) => ({ regex: RegExp(escapeToken(t.val)), deser: ([s]) => s, literal: true }),\n unitate = (t) => {\n if (token.literal) {\n return literal(t);\n }\n switch (t.val) {\n // era\n case \"G\":\n return oneOf(loc.eras(\"short\", false), 0);\n case \"GG\":\n return oneOf(loc.eras(\"long\", false), 0);\n // years\n case \"y\":\n return intUnit(oneToSix);\n case \"yy\":\n return intUnit(twoToFour, untruncateYear);\n case \"yyyy\":\n return intUnit(four);\n case \"yyyyy\":\n return intUnit(fourToSix);\n case \"yyyyyy\":\n return intUnit(six);\n // months\n case \"M\":\n return intUnit(oneOrTwo);\n case \"MM\":\n return intUnit(two);\n case \"MMM\":\n return oneOf(loc.months(\"short\", true, false), 1);\n case \"MMMM\":\n return oneOf(loc.months(\"long\", true, false), 1);\n case \"L\":\n return intUnit(oneOrTwo);\n case \"LL\":\n return intUnit(two);\n case \"LLL\":\n return oneOf(loc.months(\"short\", false, false), 1);\n case \"LLLL\":\n return oneOf(loc.months(\"long\", false, false), 1);\n // dates\n case \"d\":\n return intUnit(oneOrTwo);\n case \"dd\":\n return intUnit(two);\n // ordinals\n case \"o\":\n return intUnit(oneToThree);\n case \"ooo\":\n return intUnit(three);\n // time\n case \"HH\":\n return intUnit(two);\n case \"H\":\n return intUnit(oneOrTwo);\n case \"hh\":\n return intUnit(two);\n case \"h\":\n return intUnit(oneOrTwo);\n case \"mm\":\n return intUnit(two);\n case \"m\":\n return intUnit(oneOrTwo);\n case \"q\":\n return intUnit(oneOrTwo);\n case \"qq\":\n return intUnit(two);\n case \"s\":\n return intUnit(oneOrTwo);\n case \"ss\":\n return intUnit(two);\n case \"S\":\n return intUnit(oneToThree);\n case \"SSS\":\n return intUnit(three);\n case \"u\":\n return simple(oneToNine);\n case \"uu\":\n return simple(oneOrTwo);\n case \"uuu\":\n return intUnit(one);\n // meridiem\n case \"a\":\n return oneOf(loc.meridiems(), 0);\n // weekYear (k)\n case \"kkkk\":\n return intUnit(four);\n case \"kk\":\n return intUnit(twoToFour, untruncateYear);\n // weekNumber (W)\n case \"W\":\n return intUnit(oneOrTwo);\n case \"WW\":\n return intUnit(two);\n // weekdays\n case \"E\":\n case \"c\":\n return intUnit(one);\n case \"EEE\":\n return oneOf(loc.weekdays(\"short\", false, false), 1);\n case \"EEEE\":\n return oneOf(loc.weekdays(\"long\", false, false), 1);\n case \"ccc\":\n return oneOf(loc.weekdays(\"short\", true, false), 1);\n case \"cccc\":\n return oneOf(loc.weekdays(\"long\", true, false), 1);\n // offset/zone\n case \"Z\":\n case \"ZZ\":\n return offset(new RegExp(`([+-]${oneOrTwo.source})(?::(${two.source}))?`), 2);\n case \"ZZZ\":\n return offset(new RegExp(`([+-]${oneOrTwo.source})(${two.source})?`), 2);\n // we don't support ZZZZ (PST) or ZZZZZ (Pacific Standard Time) in parsing\n // because we don't have any way to figure out what they are\n case \"z\":\n return simple(/[a-z_+-/]{1,256}?/i);\n default:\n return literal(t);\n }\n };\n\n const unit = unitate(token) || {\n invalidReason: MISSING_FTP,\n };\n\n unit.token = token;\n\n return unit;\n}\n\nconst partTypeStyleToTokenVal = {\n year: {\n \"2-digit\": \"yy\",\n numeric: \"yyyyy\",\n },\n month: {\n numeric: \"M\",\n \"2-digit\": \"MM\",\n short: \"MMM\",\n long: \"MMMM\",\n },\n day: {\n numeric: \"d\",\n \"2-digit\": \"dd\",\n },\n weekday: {\n short: \"EEE\",\n long: \"EEEE\",\n },\n dayperiod: \"a\",\n dayPeriod: \"a\",\n hour: {\n numeric: \"h\",\n \"2-digit\": \"hh\",\n },\n minute: {\n numeric: \"m\",\n \"2-digit\": \"mm\",\n },\n second: {\n numeric: \"s\",\n \"2-digit\": \"ss\",\n },\n};\n\nfunction tokenForPart(part, locale, formatOpts) {\n const { type, value } = part;\n\n if (type === \"literal\") {\n return {\n literal: true,\n val: value,\n };\n }\n\n const style = formatOpts[type];\n\n let val = partTypeStyleToTokenVal[type];\n if (typeof val === \"object\") {\n val = val[style];\n }\n\n if (val) {\n return {\n literal: false,\n val,\n };\n }\n\n return undefined;\n}\n\nfunction buildRegex(units) {\n const re = units.map((u) => u.regex).reduce((f, r) => `${f}(${r.source})`, \"\");\n return [`^${re}$`, units];\n}\n\nfunction match(input, regex, handlers) {\n const matches = input.match(regex);\n\n if (matches) {\n const all = {};\n let matchIndex = 1;\n for (const i in handlers) {\n if (hasOwnProperty(handlers, i)) {\n const h = handlers[i],\n groups = h.groups ? h.groups + 1 : 1;\n if (!h.literal && h.token) {\n all[h.token.val[0]] = h.deser(matches.slice(matchIndex, matchIndex + groups));\n }\n matchIndex += groups;\n }\n }\n return [matches, all];\n } else {\n return [matches, {}];\n }\n}\n\nfunction dateTimeFromMatches(matches) {\n const toField = (token) => {\n switch (token) {\n case \"S\":\n return \"millisecond\";\n case \"s\":\n return \"second\";\n case \"m\":\n return \"minute\";\n case \"h\":\n case \"H\":\n return \"hour\";\n case \"d\":\n return \"day\";\n case \"o\":\n return \"ordinal\";\n case \"L\":\n case \"M\":\n return \"month\";\n case \"y\":\n return \"year\";\n case \"E\":\n case \"c\":\n return \"weekday\";\n case \"W\":\n return \"weekNumber\";\n case \"k\":\n return \"weekYear\";\n case \"q\":\n return \"quarter\";\n default:\n return null;\n }\n };\n\n let zone = null;\n let specificOffset;\n if (!isUndefined(matches.z)) {\n zone = IANAZone.create(matches.z);\n }\n\n if (!isUndefined(matches.Z)) {\n if (!zone) {\n zone = new FixedOffsetZone(matches.Z);\n }\n specificOffset = matches.Z;\n }\n\n if (!isUndefined(matches.q)) {\n matches.M = (matches.q - 1) * 3 + 1;\n }\n\n if (!isUndefined(matches.h)) {\n if (matches.h < 12 && matches.a === 1) {\n matches.h += 12;\n } else if (matches.h === 12 && matches.a === 0) {\n matches.h = 0;\n }\n }\n\n if (matches.G === 0 && matches.y) {\n matches.y = -matches.y;\n }\n\n if (!isUndefined(matches.u)) {\n matches.S = parseMillis(matches.u);\n }\n\n const vals = Object.keys(matches).reduce((r, k) => {\n const f = toField(k);\n if (f) {\n r[f] = matches[k];\n }\n\n return r;\n }, {});\n\n return [vals, zone, specificOffset];\n}\n\nlet dummyDateTimeCache = null;\n\nfunction getDummyDateTime() {\n if (!dummyDateTimeCache) {\n dummyDateTimeCache = DateTime.fromMillis(1555555555555);\n }\n\n return dummyDateTimeCache;\n}\n\nfunction maybeExpandMacroToken(token, locale) {\n if (token.literal) {\n return token;\n }\n\n const formatOpts = Formatter.macroTokenToFormatOpts(token.val);\n\n if (!formatOpts) {\n return token;\n }\n\n const formatter = Formatter.create(locale, formatOpts);\n const parts = formatter.formatDateTimeParts(getDummyDateTime());\n\n const tokens = parts.map((p) => tokenForPart(p, locale, formatOpts));\n\n if (tokens.includes(undefined)) {\n return token;\n }\n\n return tokens;\n}\n\nfunction expandMacroTokens(tokens, locale) {\n return Array.prototype.concat(...tokens.map((t) => maybeExpandMacroToken(t, locale)));\n}\n\n/**\n * @private\n */\n\nexport function explainFromTokens(locale, input, format) {\n const tokens = expandMacroTokens(Formatter.parseFormat(format), locale),\n units = tokens.map((t) => unitForToken(t, locale)),\n disqualifyingUnit = units.find((t) => t.invalidReason);\n\n if (disqualifyingUnit) {\n return { input, tokens, invalidReason: disqualifyingUnit.invalidReason };\n } else {\n const [regexString, handlers] = buildRegex(units),\n regex = RegExp(regexString, \"i\"),\n [rawMatches, matches] = match(input, regex, handlers),\n [result, zone, specificOffset] = matches\n ? dateTimeFromMatches(matches)\n : [null, null, undefined];\n if (hasOwnProperty(matches, \"a\") && hasOwnProperty(matches, \"H\")) {\n throw new ConflictingSpecificationError(\n \"Can't include meridiem when specifying 24-hour format\"\n );\n }\n return { input, tokens, regex, rawMatches, matches, result, zone, specificOffset };\n }\n}\n\nexport function parseFromTokens(locale, input, format) {\n const { result, zone, specificOffset, invalidReason } = explainFromTokens(locale, input, format);\n return [result, zone, specificOffset, invalidReason];\n}\n","import {\n integerBetween,\n isLeapYear,\n timeObject,\n daysInYear,\n daysInMonth,\n weeksInWeekYear,\n isInteger,\n} from \"./util.js\";\nimport Invalid from \"./invalid.js\";\n\nconst nonLeapLadder = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334],\n leapLadder = [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335];\n\nfunction unitOutOfRange(unit, value) {\n return new Invalid(\n \"unit out of range\",\n `you specified ${value} (of type ${typeof value}) as a ${unit}, which is invalid`\n );\n}\n\nfunction dayOfWeek(year, month, day) {\n const js = new Date(Date.UTC(year, month - 1, day)).getUTCDay();\n return js === 0 ? 7 : js;\n}\n\nfunction computeOrdinal(year, month, day) {\n return day + (isLeapYear(year) ? leapLadder : nonLeapLadder)[month - 1];\n}\n\nfunction uncomputeOrdinal(year, ordinal) {\n const table = isLeapYear(year) ? leapLadder : nonLeapLadder,\n month0 = table.findIndex((i) => i < ordinal),\n day = ordinal - table[month0];\n return { month: month0 + 1, day };\n}\n\n/**\n * @private\n */\n\nexport function gregorianToWeek(gregObj) {\n const { year, month, day } = gregObj,\n ordinal = computeOrdinal(year, month, day),\n weekday = dayOfWeek(year, month, day);\n\n let weekNumber = Math.floor((ordinal - weekday + 10) / 7),\n weekYear;\n\n if (weekNumber < 1) {\n weekYear = year - 1;\n weekNumber = weeksInWeekYear(weekYear);\n } else if (weekNumber > weeksInWeekYear(year)) {\n weekYear = year + 1;\n weekNumber = 1;\n } else {\n weekYear = year;\n }\n\n return { weekYear, weekNumber, weekday, ...timeObject(gregObj) };\n}\n\nexport function weekToGregorian(weekData) {\n const { weekYear, weekNumber, weekday } = weekData,\n weekdayOfJan4 = dayOfWeek(weekYear, 1, 4),\n yearInDays = daysInYear(weekYear);\n\n let ordinal = weekNumber * 7 + weekday - weekdayOfJan4 - 3,\n year;\n\n if (ordinal < 1) {\n year = weekYear - 1;\n ordinal += daysInYear(year);\n } else if (ordinal > yearInDays) {\n year = weekYear + 1;\n ordinal -= daysInYear(weekYear);\n } else {\n year = weekYear;\n }\n\n const { month, day } = uncomputeOrdinal(year, ordinal);\n return { year, month, day, ...timeObject(weekData) };\n}\n\nexport function gregorianToOrdinal(gregData) {\n const { year, month, day } = gregData;\n const ordinal = computeOrdinal(year, month, day);\n return { year, ordinal, ...timeObject(gregData) };\n}\n\nexport function ordinalToGregorian(ordinalData) {\n const { year, ordinal } = ordinalData;\n const { month, day } = uncomputeOrdinal(year, ordinal);\n return { year, month, day, ...timeObject(ordinalData) };\n}\n\nexport function hasInvalidWeekData(obj) {\n const validYear = isInteger(obj.weekYear),\n validWeek = integerBetween(obj.weekNumber, 1, weeksInWeekYear(obj.weekYear)),\n validWeekday = integerBetween(obj.weekday, 1, 7);\n\n if (!validYear) {\n return unitOutOfRange(\"weekYear\", obj.weekYear);\n } else if (!validWeek) {\n return unitOutOfRange(\"week\", obj.week);\n } else if (!validWeekday) {\n return unitOutOfRange(\"weekday\", obj.weekday);\n } else return false;\n}\n\nexport function hasInvalidOrdinalData(obj) {\n const validYear = isInteger(obj.year),\n validOrdinal = integerBetween(obj.ordinal, 1, daysInYear(obj.year));\n\n if (!validYear) {\n return unitOutOfRange(\"year\", obj.year);\n } else if (!validOrdinal) {\n return unitOutOfRange(\"ordinal\", obj.ordinal);\n } else return false;\n}\n\nexport function hasInvalidGregorianData(obj) {\n const validYear = isInteger(obj.year),\n validMonth = integerBetween(obj.month, 1, 12),\n validDay = integerBetween(obj.day, 1, daysInMonth(obj.year, obj.month));\n\n if (!validYear) {\n return unitOutOfRange(\"year\", obj.year);\n } else if (!validMonth) {\n return unitOutOfRange(\"month\", obj.month);\n } else if (!validDay) {\n return unitOutOfRange(\"day\", obj.day);\n } else return false;\n}\n\nexport function hasInvalidTimeData(obj) {\n const { hour, minute, second, millisecond } = obj;\n const validHour =\n integerBetween(hour, 0, 23) ||\n (hour === 24 && minute === 0 && second === 0 && millisecond === 0),\n validMinute = integerBetween(minute, 0, 59),\n validSecond = integerBetween(second, 0, 59),\n validMillisecond = integerBetween(millisecond, 0, 999);\n\n if (!validHour) {\n return unitOutOfRange(\"hour\", hour);\n } else if (!validMinute) {\n return unitOutOfRange(\"minute\", minute);\n } else if (!validSecond) {\n return unitOutOfRange(\"second\", second);\n } else if (!validMillisecond) {\n return unitOutOfRange(\"millisecond\", millisecond);\n } else return false;\n}\n","import Duration from \"./duration.js\";\nimport Interval from \"./interval.js\";\nimport Settings from \"./settings.js\";\nimport Info from \"./info.js\";\nimport Formatter from \"./impl/formatter.js\";\nimport FixedOffsetZone from \"./zones/fixedOffsetZone.js\";\nimport Locale from \"./impl/locale.js\";\nimport {\n isUndefined,\n maybeArray,\n isDate,\n isNumber,\n bestBy,\n daysInMonth,\n daysInYear,\n isLeapYear,\n weeksInWeekYear,\n normalizeObject,\n roundTo,\n objToLocalTS,\n padStart,\n} from \"./impl/util.js\";\nimport { normalizeZone } from \"./impl/zoneUtil.js\";\nimport diff from \"./impl/diff.js\";\nimport { parseRFC2822Date, parseISODate, parseHTTPDate, parseSQL } from \"./impl/regexParser.js\";\nimport { parseFromTokens, explainFromTokens } from \"./impl/tokenParser.js\";\nimport {\n gregorianToWeek,\n weekToGregorian,\n gregorianToOrdinal,\n ordinalToGregorian,\n hasInvalidGregorianData,\n hasInvalidWeekData,\n hasInvalidOrdinalData,\n hasInvalidTimeData,\n} from \"./impl/conversions.js\";\nimport * as Formats from \"./impl/formats.js\";\nimport {\n InvalidArgumentError,\n ConflictingSpecificationError,\n InvalidUnitError,\n InvalidDateTimeError,\n} from \"./errors.js\";\nimport Invalid from \"./impl/invalid.js\";\n\nconst INVALID = \"Invalid DateTime\";\nconst MAX_DATE = 8.64e15;\n\nfunction unsupportedZone(zone) {\n return new Invalid(\"unsupported zone\", `the zone \"${zone.name}\" is not supported`);\n}\n\n// we cache week data on the DT object and this intermediates the cache\nfunction possiblyCachedWeekData(dt) {\n if (dt.weekData === null) {\n dt.weekData = gregorianToWeek(dt.c);\n }\n return dt.weekData;\n}\n\n// clone really means, \"make a new object with these modifications\". all \"setters\" really use this\n// to create a new object while only changing some of the properties\nfunction clone(inst, alts) {\n const current = {\n ts: inst.ts,\n zone: inst.zone,\n c: inst.c,\n o: inst.o,\n loc: inst.loc,\n invalid: inst.invalid,\n };\n return new DateTime({ ...current, ...alts, old: current });\n}\n\n// find the right offset a given local time. The o input is our guess, which determines which\n// offset we'll pick in ambiguous cases (e.g. there are two 3 AMs b/c Fallback DST)\nfunction fixOffset(localTS, o, tz) {\n // Our UTC time is just a guess because our offset is just a guess\n let utcGuess = localTS - o * 60 * 1000;\n\n // Test whether the zone matches the offset for this ts\n const o2 = tz.offset(utcGuess);\n\n // If so, offset didn't change and we're done\n if (o === o2) {\n return [utcGuess, o];\n }\n\n // If not, change the ts by the difference in the offset\n utcGuess -= (o2 - o) * 60 * 1000;\n\n // If that gives us the local time we want, we're done\n const o3 = tz.offset(utcGuess);\n if (o2 === o3) {\n return [utcGuess, o2];\n }\n\n // If it's different, we're in a hole time. The offset has changed, but the we don't adjust the time\n return [localTS - Math.min(o2, o3) * 60 * 1000, Math.max(o2, o3)];\n}\n\n// convert an epoch timestamp into a calendar object with the given offset\nfunction tsToObj(ts, offset) {\n ts += offset * 60 * 1000;\n\n const d = new Date(ts);\n\n return {\n year: d.getUTCFullYear(),\n month: d.getUTCMonth() + 1,\n day: d.getUTCDate(),\n hour: d.getUTCHours(),\n minute: d.getUTCMinutes(),\n second: d.getUTCSeconds(),\n millisecond: d.getUTCMilliseconds(),\n };\n}\n\n// convert a calendar object to a epoch timestamp\nfunction objToTS(obj, offset, zone) {\n return fixOffset(objToLocalTS(obj), offset, zone);\n}\n\n// create a new DT instance by adding a duration, adjusting for DSTs\nfunction adjustTime(inst, dur) {\n const oPre = inst.o,\n year = inst.c.year + Math.trunc(dur.years),\n month = inst.c.month + Math.trunc(dur.months) + Math.trunc(dur.quarters) * 3,\n c = {\n ...inst.c,\n year,\n month,\n day:\n Math.min(inst.c.day, daysInMonth(year, month)) +\n Math.trunc(dur.days) +\n Math.trunc(dur.weeks) * 7,\n },\n millisToAdd = Duration.fromObject({\n years: dur.years - Math.trunc(dur.years),\n quarters: dur.quarters - Math.trunc(dur.quarters),\n months: dur.months - Math.trunc(dur.months),\n weeks: dur.weeks - Math.trunc(dur.weeks),\n days: dur.days - Math.trunc(dur.days),\n hours: dur.hours,\n minutes: dur.minutes,\n seconds: dur.seconds,\n milliseconds: dur.milliseconds,\n }).as(\"milliseconds\"),\n localTS = objToLocalTS(c);\n\n let [ts, o] = fixOffset(localTS, oPre, inst.zone);\n\n if (millisToAdd !== 0) {\n ts += millisToAdd;\n // that could have changed the offset by going over a DST, but we want to keep the ts the same\n o = inst.zone.offset(ts);\n }\n\n return { ts, o };\n}\n\n// helper useful in turning the results of parsing into real dates\n// by handling the zone options\nfunction parseDataToDateTime(parsed, parsedZone, opts, format, text, specificOffset) {\n const { setZone, zone } = opts;\n if (parsed && Object.keys(parsed).length !== 0) {\n const interpretationZone = parsedZone || zone,\n inst = DateTime.fromObject(parsed, {\n ...opts,\n zone: interpretationZone,\n specificOffset,\n });\n return setZone ? inst : inst.setZone(zone);\n } else {\n return DateTime.invalid(\n new Invalid(\"unparsable\", `the input \"${text}\" can't be parsed as ${format}`)\n );\n }\n}\n\n// if you want to output a technical format (e.g. RFC 2822), this helper\n// helps handle the details\nfunction toTechFormat(dt, format, allowZ = true) {\n return dt.isValid\n ? Formatter.create(Locale.create(\"en-US\"), {\n allowZ,\n forceSimple: true,\n }).formatDateTimeFromString(dt, format)\n : null;\n}\n\nfunction toISODate(o, extended) {\n const longFormat = o.c.year > 9999 || o.c.year < 0;\n let c = \"\";\n if (longFormat && o.c.year >= 0) c += \"+\";\n c += padStart(o.c.year, longFormat ? 6 : 4);\n\n if (extended) {\n c += \"-\";\n c += padStart(o.c.month);\n c += \"-\";\n c += padStart(o.c.day);\n } else {\n c += padStart(o.c.month);\n c += padStart(o.c.day);\n }\n return c;\n}\n\nfunction toISOTime(o, extended, suppressSeconds, suppressMilliseconds, includeOffset) {\n let c = padStart(o.c.hour);\n if (extended) {\n c += \":\";\n c += padStart(o.c.minute);\n if (o.c.second !== 0 || !suppressSeconds) {\n c += \":\";\n }\n } else {\n c += padStart(o.c.minute);\n }\n\n if (o.c.second !== 0 || !suppressSeconds) {\n c += padStart(o.c.second);\n\n if (o.c.millisecond !== 0 || !suppressMilliseconds) {\n c += \".\";\n c += padStart(o.c.millisecond, 3);\n }\n }\n\n if (includeOffset) {\n if (o.isOffsetFixed && o.offset === 0) {\n c += \"Z\";\n } else if (o.o < 0) {\n c += \"-\";\n c += padStart(Math.trunc(-o.o / 60));\n c += \":\";\n c += padStart(Math.trunc(-o.o % 60));\n } else {\n c += \"+\";\n c += padStart(Math.trunc(o.o / 60));\n c += \":\";\n c += padStart(Math.trunc(o.o % 60));\n }\n }\n return c;\n}\n\n// defaults for unspecified units in the supported calendars\nconst defaultUnitValues = {\n month: 1,\n day: 1,\n hour: 0,\n minute: 0,\n second: 0,\n millisecond: 0,\n },\n defaultWeekUnitValues = {\n weekNumber: 1,\n weekday: 1,\n hour: 0,\n minute: 0,\n second: 0,\n millisecond: 0,\n },\n defaultOrdinalUnitValues = {\n ordinal: 1,\n hour: 0,\n minute: 0,\n second: 0,\n millisecond: 0,\n };\n\n// Units in the supported calendars, sorted by bigness\nconst orderedUnits = [\"year\", \"month\", \"day\", \"hour\", \"minute\", \"second\", \"millisecond\"],\n orderedWeekUnits = [\n \"weekYear\",\n \"weekNumber\",\n \"weekday\",\n \"hour\",\n \"minute\",\n \"second\",\n \"millisecond\",\n ],\n orderedOrdinalUnits = [\"year\", \"ordinal\", \"hour\", \"minute\", \"second\", \"millisecond\"];\n\n// standardize case and plurality in units\nfunction normalizeUnit(unit) {\n const normalized = {\n year: \"year\",\n years: \"year\",\n month: \"month\",\n months: \"month\",\n day: \"day\",\n days: \"day\",\n hour: \"hour\",\n hours: \"hour\",\n minute: \"minute\",\n minutes: \"minute\",\n quarter: \"quarter\",\n quarters: \"quarter\",\n second: \"second\",\n seconds: \"second\",\n millisecond: \"millisecond\",\n milliseconds: \"millisecond\",\n weekday: \"weekday\",\n weekdays: \"weekday\",\n weeknumber: \"weekNumber\",\n weeksnumber: \"weekNumber\",\n weeknumbers: \"weekNumber\",\n weekyear: \"weekYear\",\n weekyears: \"weekYear\",\n ordinal: \"ordinal\",\n }[unit.toLowerCase()];\n\n if (!normalized) throw new InvalidUnitError(unit);\n\n return normalized;\n}\n\n// this is a dumbed down version of fromObject() that runs about 60% faster\n// but doesn't do any validation, makes a bunch of assumptions about what units\n// are present, and so on.\n\n// this is a dumbed down version of fromObject() that runs about 60% faster\n// but doesn't do any validation, makes a bunch of assumptions about what units\n// are present, and so on.\nfunction quickDT(obj, opts) {\n const zone = normalizeZone(opts.zone, Settings.defaultZone),\n loc = Locale.fromObject(opts),\n tsNow = Settings.now();\n\n let ts, o;\n\n // assume we have the higher-order units\n if (!isUndefined(obj.year)) {\n for (const u of orderedUnits) {\n if (isUndefined(obj[u])) {\n obj[u] = defaultUnitValues[u];\n }\n }\n\n const invalid = hasInvalidGregorianData(obj) || hasInvalidTimeData(obj);\n if (invalid) {\n return DateTime.invalid(invalid);\n }\n\n const offsetProvis = zone.offset(tsNow);\n [ts, o] = objToTS(obj, offsetProvis, zone);\n } else {\n ts = tsNow;\n }\n\n return new DateTime({ ts, zone, loc, o });\n}\n\nfunction diffRelative(start, end, opts) {\n const round = isUndefined(opts.round) ? true : opts.round,\n format = (c, unit) => {\n c = roundTo(c, round || opts.calendary ? 0 : 2, true);\n const formatter = end.loc.clone(opts).relFormatter(opts);\n return formatter.format(c, unit);\n },\n differ = (unit) => {\n if (opts.calendary) {\n if (!end.hasSame(start, unit)) {\n return end.startOf(unit).diff(start.startOf(unit), unit).get(unit);\n } else return 0;\n } else {\n return end.diff(start, unit).get(unit);\n }\n };\n\n if (opts.unit) {\n return format(differ(opts.unit), opts.unit);\n }\n\n for (const unit of opts.units) {\n const count = differ(unit);\n if (Math.abs(count) >= 1) {\n return format(count, unit);\n }\n }\n return format(start > end ? -0 : 0, opts.units[opts.units.length - 1]);\n}\n\nfunction lastOpts(argList) {\n let opts = {},\n args;\n if (argList.length > 0 && typeof argList[argList.length - 1] === \"object\") {\n opts = argList[argList.length - 1];\n args = Array.from(argList).slice(0, argList.length - 1);\n } else {\n args = Array.from(argList);\n }\n return [opts, args];\n}\n\n/**\n * A DateTime is an immutable data structure representing a specific date and time and accompanying methods. It contains class and instance methods for creating, parsing, interrogating, transforming, and formatting them.\n *\n * A DateTime comprises of:\n * * A timestamp. Each DateTime instance refers to a specific millisecond of the Unix epoch.\n * * A time zone. Each instance is considered in the context of a specific zone (by default the local system's zone).\n * * Configuration properties that effect how output strings are formatted, such as `locale`, `numberingSystem`, and `outputCalendar`.\n *\n * Here is a brief overview of the most commonly used functionality it provides:\n *\n * * **Creation**: To create a DateTime from its components, use one of its factory class methods: {@link DateTime#local}, {@link DateTime#utc}, and (most flexibly) {@link DateTime#fromObject}. To create one from a standard string format, use {@link DateTime#fromISO}, {@link DateTime#fromHTTP}, and {@link DateTime#fromRFC2822}. To create one from a custom string format, use {@link DateTime#fromFormat}. To create one from a native JS date, use {@link DateTime#fromJSDate}.\n * * **Gregorian calendar and time**: To examine the Gregorian properties of a DateTime individually (i.e as opposed to collectively through {@link DateTime#toObject}), use the {@link DateTime#year}, {@link DateTime#month},\n * {@link DateTime#day}, {@link DateTime#hour}, {@link DateTime#minute}, {@link DateTime#second}, {@link DateTime#millisecond} accessors.\n * * **Week calendar**: For ISO week calendar attributes, see the {@link DateTime#weekYear}, {@link DateTime#weekNumber}, and {@link DateTime#weekday} accessors.\n * * **Configuration** See the {@link DateTime#locale} and {@link DateTime#numberingSystem} accessors.\n * * **Transformation**: To transform the DateTime into other DateTimes, use {@link DateTime#set}, {@link DateTime#reconfigure}, {@link DateTime#setZone}, {@link DateTime#setLocale}, {@link DateTime.plus}, {@link DateTime#minus}, {@link DateTime#endOf}, {@link DateTime#startOf}, {@link DateTime#toUTC}, and {@link DateTime#toLocal}.\n * * **Output**: To convert the DateTime to other representations, use the {@link DateTime#toRelative}, {@link DateTime#toRelativeCalendar}, {@link DateTime#toJSON}, {@link DateTime#toISO}, {@link DateTime#toHTTP}, {@link DateTime#toObject}, {@link DateTime#toRFC2822}, {@link DateTime#toString}, {@link DateTime#toLocaleString}, {@link DateTime#toFormat}, {@link DateTime#toMillis} and {@link DateTime#toJSDate}.\n *\n * There's plenty others documented below. In addition, for more information on subtler topics like internationalization, time zones, alternative calendars, validity, and so on, see the external documentation.\n */\nexport default class DateTime {\n /**\n * @access private\n */\n constructor(config) {\n const zone = config.zone || Settings.defaultZone;\n\n let invalid =\n config.invalid ||\n (Number.isNaN(config.ts) ? new Invalid(\"invalid input\") : null) ||\n (!zone.isValid ? unsupportedZone(zone) : null);\n /**\n * @access private\n */\n this.ts = isUndefined(config.ts) ? Settings.now() : config.ts;\n\n let c = null,\n o = null;\n if (!invalid) {\n const unchanged = config.old && config.old.ts === this.ts && config.old.zone.equals(zone);\n\n if (unchanged) {\n [c, o] = [config.old.c, config.old.o];\n } else {\n const ot = zone.offset(this.ts);\n c = tsToObj(this.ts, ot);\n invalid = Number.isNaN(c.year) ? new Invalid(\"invalid input\") : null;\n c = invalid ? null : c;\n o = invalid ? null : ot;\n }\n }\n\n /**\n * @access private\n */\n this._zone = zone;\n /**\n * @access private\n */\n this.loc = config.loc || Locale.create();\n /**\n * @access private\n */\n this.invalid = invalid;\n /**\n * @access private\n */\n this.weekData = null;\n /**\n * @access private\n */\n this.c = c;\n /**\n * @access private\n */\n this.o = o;\n /**\n * @access private\n */\n this.isLuxonDateTime = true;\n }\n\n // CONSTRUCT\n\n /**\n * Create a DateTime for the current instant, in the system's time zone.\n *\n * Use Settings to override these default values if needed.\n * @example DateTime.now().toISO() //~> now in the ISO format\n * @return {DateTime}\n */\n static now() {\n return new DateTime({});\n }\n\n /**\n * Create a local DateTime\n * @param {number} [year] - The calendar year. If omitted (as in, call `local()` with no arguments), the current time will be used\n * @param {number} [month=1] - The month, 1-indexed\n * @param {number} [day=1] - The day of the month, 1-indexed\n * @param {number} [hour=0] - The hour of the day, in 24-hour time\n * @param {number} [minute=0] - The minute of the hour, meaning a number between 0 and 59\n * @param {number} [second=0] - The second of the minute, meaning a number between 0 and 59\n * @param {number} [millisecond=0] - The millisecond of the second, meaning a number between 0 and 999\n * @example DateTime.local() //~> now\n * @example DateTime.local({ zone: \"America/New_York\" }) //~> now, in US east coast time\n * @example DateTime.local(2017) //~> 2017-01-01T00:00:00\n * @example DateTime.local(2017, 3) //~> 2017-03-01T00:00:00\n * @example DateTime.local(2017, 3, 12, { locale: \"fr\" }) //~> 2017-03-12T00:00:00, with a French locale\n * @example DateTime.local(2017, 3, 12, 5) //~> 2017-03-12T05:00:00\n * @example DateTime.local(2017, 3, 12, 5, { zone: \"utc\" }) //~> 2017-03-12T05:00:00, in UTC\n * @example DateTime.local(2017, 3, 12, 5, 45) //~> 2017-03-12T05:45:00\n * @example DateTime.local(2017, 3, 12, 5, 45, 10) //~> 2017-03-12T05:45:10\n * @example DateTime.local(2017, 3, 12, 5, 45, 10, 765) //~> 2017-03-12T05:45:10.765\n * @return {DateTime}\n */\n static local() {\n const [opts, args] = lastOpts(arguments),\n [year, month, day, hour, minute, second, millisecond] = args;\n return quickDT({ year, month, day, hour, minute, second, millisecond }, opts);\n }\n\n /**\n * Create a DateTime in UTC\n * @param {number} [year] - The calendar year. If omitted (as in, call `utc()` with no arguments), the current time will be used\n * @param {number} [month=1] - The month, 1-indexed\n * @param {number} [day=1] - The day of the month\n * @param {number} [hour=0] - The hour of the day, in 24-hour time\n * @param {number} [minute=0] - The minute of the hour, meaning a number between 0 and 59\n * @param {number} [second=0] - The second of the minute, meaning a number between 0 and 59\n * @param {number} [millisecond=0] - The millisecond of the second, meaning a number between 0 and 999\n * @param {Object} options - configuration options for the DateTime\n * @param {string} [options.locale] - a locale to set on the resulting DateTime instance\n * @param {string} [options.outputCalendar] - the output calendar to set on the resulting DateTime instance\n * @param {string} [options.numberingSystem] - the numbering system to set on the resulting DateTime instance\n * @example DateTime.utc() //~> now\n * @example DateTime.utc(2017) //~> 2017-01-01T00:00:00Z\n * @example DateTime.utc(2017, 3) //~> 2017-03-01T00:00:00Z\n * @example DateTime.utc(2017, 3, 12) //~> 2017-03-12T00:00:00Z\n * @example DateTime.utc(2017, 3, 12, 5) //~> 2017-03-12T05:00:00Z\n * @example DateTime.utc(2017, 3, 12, 5, 45) //~> 2017-03-12T05:45:00Z\n * @example DateTime.utc(2017, 3, 12, 5, 45, { locale: \"fr\" }) //~> 2017-03-12T05:45:00Z with a French locale\n * @example DateTime.utc(2017, 3, 12, 5, 45, 10) //~> 2017-03-12T05:45:10Z\n * @example DateTime.utc(2017, 3, 12, 5, 45, 10, 765, { locale: \"fr\" }) //~> 2017-03-12T05:45:10.765Z with a French locale\n * @return {DateTime}\n */\n static utc() {\n const [opts, args] = lastOpts(arguments),\n [year, month, day, hour, minute, second, millisecond] = args;\n\n opts.zone = FixedOffsetZone.utcInstance;\n return quickDT({ year, month, day, hour, minute, second, millisecond }, opts);\n }\n\n /**\n * Create a DateTime from a JavaScript Date object. Uses the default zone.\n * @param {Date} date - a JavaScript Date object\n * @param {Object} options - configuration options for the DateTime\n * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into\n * @return {DateTime}\n */\n static fromJSDate(date, options = {}) {\n const ts = isDate(date) ? date.valueOf() : NaN;\n if (Number.isNaN(ts)) {\n return DateTime.invalid(\"invalid input\");\n }\n\n const zoneToUse = normalizeZone(options.zone, Settings.defaultZone);\n if (!zoneToUse.isValid) {\n return DateTime.invalid(unsupportedZone(zoneToUse));\n }\n\n return new DateTime({\n ts: ts,\n zone: zoneToUse,\n loc: Locale.fromObject(options),\n });\n }\n\n /**\n * Create a DateTime from a number of milliseconds since the epoch (meaning since 1 January 1970 00:00:00 UTC). Uses the default zone.\n * @param {number} milliseconds - a number of milliseconds since 1970 UTC\n * @param {Object} options - configuration options for the DateTime\n * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into\n * @param {string} [options.locale] - a locale to set on the resulting DateTime instance\n * @param {string} options.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @param {string} options.numberingSystem - the numbering system to set on the resulting DateTime instance\n * @return {DateTime}\n */\n static fromMillis(milliseconds, options = {}) {\n if (!isNumber(milliseconds)) {\n throw new InvalidArgumentError(\n `fromMillis requires a numerical input, but received a ${typeof milliseconds} with value ${milliseconds}`\n );\n } else if (milliseconds < -MAX_DATE || milliseconds > MAX_DATE) {\n // this isn't perfect because because we can still end up out of range because of additional shifting, but it's a start\n return DateTime.invalid(\"Timestamp out of range\");\n } else {\n return new DateTime({\n ts: milliseconds,\n zone: normalizeZone(options.zone, Settings.defaultZone),\n loc: Locale.fromObject(options),\n });\n }\n }\n\n /**\n * Create a DateTime from a number of seconds since the epoch (meaning since 1 January 1970 00:00:00 UTC). Uses the default zone.\n * @param {number} seconds - a number of seconds since 1970 UTC\n * @param {Object} options - configuration options for the DateTime\n * @param {string|Zone} [options.zone='local'] - the zone to place the DateTime into\n * @param {string} [options.locale] - a locale to set on the resulting DateTime instance\n * @param {string} options.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @param {string} options.numberingSystem - the numbering system to set on the resulting DateTime instance\n * @return {DateTime}\n */\n static fromSeconds(seconds, options = {}) {\n if (!isNumber(seconds)) {\n throw new InvalidArgumentError(\"fromSeconds requires a numerical input\");\n } else {\n return new DateTime({\n ts: seconds * 1000,\n zone: normalizeZone(options.zone, Settings.defaultZone),\n loc: Locale.fromObject(options),\n });\n }\n }\n\n /**\n * Create a DateTime from a JavaScript object with keys like 'year' and 'hour' with reasonable defaults.\n * @param {Object} obj - the object to create the DateTime from\n * @param {number} obj.year - a year, such as 1987\n * @param {number} obj.month - a month, 1-12\n * @param {number} obj.day - a day of the month, 1-31, depending on the month\n * @param {number} obj.ordinal - day of the year, 1-365 or 366\n * @param {number} obj.weekYear - an ISO week year\n * @param {number} obj.weekNumber - an ISO week number, between 1 and 52 or 53, depending on the year\n * @param {number} obj.weekday - an ISO weekday, 1-7, where 1 is Monday and 7 is Sunday\n * @param {number} obj.hour - hour of the day, 0-23\n * @param {number} obj.minute - minute of the hour, 0-59\n * @param {number} obj.second - second of the minute, 0-59\n * @param {number} obj.millisecond - millisecond of the second, 0-999\n * @param {Object} opts - options for creating this DateTime\n * @param {string|Zone} [opts.zone='local'] - interpret the numbers in the context of a particular zone. Can take any value taken as the first argument to setZone()\n * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance\n * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance\n * @example DateTime.fromObject({ year: 1982, month: 5, day: 25}).toISODate() //=> '1982-05-25'\n * @example DateTime.fromObject({ year: 1982 }).toISODate() //=> '1982-01-01'\n * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }) //~> today at 10:26:06\n * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'utc' }),\n * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'local' })\n * @example DateTime.fromObject({ hour: 10, minute: 26, second: 6 }, { zone: 'America/New_York' })\n * @example DateTime.fromObject({ weekYear: 2016, weekNumber: 2, weekday: 3 }).toISODate() //=> '2016-01-13'\n * @return {DateTime}\n */\n static fromObject(obj, opts = {}) {\n obj = obj || {};\n const zoneToUse = normalizeZone(opts.zone, Settings.defaultZone);\n if (!zoneToUse.isValid) {\n return DateTime.invalid(unsupportedZone(zoneToUse));\n }\n\n const tsNow = Settings.now(),\n offsetProvis = !isUndefined(opts.specificOffset)\n ? opts.specificOffset\n : zoneToUse.offset(tsNow),\n normalized = normalizeObject(obj, normalizeUnit),\n containsOrdinal = !isUndefined(normalized.ordinal),\n containsGregorYear = !isUndefined(normalized.year),\n containsGregorMD = !isUndefined(normalized.month) || !isUndefined(normalized.day),\n containsGregor = containsGregorYear || containsGregorMD,\n definiteWeekDef = normalized.weekYear || normalized.weekNumber,\n loc = Locale.fromObject(opts);\n\n // cases:\n // just a weekday -> this week's instance of that weekday, no worries\n // (gregorian data or ordinal) + (weekYear or weekNumber) -> error\n // (gregorian month or day) + ordinal -> error\n // otherwise just use weeks or ordinals or gregorian, depending on what's specified\n\n if ((containsGregor || containsOrdinal) && definiteWeekDef) {\n throw new ConflictingSpecificationError(\n \"Can't mix weekYear/weekNumber units with year/month/day or ordinals\"\n );\n }\n\n if (containsGregorMD && containsOrdinal) {\n throw new ConflictingSpecificationError(\"Can't mix ordinal dates with month/day\");\n }\n\n const useWeekData = definiteWeekDef || (normalized.weekday && !containsGregor);\n\n // configure ourselves to deal with gregorian dates or week stuff\n let units,\n defaultValues,\n objNow = tsToObj(tsNow, offsetProvis);\n if (useWeekData) {\n units = orderedWeekUnits;\n defaultValues = defaultWeekUnitValues;\n objNow = gregorianToWeek(objNow);\n } else if (containsOrdinal) {\n units = orderedOrdinalUnits;\n defaultValues = defaultOrdinalUnitValues;\n objNow = gregorianToOrdinal(objNow);\n } else {\n units = orderedUnits;\n defaultValues = defaultUnitValues;\n }\n\n // set default values for missing stuff\n let foundFirst = false;\n for (const u of units) {\n const v = normalized[u];\n if (!isUndefined(v)) {\n foundFirst = true;\n } else if (foundFirst) {\n normalized[u] = defaultValues[u];\n } else {\n normalized[u] = objNow[u];\n }\n }\n\n // make sure the values we have are in range\n const higherOrderInvalid = useWeekData\n ? hasInvalidWeekData(normalized)\n : containsOrdinal\n ? hasInvalidOrdinalData(normalized)\n : hasInvalidGregorianData(normalized),\n invalid = higherOrderInvalid || hasInvalidTimeData(normalized);\n\n if (invalid) {\n return DateTime.invalid(invalid);\n }\n\n // compute the actual time\n const gregorian = useWeekData\n ? weekToGregorian(normalized)\n : containsOrdinal\n ? ordinalToGregorian(normalized)\n : normalized,\n [tsFinal, offsetFinal] = objToTS(gregorian, offsetProvis, zoneToUse),\n inst = new DateTime({\n ts: tsFinal,\n zone: zoneToUse,\n o: offsetFinal,\n loc,\n });\n\n // gregorian data + weekday serves only to validate\n if (normalized.weekday && containsGregor && obj.weekday !== inst.weekday) {\n return DateTime.invalid(\n \"mismatched weekday\",\n `you can't specify both a weekday of ${normalized.weekday} and a date of ${inst.toISO()}`\n );\n }\n\n return inst;\n }\n\n /**\n * Create a DateTime from an ISO 8601 string\n * @param {string} text - the ISO string\n * @param {Object} opts - options to affect the creation\n * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the time to this zone\n * @param {boolean} [opts.setZone=false] - override the zone with a fixed-offset zone specified in the string itself, if it specifies one\n * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance\n * @param {string} [opts.outputCalendar] - the output calendar to set on the resulting DateTime instance\n * @param {string} [opts.numberingSystem] - the numbering system to set on the resulting DateTime instance\n * @example DateTime.fromISO('2016-05-25T09:08:34.123')\n * @example DateTime.fromISO('2016-05-25T09:08:34.123+06:00')\n * @example DateTime.fromISO('2016-05-25T09:08:34.123+06:00', {setZone: true})\n * @example DateTime.fromISO('2016-05-25T09:08:34.123', {zone: 'utc'})\n * @example DateTime.fromISO('2016-W05-4')\n * @return {DateTime}\n */\n static fromISO(text, opts = {}) {\n const [vals, parsedZone] = parseISODate(text);\n return parseDataToDateTime(vals, parsedZone, opts, \"ISO 8601\", text);\n }\n\n /**\n * Create a DateTime from an RFC 2822 string\n * @param {string} text - the RFC 2822 string\n * @param {Object} opts - options to affect the creation\n * @param {string|Zone} [opts.zone='local'] - convert the time to this zone. Since the offset is always specified in the string itself, this has no effect on the interpretation of string, merely the zone the resulting DateTime is expressed in.\n * @param {boolean} [opts.setZone=false] - override the zone with a fixed-offset zone specified in the string itself, if it specifies one\n * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance\n * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance\n * @example DateTime.fromRFC2822('25 Nov 2016 13:23:12 GMT')\n * @example DateTime.fromRFC2822('Fri, 25 Nov 2016 13:23:12 +0600')\n * @example DateTime.fromRFC2822('25 Nov 2016 13:23 Z')\n * @return {DateTime}\n */\n static fromRFC2822(text, opts = {}) {\n const [vals, parsedZone] = parseRFC2822Date(text);\n return parseDataToDateTime(vals, parsedZone, opts, \"RFC 2822\", text);\n }\n\n /**\n * Create a DateTime from an HTTP header date\n * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1\n * @param {string} text - the HTTP header date\n * @param {Object} opts - options to affect the creation\n * @param {string|Zone} [opts.zone='local'] - convert the time to this zone. Since HTTP dates are always in UTC, this has no effect on the interpretation of string, merely the zone the resulting DateTime is expressed in.\n * @param {boolean} [opts.setZone=false] - override the zone with the fixed-offset zone specified in the string. For HTTP dates, this is always UTC, so this option is equivalent to setting the `zone` option to 'utc', but this option is included for consistency with similar methods.\n * @param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance\n * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance\n * @example DateTime.fromHTTP('Sun, 06 Nov 1994 08:49:37 GMT')\n * @example DateTime.fromHTTP('Sunday, 06-Nov-94 08:49:37 GMT')\n * @example DateTime.fromHTTP('Sun Nov 6 08:49:37 1994')\n * @return {DateTime}\n */\n static fromHTTP(text, opts = {}) {\n const [vals, parsedZone] = parseHTTPDate(text);\n return parseDataToDateTime(vals, parsedZone, opts, \"HTTP\", opts);\n }\n\n /**\n * Create a DateTime from an input string and format string.\n * Defaults to en-US if no locale has been specified, regardless of the system's locale. For a table of tokens and their interpretations, see [here](https://moment.github.io/luxon/#/parsing?id=table-of-tokens).\n * @param {string} text - the string to parse\n * @param {string} fmt - the format the string is expected to be in (see the link below for the formats)\n * @param {Object} opts - options to affect the creation\n * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the DateTime to this zone\n * @param {boolean} [opts.setZone=false] - override the zone with a zone specified in the string itself, if it specifies one\n * @param {string} [opts.locale='en-US'] - a locale string to use when parsing. Will also set the DateTime to this locale\n * @param {string} opts.numberingSystem - the numbering system to use when parsing. Will also set the resulting DateTime to this numbering system\n * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @return {DateTime}\n */\n static fromFormat(text, fmt, opts = {}) {\n if (isUndefined(text) || isUndefined(fmt)) {\n throw new InvalidArgumentError(\"fromFormat requires an input string and a format\");\n }\n\n const { locale = null, numberingSystem = null } = opts,\n localeToUse = Locale.fromOpts({\n locale,\n numberingSystem,\n defaultToEN: true,\n }),\n [vals, parsedZone, specificOffset, invalid] = parseFromTokens(localeToUse, text, fmt);\n if (invalid) {\n return DateTime.invalid(invalid);\n } else {\n return parseDataToDateTime(vals, parsedZone, opts, `format ${fmt}`, text, specificOffset);\n }\n }\n\n /**\n * @deprecated use fromFormat instead\n */\n static fromString(text, fmt, opts = {}) {\n return DateTime.fromFormat(text, fmt, opts);\n }\n\n /**\n * Create a DateTime from a SQL date, time, or datetime\n * Defaults to en-US if no locale has been specified, regardless of the system's locale\n * @param {string} text - the string to parse\n * @param {Object} opts - options to affect the creation\n * @param {string|Zone} [opts.zone='local'] - use this zone if no offset is specified in the input string itself. Will also convert the DateTime to this zone\n * @param {boolean} [opts.setZone=false] - override the zone with a zone specified in the string itself, if it specifies one\n * @param {string} [opts.locale='en-US'] - a locale string to use when parsing. Will also set the DateTime to this locale\n * @param {string} opts.numberingSystem - the numbering system to use when parsing. Will also set the resulting DateTime to this numbering system\n * @param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance\n * @example DateTime.fromSQL('2017-05-15')\n * @example DateTime.fromSQL('2017-05-15 09:12:34')\n * @example DateTime.fromSQL('2017-05-15 09:12:34.342')\n * @example DateTime.fromSQL('2017-05-15 09:12:34.342+06:00')\n * @example DateTime.fromSQL('2017-05-15 09:12:34.342 America/Los_Angeles')\n * @example DateTime.fromSQL('2017-05-15 09:12:34.342 America/Los_Angeles', { setZone: true })\n * @example DateTime.fromSQL('2017-05-15 09:12:34.342', { zone: 'America/Los_Angeles' })\n * @example DateTime.fromSQL('09:12:34.342')\n * @return {DateTime}\n */\n static fromSQL(text, opts = {}) {\n const [vals, parsedZone] = parseSQL(text);\n return parseDataToDateTime(vals, parsedZone, opts, \"SQL\", text);\n }\n\n /**\n * Create an invalid DateTime.\n * @param {string} reason - simple string of why this DateTime is invalid. Should not contain parameters or anything else data-dependent\n * @param {string} [explanation=null] - longer explanation, may include parameters and other useful debugging information\n * @return {DateTime}\n */\n static invalid(reason, explanation = null) {\n if (!reason) {\n throw new InvalidArgumentError(\"need to specify a reason the DateTime is invalid\");\n }\n\n const invalid = reason instanceof Invalid ? reason : new Invalid(reason, explanation);\n\n if (Settings.throwOnInvalid) {\n throw new InvalidDateTimeError(invalid);\n } else {\n return new DateTime({ invalid });\n }\n }\n\n /**\n * Check if an object is a DateTime. Works across context boundaries\n * @param {object} o\n * @return {boolean}\n */\n static isDateTime(o) {\n return (o && o.isLuxonDateTime) || false;\n }\n\n // INFO\n\n /**\n * Get the value of unit.\n * @param {string} unit - a unit such as 'minute' or 'day'\n * @example DateTime.local(2017, 7, 4).get('month'); //=> 7\n * @example DateTime.local(2017, 7, 4).get('day'); //=> 4\n * @return {number}\n */\n get(unit) {\n return this[unit];\n }\n\n /**\n * Returns whether the DateTime is valid. Invalid DateTimes occur when:\n * * The DateTime was created from invalid calendar information, such as the 13th month or February 30\n * * The DateTime was created by an operation on another invalid date\n * @type {boolean}\n */\n get isValid() {\n return this.invalid === null;\n }\n\n /**\n * Returns an error code if this DateTime is invalid, or null if the DateTime is valid\n * @type {string}\n */\n get invalidReason() {\n return this.invalid ? this.invalid.reason : null;\n }\n\n /**\n * Returns an explanation of why this DateTime became invalid, or null if the DateTime is valid\n * @type {string}\n */\n get invalidExplanation() {\n return this.invalid ? this.invalid.explanation : null;\n }\n\n /**\n * Get the locale of a DateTime, such 'en-GB'. The locale is used when formatting the DateTime\n *\n * @type {string}\n */\n get locale() {\n return this.isValid ? this.loc.locale : null;\n }\n\n /**\n * Get the numbering system of a DateTime, such 'beng'. The numbering system is used when formatting the DateTime\n *\n * @type {string}\n */\n get numberingSystem() {\n return this.isValid ? this.loc.numberingSystem : null;\n }\n\n /**\n * Get the output calendar of a DateTime, such 'islamic'. The output calendar is used when formatting the DateTime\n *\n * @type {string}\n */\n get outputCalendar() {\n return this.isValid ? this.loc.outputCalendar : null;\n }\n\n /**\n * Get the time zone associated with this DateTime.\n * @type {Zone}\n */\n get zone() {\n return this._zone;\n }\n\n /**\n * Get the name of the time zone.\n * @type {string}\n */\n get zoneName() {\n return this.isValid ? this.zone.name : null;\n }\n\n /**\n * Get the year\n * @example DateTime.local(2017, 5, 25).year //=> 2017\n * @type {number}\n */\n get year() {\n return this.isValid ? this.c.year : NaN;\n }\n\n /**\n * Get the quarter\n * @example DateTime.local(2017, 5, 25).quarter //=> 2\n * @type {number}\n */\n get quarter() {\n return this.isValid ? Math.ceil(this.c.month / 3) : NaN;\n }\n\n /**\n * Get the month (1-12).\n * @example DateTime.local(2017, 5, 25).month //=> 5\n * @type {number}\n */\n get month() {\n return this.isValid ? this.c.month : NaN;\n }\n\n /**\n * Get the day of the month (1-30ish).\n * @example DateTime.local(2017, 5, 25).day //=> 25\n * @type {number}\n */\n get day() {\n return this.isValid ? this.c.day : NaN;\n }\n\n /**\n * Get the hour of the day (0-23).\n * @example DateTime.local(2017, 5, 25, 9).hour //=> 9\n * @type {number}\n */\n get hour() {\n return this.isValid ? this.c.hour : NaN;\n }\n\n /**\n * Get the minute of the hour (0-59).\n * @example DateTime.local(2017, 5, 25, 9, 30).minute //=> 30\n * @type {number}\n */\n get minute() {\n return this.isValid ? this.c.minute : NaN;\n }\n\n /**\n * Get the second of the minute (0-59).\n * @example DateTime.local(2017, 5, 25, 9, 30, 52).second //=> 52\n * @type {number}\n */\n get second() {\n return this.isValid ? this.c.second : NaN;\n }\n\n /**\n * Get the millisecond of the second (0-999).\n * @example DateTime.local(2017, 5, 25, 9, 30, 52, 654).millisecond //=> 654\n * @type {number}\n */\n get millisecond() {\n return this.isValid ? this.c.millisecond : NaN;\n }\n\n /**\n * Get the week year\n * @see https://en.wikipedia.org/wiki/ISO_week_date\n * @example DateTime.local(2014, 12, 31).weekYear //=> 2015\n * @type {number}\n */\n get weekYear() {\n return this.isValid ? possiblyCachedWeekData(this).weekYear : NaN;\n }\n\n /**\n * Get the week number of the week year (1-52ish).\n * @see https://en.wikipedia.org/wiki/ISO_week_date\n * @example DateTime.local(2017, 5, 25).weekNumber //=> 21\n * @type {number}\n */\n get weekNumber() {\n return this.isValid ? possiblyCachedWeekData(this).weekNumber : NaN;\n }\n\n /**\n * Get the day of the week.\n * 1 is Monday and 7 is Sunday\n * @see https://en.wikipedia.org/wiki/ISO_week_date\n * @example DateTime.local(2014, 11, 31).weekday //=> 4\n * @type {number}\n */\n get weekday() {\n return this.isValid ? possiblyCachedWeekData(this).weekday : NaN;\n }\n\n /**\n * Get the ordinal (meaning the day of the year)\n * @example DateTime.local(2017, 5, 25).ordinal //=> 145\n * @type {number|DateTime}\n */\n get ordinal() {\n return this.isValid ? gregorianToOrdinal(this.c).ordinal : NaN;\n }\n\n /**\n * Get the human readable short month name, such as 'Oct'.\n * Defaults to the system's locale if no locale has been specified\n * @example DateTime.local(2017, 10, 30).monthShort //=> Oct\n * @type {string}\n */\n get monthShort() {\n return this.isValid ? Info.months(\"short\", { locObj: this.loc })[this.month - 1] : null;\n }\n\n /**\n * Get the human readable long month name, such as 'October'.\n * Defaults to the system's locale if no locale has been specified\n * @example DateTime.local(2017, 10, 30).monthLong //=> October\n * @type {string}\n */\n get monthLong() {\n return this.isValid ? Info.months(\"long\", { locObj: this.loc })[this.month - 1] : null;\n }\n\n /**\n * Get the human readable short weekday, such as 'Mon'.\n * Defaults to the system's locale if no locale has been specified\n * @example DateTime.local(2017, 10, 30).weekdayShort //=> Mon\n * @type {string}\n */\n get weekdayShort() {\n return this.isValid ? Info.weekdays(\"short\", { locObj: this.loc })[this.weekday - 1] : null;\n }\n\n /**\n * Get the human readable long weekday, such as 'Monday'.\n * Defaults to the system's locale if no locale has been specified\n * @example DateTime.local(2017, 10, 30).weekdayLong //=> Monday\n * @type {string}\n */\n get weekdayLong() {\n return this.isValid ? Info.weekdays(\"long\", { locObj: this.loc })[this.weekday - 1] : null;\n }\n\n /**\n * Get the UTC offset of this DateTime in minutes\n * @example DateTime.now().offset //=> -240\n * @example DateTime.utc().offset //=> 0\n * @type {number}\n */\n get offset() {\n return this.isValid ? +this.o : NaN;\n }\n\n /**\n * Get the short human name for the zone's current offset, for example \"EST\" or \"EDT\".\n * Defaults to the system's locale if no locale has been specified\n * @type {string}\n */\n get offsetNameShort() {\n if (this.isValid) {\n return this.zone.offsetName(this.ts, {\n format: \"short\",\n locale: this.locale,\n });\n } else {\n return null;\n }\n }\n\n /**\n * Get the long human name for the zone's current offset, for example \"Eastern Standard Time\" or \"Eastern Daylight Time\".\n * Defaults to the system's locale if no locale has been specified\n * @type {string}\n */\n get offsetNameLong() {\n if (this.isValid) {\n return this.zone.offsetName(this.ts, {\n format: \"long\",\n locale: this.locale,\n });\n } else {\n return null;\n }\n }\n\n /**\n * Get whether this zone's offset ever changes, as in a DST.\n * @type {boolean}\n */\n get isOffsetFixed() {\n return this.isValid ? this.zone.isUniversal : null;\n }\n\n /**\n * Get whether the DateTime is in a DST.\n * @type {boolean}\n */\n get isInDST() {\n if (this.isOffsetFixed) {\n return false;\n } else {\n return (\n this.offset > this.set({ month: 1 }).offset || this.offset > this.set({ month: 5 }).offset\n );\n }\n }\n\n /**\n * Returns true if this DateTime is in a leap year, false otherwise\n * @example DateTime.local(2016).isInLeapYear //=> true\n * @example DateTime.local(2013).isInLeapYear //=> false\n * @type {boolean}\n */\n get isInLeapYear() {\n return isLeapYear(this.year);\n }\n\n /**\n * Returns the number of days in this DateTime's month\n * @example DateTime.local(2016, 2).daysInMonth //=> 29\n * @example DateTime.local(2016, 3).daysInMonth //=> 31\n * @type {number}\n */\n get daysInMonth() {\n return daysInMonth(this.year, this.month);\n }\n\n /**\n * Returns the number of days in this DateTime's year\n * @example DateTime.local(2016).daysInYear //=> 366\n * @example DateTime.local(2013).daysInYear //=> 365\n * @type {number}\n */\n get daysInYear() {\n return this.isValid ? daysInYear(this.year) : NaN;\n }\n\n /**\n * Returns the number of weeks in this DateTime's year\n * @see https://en.wikipedia.org/wiki/ISO_week_date\n * @example DateTime.local(2004).weeksInWeekYear //=> 53\n * @example DateTime.local(2013).weeksInWeekYear //=> 52\n * @type {number}\n */\n get weeksInWeekYear() {\n return this.isValid ? weeksInWeekYear(this.weekYear) : NaN;\n }\n\n /**\n * Returns the resolved Intl options for this DateTime.\n * This is useful in understanding the behavior of formatting methods\n * @param {Object} opts - the same options as toLocaleString\n * @return {Object}\n */\n resolvedLocaleOptions(opts = {}) {\n const { locale, numberingSystem, calendar } = Formatter.create(\n this.loc.clone(opts),\n opts\n ).resolvedOptions(this);\n return { locale, numberingSystem, outputCalendar: calendar };\n }\n\n // TRANSFORM\n\n /**\n * \"Set\" the DateTime's zone to UTC. Returns a newly-constructed DateTime.\n *\n * Equivalent to {@link DateTime#setZone}('utc')\n * @param {number} [offset=0] - optionally, an offset from UTC in minutes\n * @param {Object} [opts={}] - options to pass to `setZone()`\n * @return {DateTime}\n */\n toUTC(offset = 0, opts = {}) {\n return this.setZone(FixedOffsetZone.instance(offset), opts);\n }\n\n /**\n * \"Set\" the DateTime's zone to the host's local zone. Returns a newly-constructed DateTime.\n *\n * Equivalent to `setZone('local')`\n * @return {DateTime}\n */\n toLocal() {\n return this.setZone(Settings.defaultZone);\n }\n\n /**\n * \"Set\" the DateTime's zone to specified zone. Returns a newly-constructed DateTime.\n *\n * By default, the setter keeps the underlying time the same (as in, the same timestamp), but the new instance will report different local times and consider DSTs when making computations, as with {@link DateTime#plus}. You may wish to use {@link DateTime#toLocal} and {@link DateTime#toUTC} which provide simple convenience wrappers for commonly used zones.\n * @param {string|Zone} [zone='local'] - a zone identifier. As a string, that can be any IANA zone supported by the host environment, or a fixed-offset name of the form 'UTC+3', or the strings 'local' or 'utc'. You may also supply an instance of a {@link DateTime#Zone} class.\n * @param {Object} opts - options\n * @param {boolean} [opts.keepLocalTime=false] - If true, adjust the underlying time so that the local time stays the same, but in the target zone. You should rarely need this.\n * @return {DateTime}\n */\n setZone(zone, { keepLocalTime = false, keepCalendarTime = false } = {}) {\n zone = normalizeZone(zone, Settings.defaultZone);\n if (zone.equals(this.zone)) {\n return this;\n } else if (!zone.isValid) {\n return DateTime.invalid(unsupportedZone(zone));\n } else {\n let newTS = this.ts;\n if (keepLocalTime || keepCalendarTime) {\n const offsetGuess = zone.offset(this.ts);\n const asObj = this.toObject();\n [newTS] = objToTS(asObj, offsetGuess, zone);\n }\n return clone(this, { ts: newTS, zone });\n }\n }\n\n /**\n * \"Set\" the locale, numberingSystem, or outputCalendar. Returns a newly-constructed DateTime.\n * @param {Object} properties - the properties to set\n * @example DateTime.local(2017, 5, 25).reconfigure({ locale: 'en-GB' })\n * @return {DateTime}\n */\n reconfigure({ locale, numberingSystem, outputCalendar } = {}) {\n const loc = this.loc.clone({ locale, numberingSystem, outputCalendar });\n return clone(this, { loc });\n }\n\n /**\n * \"Set\" the locale. Returns a newly-constructed DateTime.\n * Just a convenient alias for reconfigure({ locale })\n * @example DateTime.local(2017, 5, 25).setLocale('en-GB')\n * @return {DateTime}\n */\n setLocale(locale) {\n return this.reconfigure({ locale });\n }\n\n /**\n * \"Set\" the values of specified units. Returns a newly-constructed DateTime.\n * You can only set units with this method; for \"setting\" metadata, see {@link DateTime#reconfigure} and {@link DateTime#setZone}.\n * @param {Object} values - a mapping of units to numbers\n * @example dt.set({ year: 2017 })\n * @example dt.set({ hour: 8, minute: 30 })\n * @example dt.set({ weekday: 5 })\n * @example dt.set({ year: 2005, ordinal: 234 })\n * @return {DateTime}\n */\n set(values) {\n if (!this.isValid) return this;\n\n const normalized = normalizeObject(values, normalizeUnit),\n settingWeekStuff =\n !isUndefined(normalized.weekYear) ||\n !isUndefined(normalized.weekNumber) ||\n !isUndefined(normalized.weekday),\n containsOrdinal = !isUndefined(normalized.ordinal),\n containsGregorYear = !isUndefined(normalized.year),\n containsGregorMD = !isUndefined(normalized.month) || !isUndefined(normalized.day),\n containsGregor = containsGregorYear || containsGregorMD,\n definiteWeekDef = normalized.weekYear || normalized.weekNumber;\n\n if ((containsGregor || containsOrdinal) && definiteWeekDef) {\n throw new ConflictingSpecificationError(\n \"Can't mix weekYear/weekNumber units with year/month/day or ordinals\"\n );\n }\n\n if (containsGregorMD && containsOrdinal) {\n throw new ConflictingSpecificationError(\"Can't mix ordinal dates with month/day\");\n }\n\n let mixed;\n if (settingWeekStuff) {\n mixed = weekToGregorian({ ...gregorianToWeek(this.c), ...normalized });\n } else if (!isUndefined(normalized.ordinal)) {\n mixed = ordinalToGregorian({ ...gregorianToOrdinal(this.c), ...normalized });\n } else {\n mixed = { ...this.toObject(), ...normalized };\n\n // if we didn't set the day but we ended up on an overflow date,\n // use the last day of the right month\n if (isUndefined(normalized.day)) {\n mixed.day = Math.min(daysInMonth(mixed.year, mixed.month), mixed.day);\n }\n }\n\n const [ts, o] = objToTS(mixed, this.o, this.zone);\n return clone(this, { ts, o });\n }\n\n /**\n * Add a period of time to this DateTime and return the resulting DateTime\n *\n * Adding hours, minutes, seconds, or milliseconds increases the timestamp by the right number of milliseconds. Adding days, months, or years shifts the calendar, accounting for DSTs and leap years along the way. Thus, `dt.plus({ hours: 24 })` may result in a different time than `dt.plus({ days: 1 })` if there's a DST shift in between.\n * @param {Duration|Object|number} duration - The amount to add. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()\n * @example DateTime.now().plus(123) //~> in 123 milliseconds\n * @example DateTime.now().plus({ minutes: 15 }) //~> in 15 minutes\n * @example DateTime.now().plus({ days: 1 }) //~> this time tomorrow\n * @example DateTime.now().plus({ days: -1 }) //~> this time yesterday\n * @example DateTime.now().plus({ hours: 3, minutes: 13 }) //~> in 3 hr, 13 min\n * @example DateTime.now().plus(Duration.fromObject({ hours: 3, minutes: 13 })) //~> in 3 hr, 13 min\n * @return {DateTime}\n */\n plus(duration) {\n if (!this.isValid) return this;\n const dur = Duration.fromDurationLike(duration);\n return clone(this, adjustTime(this, dur));\n }\n\n /**\n * Subtract a period of time to this DateTime and return the resulting DateTime\n * See {@link DateTime#plus}\n * @param {Duration|Object|number} duration - The amount to subtract. Either a Luxon Duration, a number of milliseconds, the object argument to Duration.fromObject()\n @return {DateTime}\n */\n minus(duration) {\n if (!this.isValid) return this;\n const dur = Duration.fromDurationLike(duration).negate();\n return clone(this, adjustTime(this, dur));\n }\n\n /**\n * \"Set\" this DateTime to the beginning of a unit of time.\n * @param {string} unit - The unit to go to the beginning of. Can be 'year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', or 'millisecond'.\n * @example DateTime.local(2014, 3, 3).startOf('month').toISODate(); //=> '2014-03-01'\n * @example DateTime.local(2014, 3, 3).startOf('year').toISODate(); //=> '2014-01-01'\n * @example DateTime.local(2014, 3, 3).startOf('week').toISODate(); //=> '2014-03-03', weeks always start on Mondays\n * @example DateTime.local(2014, 3, 3, 5, 30).startOf('day').toISOTime(); //=> '00:00.000-05:00'\n * @example DateTime.local(2014, 3, 3, 5, 30).startOf('hour').toISOTime(); //=> '05:00:00.000-05:00'\n * @return {DateTime}\n */\n startOf(unit) {\n if (!this.isValid) return this;\n const o = {},\n normalizedUnit = Duration.normalizeUnit(unit);\n switch (normalizedUnit) {\n case \"years\":\n o.month = 1;\n // falls through\n case \"quarters\":\n case \"months\":\n o.day = 1;\n // falls through\n case \"weeks\":\n case \"days\":\n o.hour = 0;\n // falls through\n case \"hours\":\n o.minute = 0;\n // falls through\n case \"minutes\":\n o.second = 0;\n // falls through\n case \"seconds\":\n o.millisecond = 0;\n break;\n case \"milliseconds\":\n break;\n // no default, invalid units throw in normalizeUnit()\n }\n\n if (normalizedUnit === \"weeks\") {\n o.weekday = 1;\n }\n\n if (normalizedUnit === \"quarters\") {\n const q = Math.ceil(this.month / 3);\n o.month = (q - 1) * 3 + 1;\n }\n\n return this.set(o);\n }\n\n /**\n * \"Set\" this DateTime to the end (meaning the last millisecond) of a unit of time\n * @param {string} unit - The unit to go to the end of. Can be 'year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', or 'millisecond'.\n * @example DateTime.local(2014, 3, 3).endOf('month').toISO(); //=> '2014-03-31T23:59:59.999-05:00'\n * @example DateTime.local(2014, 3, 3).endOf('year').toISO(); //=> '2014-12-31T23:59:59.999-05:00'\n * @example DateTime.local(2014, 3, 3).endOf('week').toISO(); // => '2014-03-09T23:59:59.999-05:00', weeks start on Mondays\n * @example DateTime.local(2014, 3, 3, 5, 30).endOf('day').toISO(); //=> '2014-03-03T23:59:59.999-05:00'\n * @example DateTime.local(2014, 3, 3, 5, 30).endOf('hour').toISO(); //=> '2014-03-03T05:59:59.999-05:00'\n * @return {DateTime}\n */\n endOf(unit) {\n return this.isValid\n ? this.plus({ [unit]: 1 })\n .startOf(unit)\n .minus(1)\n : this;\n }\n\n // OUTPUT\n\n /**\n * Returns a string representation of this DateTime formatted according to the specified format string.\n * **You may not want this.** See {@link DateTime#toLocaleString} for a more flexible formatting tool. For a table of tokens and their interpretations, see [here](https://moment.github.io/luxon/#/formatting?id=table-of-tokens).\n * Defaults to en-US if no locale has been specified, regardless of the system's locale.\n * @param {string} fmt - the format string\n * @param {Object} opts - opts to override the configuration options on this DateTime\n * @example DateTime.now().toFormat('yyyy LLL dd') //=> '2017 Apr 22'\n * @example DateTime.now().setLocale('fr').toFormat('yyyy LLL dd') //=> '2017 avr. 22'\n * @example DateTime.now().toFormat('yyyy LLL dd', { locale: \"fr\" }) //=> '2017 avr. 22'\n * @example DateTime.now().toFormat(\"HH 'hours and' mm 'minutes'\") //=> '20 hours and 55 minutes'\n * @return {string}\n */\n toFormat(fmt, opts = {}) {\n return this.isValid\n ? Formatter.create(this.loc.redefaultToEN(opts)).formatDateTimeFromString(this, fmt)\n : INVALID;\n }\n\n /**\n * Returns a localized string representing this date. Accepts the same options as the Intl.DateTimeFormat constructor and any presets defined by Luxon, such as `DateTime.DATE_FULL` or `DateTime.TIME_SIMPLE`.\n * The exact behavior of this method is browser-specific, but in general it will return an appropriate representation\n * of the DateTime in the assigned locale.\n * Defaults to the system's locale if no locale has been specified\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat\n * @param formatOpts {Object} - Intl.DateTimeFormat constructor options and configuration options\n * @param {Object} opts - opts to override the configuration options on this DateTime\n * @example DateTime.now().toLocaleString(); //=> 4/20/2017\n * @example DateTime.now().setLocale('en-gb').toLocaleString(); //=> '20/04/2017'\n * @example DateTime.now().toLocaleString({ locale: 'en-gb' }); //=> '20/04/2017'\n * @example DateTime.now().toLocaleString(DateTime.DATE_FULL); //=> 'April 20, 2017'\n * @example DateTime.now().toLocaleString(DateTime.TIME_SIMPLE); //=> '11:32 AM'\n * @example DateTime.now().toLocaleString(DateTime.DATETIME_SHORT); //=> '4/20/2017, 11:32 AM'\n * @example DateTime.now().toLocaleString({ weekday: 'long', month: 'long', day: '2-digit' }); //=> 'Thursday, April 20'\n * @example DateTime.now().toLocaleString({ weekday: 'short', month: 'short', day: '2-digit', hour: '2-digit', minute: '2-digit' }); //=> 'Thu, Apr 20, 11:27 AM'\n * @example DateTime.now().toLocaleString({ hour: '2-digit', minute: '2-digit', hourCycle: 'h23' }); //=> '11:32'\n * @return {string}\n */\n toLocaleString(formatOpts = Formats.DATE_SHORT, opts = {}) {\n return this.isValid\n ? Formatter.create(this.loc.clone(opts), formatOpts).formatDateTime(this)\n : INVALID;\n }\n\n /**\n * Returns an array of format \"parts\", meaning individual tokens along with metadata. This is allows callers to post-process individual sections of the formatted output.\n * Defaults to the system's locale if no locale has been specified\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/formatToParts\n * @param opts {Object} - Intl.DateTimeFormat constructor options, same as `toLocaleString`.\n * @example DateTime.now().toLocaleParts(); //=> [\n * //=> { type: 'day', value: '25' },\n * //=> { type: 'literal', value: '/' },\n * //=> { type: 'month', value: '05' },\n * //=> { type: 'literal', value: '/' },\n * //=> { type: 'year', value: '1982' }\n * //=> ]\n */\n toLocaleParts(opts = {}) {\n return this.isValid\n ? Formatter.create(this.loc.clone(opts), opts).formatDateTimeParts(this)\n : [];\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this DateTime\n * @param {Object} opts - options\n * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0\n * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0\n * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'\n * @param {string} [opts.format='extended'] - choose between the basic and extended format\n * @example DateTime.utc(1983, 5, 25).toISO() //=> '1982-05-25T00:00:00.000Z'\n * @example DateTime.now().toISO() //=> '2017-04-22T20:47:05.335-04:00'\n * @example DateTime.now().toISO({ includeOffset: false }) //=> '2017-04-22T20:47:05.335'\n * @example DateTime.now().toISO({ format: 'basic' }) //=> '20170422T204705.335-0400'\n * @return {string}\n */\n toISO({\n format = \"extended\",\n suppressSeconds = false,\n suppressMilliseconds = false,\n includeOffset = true,\n } = {}) {\n if (!this.isValid) {\n return null;\n }\n\n const ext = format === \"extended\";\n\n let c = toISODate(this, ext);\n c += \"T\";\n c += toISOTime(this, ext, suppressSeconds, suppressMilliseconds, includeOffset);\n return c;\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this DateTime's date component\n * @param {Object} opts - options\n * @param {string} [opts.format='extended'] - choose between the basic and extended format\n * @example DateTime.utc(1982, 5, 25).toISODate() //=> '1982-05-25'\n * @example DateTime.utc(1982, 5, 25).toISODate({ format: 'basic' }) //=> '19820525'\n * @return {string}\n */\n toISODate({ format = \"extended\" } = {}) {\n if (!this.isValid) {\n return null;\n }\n\n return toISODate(this, format === \"extended\");\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this DateTime's week date\n * @example DateTime.utc(1982, 5, 25).toISOWeekDate() //=> '1982-W21-2'\n * @return {string}\n */\n toISOWeekDate() {\n return toTechFormat(this, \"kkkk-'W'WW-c\");\n }\n\n /**\n * Returns an ISO 8601-compliant string representation of this DateTime's time component\n * @param {Object} opts - options\n * @param {boolean} [opts.suppressMilliseconds=false] - exclude milliseconds from the format if they're 0\n * @param {boolean} [opts.suppressSeconds=false] - exclude seconds from the format if they're 0\n * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'\n * @param {boolean} [opts.includePrefix=false] - include the `T` prefix\n * @param {string} [opts.format='extended'] - choose between the basic and extended format\n * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime() //=> '07:34:19.361Z'\n * @example DateTime.utc().set({ hour: 7, minute: 34, seconds: 0, milliseconds: 0 }).toISOTime({ suppressSeconds: true }) //=> '07:34Z'\n * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime({ format: 'basic' }) //=> '073419.361Z'\n * @example DateTime.utc().set({ hour: 7, minute: 34 }).toISOTime({ includePrefix: true }) //=> 'T07:34:19.361Z'\n * @return {string}\n */\n toISOTime({\n suppressMilliseconds = false,\n suppressSeconds = false,\n includeOffset = true,\n includePrefix = false,\n format = \"extended\",\n } = {}) {\n if (!this.isValid) {\n return null;\n }\n\n let c = includePrefix ? \"T\" : \"\";\n return (\n c +\n toISOTime(this, format === \"extended\", suppressSeconds, suppressMilliseconds, includeOffset)\n );\n }\n\n /**\n * Returns an RFC 2822-compatible string representation of this DateTime\n * @example DateTime.utc(2014, 7, 13).toRFC2822() //=> 'Sun, 13 Jul 2014 00:00:00 +0000'\n * @example DateTime.local(2014, 7, 13).toRFC2822() //=> 'Sun, 13 Jul 2014 00:00:00 -0400'\n * @return {string}\n */\n toRFC2822() {\n return toTechFormat(this, \"EEE, dd LLL yyyy HH:mm:ss ZZZ\", false);\n }\n\n /**\n * Returns a string representation of this DateTime appropriate for use in HTTP headers. The output is always expressed in GMT.\n * Specifically, the string conforms to RFC 1123.\n * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1\n * @example DateTime.utc(2014, 7, 13).toHTTP() //=> 'Sun, 13 Jul 2014 00:00:00 GMT'\n * @example DateTime.utc(2014, 7, 13, 19).toHTTP() //=> 'Sun, 13 Jul 2014 19:00:00 GMT'\n * @return {string}\n */\n toHTTP() {\n return toTechFormat(this.toUTC(), \"EEE, dd LLL yyyy HH:mm:ss 'GMT'\");\n }\n\n /**\n * Returns a string representation of this DateTime appropriate for use in SQL Date\n * @example DateTime.utc(2014, 7, 13).toSQLDate() //=> '2014-07-13'\n * @return {string}\n */\n toSQLDate() {\n if (!this.isValid) {\n return null;\n }\n return toISODate(this, true);\n }\n\n /**\n * Returns a string representation of this DateTime appropriate for use in SQL Time\n * @param {Object} opts - options\n * @param {boolean} [opts.includeZone=false] - include the zone, such as 'America/New_York'. Overrides includeOffset.\n * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'\n * @param {boolean} [opts.includeOffsetSpace=true] - include the space between the time and the offset, such as '05:15:16.345 -04:00'\n * @example DateTime.utc().toSQL() //=> '05:15:16.345'\n * @example DateTime.now().toSQL() //=> '05:15:16.345 -04:00'\n * @example DateTime.now().toSQL({ includeOffset: false }) //=> '05:15:16.345'\n * @example DateTime.now().toSQL({ includeZone: false }) //=> '05:15:16.345 America/New_York'\n * @return {string}\n */\n toSQLTime({ includeOffset = true, includeZone = false, includeOffsetSpace = true } = {}) {\n let fmt = \"HH:mm:ss.SSS\";\n\n if (includeZone || includeOffset) {\n if (includeOffsetSpace) {\n fmt += \" \";\n }\n if (includeZone) {\n fmt += \"z\";\n } else if (includeOffset) {\n fmt += \"ZZ\";\n }\n }\n\n return toTechFormat(this, fmt, true);\n }\n\n /**\n * Returns a string representation of this DateTime appropriate for use in SQL DateTime\n * @param {Object} opts - options\n * @param {boolean} [opts.includeZone=false] - include the zone, such as 'America/New_York'. Overrides includeOffset.\n * @param {boolean} [opts.includeOffset=true] - include the offset, such as 'Z' or '-04:00'\n * @param {boolean} [opts.includeOffsetSpace=true] - include the space between the time and the offset, such as '05:15:16.345 -04:00'\n * @example DateTime.utc(2014, 7, 13).toSQL() //=> '2014-07-13 00:00:00.000 Z'\n * @example DateTime.local(2014, 7, 13).toSQL() //=> '2014-07-13 00:00:00.000 -04:00'\n * @example DateTime.local(2014, 7, 13).toSQL({ includeOffset: false }) //=> '2014-07-13 00:00:00.000'\n * @example DateTime.local(2014, 7, 13).toSQL({ includeZone: true }) //=> '2014-07-13 00:00:00.000 America/New_York'\n * @return {string}\n */\n toSQL(opts = {}) {\n if (!this.isValid) {\n return null;\n }\n\n return `${this.toSQLDate()} ${this.toSQLTime(opts)}`;\n }\n\n /**\n * Returns a string representation of this DateTime appropriate for debugging\n * @return {string}\n */\n toString() {\n return this.isValid ? this.toISO() : INVALID;\n }\n\n /**\n * Returns the epoch milliseconds of this DateTime. Alias of {@link DateTime#toMillis}\n * @return {number}\n */\n valueOf() {\n return this.toMillis();\n }\n\n /**\n * Returns the epoch milliseconds of this DateTime.\n * @return {number}\n */\n toMillis() {\n return this.isValid ? this.ts : NaN;\n }\n\n /**\n * Returns the epoch seconds of this DateTime.\n * @return {number}\n */\n toSeconds() {\n return this.isValid ? this.ts / 1000 : NaN;\n }\n\n /**\n * Returns the epoch seconds (as a whole number) of this DateTime.\n * @return {number}\n */\n toUnixInteger() {\n return this.isValid ? Math.floor(this.ts / 1000) : NaN;\n }\n\n /**\n * Returns an ISO 8601 representation of this DateTime appropriate for use in JSON.\n * @return {string}\n */\n toJSON() {\n return this.toISO();\n }\n\n /**\n * Returns a BSON serializable equivalent to this DateTime.\n * @return {Date}\n */\n toBSON() {\n return this.toJSDate();\n }\n\n /**\n * Returns a JavaScript object with this DateTime's year, month, day, and so on.\n * @param opts - options for generating the object\n * @param {boolean} [opts.includeConfig=false] - include configuration attributes in the output\n * @example DateTime.now().toObject() //=> { year: 2017, month: 4, day: 22, hour: 20, minute: 49, second: 42, millisecond: 268 }\n * @return {Object}\n */\n toObject(opts = {}) {\n if (!this.isValid) return {};\n\n const base = { ...this.c };\n\n if (opts.includeConfig) {\n base.outputCalendar = this.outputCalendar;\n base.numberingSystem = this.loc.numberingSystem;\n base.locale = this.loc.locale;\n }\n return base;\n }\n\n /**\n * Returns a JavaScript Date equivalent to this DateTime.\n * @return {Date}\n */\n toJSDate() {\n return new Date(this.isValid ? this.ts : NaN);\n }\n\n // COMPARE\n\n /**\n * Return the difference between two DateTimes as a Duration.\n * @param {DateTime} otherDateTime - the DateTime to compare this one to\n * @param {string|string[]} [unit=['milliseconds']] - the unit or array of units (such as 'hours' or 'days') to include in the duration.\n * @param {Object} opts - options that affect the creation of the Duration\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @example\n * var i1 = DateTime.fromISO('1982-05-25T09:45'),\n * i2 = DateTime.fromISO('1983-10-14T10:30');\n * i2.diff(i1).toObject() //=> { milliseconds: 43807500000 }\n * i2.diff(i1, 'hours').toObject() //=> { hours: 12168.75 }\n * i2.diff(i1, ['months', 'days']).toObject() //=> { months: 16, days: 19.03125 }\n * i2.diff(i1, ['months', 'days', 'hours']).toObject() //=> { months: 16, days: 19, hours: 0.75 }\n * @return {Duration}\n */\n diff(otherDateTime, unit = \"milliseconds\", opts = {}) {\n if (!this.isValid || !otherDateTime.isValid) {\n return Duration.invalid(\"created by diffing an invalid DateTime\");\n }\n\n const durOpts = { locale: this.locale, numberingSystem: this.numberingSystem, ...opts };\n\n const units = maybeArray(unit).map(Duration.normalizeUnit),\n otherIsLater = otherDateTime.valueOf() > this.valueOf(),\n earlier = otherIsLater ? this : otherDateTime,\n later = otherIsLater ? otherDateTime : this,\n diffed = diff(earlier, later, units, durOpts);\n\n return otherIsLater ? diffed.negate() : diffed;\n }\n\n /**\n * Return the difference between this DateTime and right now.\n * See {@link DateTime#diff}\n * @param {string|string[]} [unit=['milliseconds']] - the unit or units units (such as 'hours' or 'days') to include in the duration\n * @param {Object} opts - options that affect the creation of the Duration\n * @param {string} [opts.conversionAccuracy='casual'] - the conversion system to use\n * @return {Duration}\n */\n diffNow(unit = \"milliseconds\", opts = {}) {\n return this.diff(DateTime.now(), unit, opts);\n }\n\n /**\n * Return an Interval spanning between this DateTime and another DateTime\n * @param {DateTime} otherDateTime - the other end point of the Interval\n * @return {Interval}\n */\n until(otherDateTime) {\n return this.isValid ? Interval.fromDateTimes(this, otherDateTime) : this;\n }\n\n /**\n * Return whether this DateTime is in the same unit of time as another DateTime.\n * Higher-order units must also be identical for this function to return `true`.\n * Note that time zones are **ignored** in this comparison, which compares the **local** calendar time. Use {@link DateTime#setZone} to convert one of the dates if needed.\n * @param {DateTime} otherDateTime - the other DateTime\n * @param {string} unit - the unit of time to check sameness on\n * @example DateTime.now().hasSame(otherDT, 'day'); //~> true if otherDT is in the same current calendar day\n * @return {boolean}\n */\n hasSame(otherDateTime, unit) {\n if (!this.isValid) return false;\n\n const inputMs = otherDateTime.valueOf();\n const adjustedToZone = this.setZone(otherDateTime.zone, { keepLocalTime: true });\n return adjustedToZone.startOf(unit) <= inputMs && inputMs <= adjustedToZone.endOf(unit);\n }\n\n /**\n * Equality check\n * Two DateTimes are equal iff they represent the same millisecond, have the same zone and location, and are both valid.\n * To compare just the millisecond values, use `+dt1 === +dt2`.\n * @param {DateTime} other - the other DateTime\n * @return {boolean}\n */\n equals(other) {\n return (\n this.isValid &&\n other.isValid &&\n this.valueOf() === other.valueOf() &&\n this.zone.equals(other.zone) &&\n this.loc.equals(other.loc)\n );\n }\n\n /**\n * Returns a string representation of a this time relative to now, such as \"in two days\". Can only internationalize if your\n * platform supports Intl.RelativeTimeFormat. Rounds down by default.\n * @param {Object} options - options that affect the output\n * @param {DateTime} [options.base=DateTime.now()] - the DateTime to use as the basis to which this time is compared. Defaults to now.\n * @param {string} [options.style=\"long\"] - the style of units, must be \"long\", \"short\", or \"narrow\"\n * @param {string|string[]} options.unit - use a specific unit or array of units; if omitted, or an array, the method will pick the best unit. Use an array or one of \"years\", \"quarters\", \"months\", \"weeks\", \"days\", \"hours\", \"minutes\", or \"seconds\"\n * @param {boolean} [options.round=true] - whether to round the numbers in the output.\n * @param {number} [options.padding=0] - padding in milliseconds. This allows you to round up the result if it fits inside the threshold. Don't use in combination with {round: false} because the decimal output will include the padding.\n * @param {string} options.locale - override the locale of this DateTime\n * @param {string} options.numberingSystem - override the numberingSystem of this DateTime. The Intl system may choose not to honor this\n * @example DateTime.now().plus({ days: 1 }).toRelative() //=> \"in 1 day\"\n * @example DateTime.now().setLocale(\"es\").toRelative({ days: 1 }) //=> \"dentro de 1 día\"\n * @example DateTime.now().plus({ days: 1 }).toRelative({ locale: \"fr\" }) //=> \"dans 23 heures\"\n * @example DateTime.now().minus({ days: 2 }).toRelative() //=> \"2 days ago\"\n * @example DateTime.now().minus({ days: 2 }).toRelative({ unit: \"hours\" }) //=> \"48 hours ago\"\n * @example DateTime.now().minus({ hours: 36 }).toRelative({ round: false }) //=> \"1.5 days ago\"\n */\n toRelative(options = {}) {\n if (!this.isValid) return null;\n const base = options.base || DateTime.fromObject({}, { zone: this.zone }),\n padding = options.padding ? (this < base ? -options.padding : options.padding) : 0;\n let units = [\"years\", \"months\", \"days\", \"hours\", \"minutes\", \"seconds\"];\n let unit = options.unit;\n if (Array.isArray(options.unit)) {\n units = options.unit;\n unit = undefined;\n }\n return diffRelative(base, this.plus(padding), {\n ...options,\n numeric: \"always\",\n units,\n unit,\n });\n }\n\n /**\n * Returns a string representation of this date relative to today, such as \"yesterday\" or \"next month\".\n * Only internationalizes on platforms that supports Intl.RelativeTimeFormat.\n * @param {Object} options - options that affect the output\n * @param {DateTime} [options.base=DateTime.now()] - the DateTime to use as the basis to which this time is compared. Defaults to now.\n * @param {string} options.locale - override the locale of this DateTime\n * @param {string} options.unit - use a specific unit; if omitted, the method will pick the unit. Use one of \"years\", \"quarters\", \"months\", \"weeks\", or \"days\"\n * @param {string} options.numberingSystem - override the numberingSystem of this DateTime. The Intl system may choose not to honor this\n * @example DateTime.now().plus({ days: 1 }).toRelativeCalendar() //=> \"tomorrow\"\n * @example DateTime.now().setLocale(\"es\").plus({ days: 1 }).toRelative() //=> \"\"mañana\"\n * @example DateTime.now().plus({ days: 1 }).toRelativeCalendar({ locale: \"fr\" }) //=> \"demain\"\n * @example DateTime.now().minus({ days: 2 }).toRelativeCalendar() //=> \"2 days ago\"\n */\n toRelativeCalendar(options = {}) {\n if (!this.isValid) return null;\n\n return diffRelative(options.base || DateTime.fromObject({}, { zone: this.zone }), this, {\n ...options,\n numeric: \"auto\",\n units: [\"years\", \"months\", \"days\"],\n calendary: true,\n });\n }\n\n /**\n * Return the min of several date times\n * @param {...DateTime} dateTimes - the DateTimes from which to choose the minimum\n * @return {DateTime} the min DateTime, or undefined if called with no argument\n */\n static min(...dateTimes) {\n if (!dateTimes.every(DateTime.isDateTime)) {\n throw new InvalidArgumentError(\"min requires all arguments be DateTimes\");\n }\n return bestBy(dateTimes, (i) => i.valueOf(), Math.min);\n }\n\n /**\n * Return the max of several date times\n * @param {...DateTime} dateTimes - the DateTimes from which to choose the maximum\n * @return {DateTime} the max DateTime, or undefined if called with no argument\n */\n static max(...dateTimes) {\n if (!dateTimes.every(DateTime.isDateTime)) {\n throw new InvalidArgumentError(\"max requires all arguments be DateTimes\");\n }\n return bestBy(dateTimes, (i) => i.valueOf(), Math.max);\n }\n\n // MISC\n\n /**\n * Explain how a string would be parsed by fromFormat()\n * @param {string} text - the string to parse\n * @param {string} fmt - the format the string is expected to be in (see description)\n * @param {Object} options - options taken by fromFormat()\n * @return {Object}\n */\n static fromFormatExplain(text, fmt, options = {}) {\n const { locale = null, numberingSystem = null } = options,\n localeToUse = Locale.fromOpts({\n locale,\n numberingSystem,\n defaultToEN: true,\n });\n return explainFromTokens(localeToUse, text, fmt);\n }\n\n /**\n * @deprecated use fromFormatExplain instead\n */\n static fromStringExplain(text, fmt, options = {}) {\n return DateTime.fromFormatExplain(text, fmt, options);\n }\n\n // FORMAT PRESETS\n\n /**\n * {@link DateTime#toLocaleString} format like 10/14/1983\n * @type {Object}\n */\n static get DATE_SHORT() {\n return Formats.DATE_SHORT;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Oct 14, 1983'\n * @type {Object}\n */\n static get DATE_MED() {\n return Formats.DATE_MED;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Fri, Oct 14, 1983'\n * @type {Object}\n */\n static get DATE_MED_WITH_WEEKDAY() {\n return Formats.DATE_MED_WITH_WEEKDAY;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'October 14, 1983'\n * @type {Object}\n */\n static get DATE_FULL() {\n return Formats.DATE_FULL;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Tuesday, October 14, 1983'\n * @type {Object}\n */\n static get DATE_HUGE() {\n return Formats.DATE_HUGE;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get TIME_SIMPLE() {\n return Formats.TIME_SIMPLE;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get TIME_WITH_SECONDS() {\n return Formats.TIME_WITH_SECONDS;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23 AM EDT'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get TIME_WITH_SHORT_OFFSET() {\n return Formats.TIME_WITH_SHORT_OFFSET;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23 AM Eastern Daylight Time'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get TIME_WITH_LONG_OFFSET() {\n return Formats.TIME_WITH_LONG_OFFSET;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30', always 24-hour.\n * @type {Object}\n */\n static get TIME_24_SIMPLE() {\n return Formats.TIME_24_SIMPLE;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23', always 24-hour.\n * @type {Object}\n */\n static get TIME_24_WITH_SECONDS() {\n return Formats.TIME_24_WITH_SECONDS;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23 EDT', always 24-hour.\n * @type {Object}\n */\n static get TIME_24_WITH_SHORT_OFFSET() {\n return Formats.TIME_24_WITH_SHORT_OFFSET;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '09:30:23 Eastern Daylight Time', always 24-hour.\n * @type {Object}\n */\n static get TIME_24_WITH_LONG_OFFSET() {\n return Formats.TIME_24_WITH_LONG_OFFSET;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '10/14/1983, 9:30 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_SHORT() {\n return Formats.DATETIME_SHORT;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like '10/14/1983, 9:30:33 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_SHORT_WITH_SECONDS() {\n return Formats.DATETIME_SHORT_WITH_SECONDS;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Oct 14, 1983, 9:30 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_MED() {\n return Formats.DATETIME_MED;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Oct 14, 1983, 9:30:33 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_MED_WITH_SECONDS() {\n return Formats.DATETIME_MED_WITH_SECONDS;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Fri, 14 Oct 1983, 9:30 AM'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_MED_WITH_WEEKDAY() {\n return Formats.DATETIME_MED_WITH_WEEKDAY;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'October 14, 1983, 9:30 AM EDT'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_FULL() {\n return Formats.DATETIME_FULL;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'October 14, 1983, 9:30:33 AM EDT'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_FULL_WITH_SECONDS() {\n return Formats.DATETIME_FULL_WITH_SECONDS;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Friday, October 14, 1983, 9:30 AM Eastern Daylight Time'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_HUGE() {\n return Formats.DATETIME_HUGE;\n }\n\n /**\n * {@link DateTime#toLocaleString} format like 'Friday, October 14, 1983, 9:30:33 AM Eastern Daylight Time'. Only 12-hour if the locale is.\n * @type {Object}\n */\n static get DATETIME_HUGE_WITH_SECONDS() {\n return Formats.DATETIME_HUGE_WITH_SECONDS;\n }\n}\n\n/**\n * @private\n */\nexport function friendlyDateTime(dateTimeish) {\n if (DateTime.isDateTime(dateTimeish)) {\n return dateTimeish;\n } else if (dateTimeish && dateTimeish.valueOf && isNumber(dateTimeish.valueOf())) {\n return DateTime.fromJSDate(dateTimeish);\n } else if (dateTimeish && typeof dateTimeish === \"object\") {\n return DateTime.fromObject(dateTimeish);\n } else {\n throw new InvalidArgumentError(\n `Unknown datetime argument: ${dateTimeish}, of type ${typeof dateTimeish}`\n );\n }\n}\n","/**\n * lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/** Used to match leading and trailing whitespace. */\nvar reTrim = /^\\s+|\\s+$/g;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n nativeMin = Math.min;\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n return root.Date.now();\n};\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n result = wait - timeSinceLastCall;\n\n return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && objectToString.call(value) == symbolTag);\n}\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = value.replace(reTrim, '');\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? 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A,v,p=0,m=0,g=0,U=0,w=0,_=0,P=0,b=0,y=0;0==p;)if(p=i(e,y,1),m=i(e,y+1,2),y+=3,0!=m){if(h&&(r=UZIP.F._check(r,b+(1<<17))),1==m&&(A=d.flmap,v=d.fdmap,_=511,P=31),2==m){g=s(e,y,5)+257,U=s(e,y+5,5)+1,w=s(e,y+10,4)+4,y+=14;for(var I=0;I<38;I+=2)d.itree[I]=0,d.itree[I+1]=0;var F=1;for(I=0;IF&&(F=E)}y+=3*w,f(d.itree,F),l(d.itree,F,d.imap),A=d.lmap,v=d.dmap,y=c(d.imap,(1<>>4;if(G>>>8==0)r[b++]=G;else{if(256==G)break;var M=b+G-254;if(G>264){var O=d.ldef[G-257];M=b+(O>>>3)+s(e,y,7&O),y+=7&O}var x=v[u(e,y)&P];y+=15&x;var S=x>>>4,Z=d.ddef[S],Q=(Z>>>4)+i(e,y,15&Z);for(y+=15&Z,h&&(r=UZIP.F._check(r,b+(1<<17)));b>>3),D=e[T-4]|e[T-3]<<8;h&&(r=UZIP.F._check(r,b+D)),r.set(new t(e.buffer,e.byteOffset+T,D),b),y=T+D<<3,b+=D}return r.length==b?r:r.slice(0,b)},UZIP.F._check=function(e,r){var t=e.length;if(r<=t)return e;var a=new Uint8Array(Math.max(t<<1,r));return a.set(e,0),a},UZIP.F._decodeTiny=function(e,r,t,a,i,s){for(var c=UZIP.F._bitsE,f=UZIP.F._get17,l=0;l>>4;if(d<=15)s[l]=d,l++;else{var h=0,A=0;16==d?(A=3+c(a,i,2),i+=2,h=s[l-1]):17==d?(A=3+c(a,i,3),i+=3):18==d&&(A=11+c(a,i,7),i+=7);for(var v=l+A;l>>1;si&&(i=f),s++}for(;s>1,f=e[s+1],l=c<<4|f,u=r-f,d=e[s]<>>15-r]=l,d++}},UZIP.F.revCodes=function(e,r){for(var t=UZIP.F.U.rev15,a=15-r,i=0;i>>a}},UZIP.F._putsE=function(e,r,t){t<<=7&r;var a=r>>>3;e[a]|=t,e[a+1]|=t>>>8},UZIP.F._putsF=function(e,r,t){t<<=7&r;var a=r>>>3;e[a]|=t,e[a+1]|=t>>>8,e[a+2]|=t>>>16},UZIP.F._bitsE=function(e,r,t){return(e[r>>>3]|e[1+(r>>>3)]<<8)>>>(7&r)&(1<>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16)>>>(7&r)&(1<>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16)>>>(7&r)},UZIP.F._get25=function(e,r){return(e[r>>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16|e[3+(r>>>3)]<<24)>>>(7&r)},UZIP.F.U=(r=Uint16Array,t=Uint32Array,{next_code:new r(16),bl_count:new r(16),ordr:[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],of0:[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,999,999,999],exb:[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0,0],ldef:new r(32),df0:[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,65535,65535],dxb:[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,0,0],ddef:new t(32),flmap:new r(512),fltree:[],fdmap:new r(32),fdtree:[],lmap:new r(32768),ltree:[],ttree:[],dmap:new r(32768),dtree:[],imap:new r(512),itree:[],rev15:new r(32768),lhst:new t(286),dhst:new t(30),ihst:new t(19),lits:new t(15e3),strt:new r(65536),prev:new r(32768)}),function(){for(var e=UZIP.F.U,r=0;r<32768;r++){var t=r;t=(4278255360&(t=(4042322160&(t=(3435973836&(t=(2863311530&t)>>>1|(1431655765&t)<<1))>>>2|(858993459&t)<<2))>>>4|(252645135&t)<<4))>>>8|(16711935&t)<<8,e.rev15[r]=(t>>>16|t<<16)>>>17}function pushV(e,r,t){for(;0!=r--;)e.push(0,t)}for(r=0;r<32;r++)e.ldef[r]=e.of0[r]<<3|e.exb[r],e.ddef[r]=e.df0[r]<<4|e.dxb[r];pushV(e.fltree,144,8),pushV(e.fltree,112,9),pushV(e.fltree,24,7),pushV(e.fltree,8,8),UZIP.F.makeCodes(e.fltree,9),UZIP.F.codes2map(e.fltree,9,e.flmap),UZIP.F.revCodes(e.fltree,9),pushV(e.fdtree,32,5),UZIP.F.makeCodes(e.fdtree,5),UZIP.F.codes2map(e.fdtree,5,e.fdmap),UZIP.F.revCodes(e.fdtree,5),pushV(e.itree,19,0),pushV(e.ltree,286,0),pushV(e.dtree,30,0),pushV(e.ttree,320,0)}()})),UZIP=Object.freeze(_mergeNamespaces({__proto__:null,default:UZIP_1},[UZIP_1])),UPNG={},N,W,H;UPNG.toRGBA8=function(e){var r=e.width,t=e.height;if(null==e.tabs.acTL)return[UPNG.toRGBA8.decodeImage(e.data,r,t,e).buffer];var a=[];null==e.frames[0].data&&(e.frames[0].data=e.data);for(var i=r*t*4,s=new Uint8Array(i),c=new Uint8Array(i),f=new Uint8Array(i),l=0;l>3)]>>7-((7&v)<<0)&1);f[_]=P[C],f[_+1]=P[C+1],f[_+2]=P[C+2],f[_+3]=B>2)]>>6-((3&v)<<1)&3);f[_]=P[C],f[_+1]=P[C+1],f[_+2]=P[C+2],f[_+3]=B>1)]>>4-((1&v)<<2)&15);f[_]=P[C],f[_+1]=P[C+1],f[_+2]=P[C+2],f[_+3]=B>>3)]>>>7-(7&x)&1))==255*g?0:255;l[O+x]=S<<24|R<<16|R<<8|R}else if(2==d)for(x=0;x>>2)]>>>6-((3&x)<<1)&3))==85*g?0:255;l[O+x]=S<<24|R<<16|R<<8|R}else if(4==d)for(x=0;x>>1)]>>>4-((1&x)<<2)&15))==17*g?0:255;l[O+x]=S<<24|R<<16|R<<8|R}else if(8==d)for(x=0;x>>2<<5));0==s;)if(s=m(e,v,1),c=m(e,v+1,2),v+=3,0!=c){if(y&&(r=H.H.W(r,A+(1<<17))),1==c&&(t=b.J,a=b.h,d=511,h=31),2==c){f=g(e,v,5)+257,l=g(e,v+5,5)+1,u=g(e,v+10,4)+4,v+=14;for(var I=1,F=0;F<38;F+=2)b.Q[F]=0,b.Q[F+1]=0;for(F=0;FI&&(I=E)}v+=3*u,w(b.Q,I),_(b.Q,I,b.u),t=b.w,a=b.d,v=U(b.u,(1<>>4;if(G>>>8==0)r[A++]=G;else{if(256==G)break;var M=A+G-254;if(G>264){var O=b.q[G-257];M=A+(O>>>3)+g(e,v,7&O),v+=7&O}var x=a[P(e,v)&h];v+=15&x;var S=x>>>4,Z=b.c[S],Q=(Z>>>4)+m(e,v,15&Z);for(v+=15&Z;A>>3),D=e[T-4]|e[T-3]<<8;y&&(r=H.H.W(r,A+D)),r.set(new i(e.buffer,e.byteOffset+T,D),A),v=T+D<<3,A+=D}return r.length==A?r:r.slice(0,A)},H.H.W=function(e,r){var t=e.length;if(r<=t)return e;var a=new Uint8Array(t<<1);return a.set(e,0),a},H.H.R=function(e,r,t,a,i,s){for(var c=H.H.e,f=H.H.Z,l=0;l>>4;if(d<=15)s[l]=d,l++;else{var h=0,A=0;16==d?(A=3+c(a,i,2),i+=2,h=s[l-1]):17==d?(A=3+c(a,i,3),i+=3):18==d&&(A=11+c(a,i,7),i+=7);for(var v=l+A;l>>1;si&&(i=f),s++}for(;s>1,f=e[s+1],l=c<<4|f,u=r-f,d=e[s]<>>15-r]=l,d++},H.H.l=function(e,r){for(var t=H.H.m.r,a=15-r,i=0;i>>a}},H.H.M=function(e,r,t){t<<=7&r;var a=r>>>3;e[a]|=t,e[a+1]|=t>>>8},H.H.I=function(e,r,t){t<<=7&r;var a=r>>>3;e[a]|=t,e[a+1]|=t>>>8,e[a+2]|=t>>>16},H.H.e=function(e,r,t){return(e[r>>>3]|e[1+(r>>>3)]<<8)>>>(7&r)&(1<>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16)>>>(7&r)&(1<>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16)>>>(7&r)},H.H.i=function(e,r){return(e[r>>>3]|e[1+(r>>>3)]<<8|e[2+(r>>>3)]<<16|e[3+(r>>>3)]<<24)>>>(7&r)},H.H.m=(N=Uint16Array,W=Uint32Array,{K:new N(16),j:new N(16),X:[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],S:[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,999,999,999],T:[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0,0],q:new N(32),p:[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,65535,65535],z:[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,0,0],c:new W(32),J:new N(512),_:[],h:new N(32),$:[],w:new N(32768),C:[],v:[],d:new N(32768),D:[],u:new N(512),Q:[],r:new N(32768),s:new W(286),Y:new W(30),a:new W(19),t:new W(15e3),k:new N(65536),g:new N(32768)}),function(){for(var e=H.H.m,r=0;r<32768;r++){var t=r;t=(4278255360&(t=(4042322160&(t=(3435973836&(t=(2863311530&t)>>>1|(1431655765&t)<<1))>>>2|(858993459&t)<<2))>>>4|(252645135&t)<<4))>>>8|(16711935&t)<<8,e.r[r]=(t>>>16|t<<16)>>>17}function n(e,r,t){for(;0!=r--;)e.push(0,t)}for(r=0;r<32;r++)e.q[r]=e.S[r]<<3|e.T[r],e.c[r]=e.p[r]<<4|e.z[r];n(e._,144,8),n(e._,112,9),n(e._,24,7),n(e._,8,8),H.H.n(e._,9),H.H.A(e._,9,e.J),H.H.l(e._,9),n(e.$,32,5),H.H.n(e.$,5),H.H.A(e.$,5,e.h),H.H.l(e.$,5),n(e.Q,19,0),n(e.C,286,0),n(e.D,30,0),n(e.v,320,0)}(),H.H.N),UPNG.decode._readInterlace=function(e,r){for(var t=r.width,a=r.height,i=UPNG.decode._getBPP(r),s=i>>3,c=Math.ceil(t*i/8),f=new Uint8Array(a*c),l=0,u=[0,0,4,0,2,0,1],d=[0,4,0,2,0,1,0],h=[8,8,8,4,4,2,2],A=[8,8,4,4,2,2,1],v=0;v<7;){for(var p=h[v],m=A[v],g=0,U=0,w=u[v];w>3])>>7-(7&F)&1,f[y*c+(I>>3)]|=E<<7-((7&I)<<0);if(2==i)E=(E=e[F>>3])>>6-(7&F)&3,f[y*c+(I>>2)]|=E<<6-((3&I)<<1);if(4==i)E=(E=e[F>>3])>>4-(7&F)&15,f[y*c+(I>>1)]|=E<<4-((1&I)<<2);if(i>=8)for(var C=y*c+I*s,B=0;B>3)+B];F+=i,I+=m}b++,y+=p}g*U!=0&&(l+=U*(1+P)),v+=1}return f},UPNG.decode._getBPP=function(e){return[1,null,3,1,2,null,4][e.ctype]*e.depth},UPNG.decode._filterZero=function(e,r,t,a,i){var s=UPNG.decode._getBPP(r),c=Math.ceil(a*s/8),f=UPNG.decode._paeth;s=Math.ceil(s/8);var l=0,u=1,d=e[t],h=0;if(d>1&&(e[t]=[0,0,1][d-2]),3==d)for(h=s;h>>1)&255;for(var A=0;A>>1);for(;h>>1)}else{for(;h>8&255,e[r+1]=255&t},readUint:function readUint(e,r){return 16777216*e[r]+(e[r+1]<<16|e[r+2]<<8|e[r+3])},writeUint:function writeUint(e,r,t){e[r]=t>>24&255,e[r+1]=t>>16&255,e[r+2]=t>>8&255,e[r+3]=255&t},readASCII:function readASCII(e,r,t){for(var a=\"\",i=0;i=0&&f>=0?(h=v*r+p<<2,A=(f+v)*i+c+p<<2):(h=(-f+v)*r-c+p<<2,A=v*i+p<<2),0==l)a[A]=e[h],a[A+1]=e[h+1],a[A+2]=e[h+2],a[A+3]=e[h+3];else if(1==l){var m=e[h+3]*(1/255),g=e[h]*m,U=e[h+1]*m,w=e[h+2]*m,_=a[A+3]*(1/255),P=a[A]*_,b=a[A+1]*_,y=a[A+2]*_,I=1-m,F=m+_*I,E=0==F?0:1/F;a[A+3]=255*F,a[A+0]=(g+P*I)*E,a[A+1]=(U+b*I)*E,a[A+2]=(w+y*I)*E}else if(2==l){m=e[h+3],g=e[h],U=e[h+1],w=e[h+2],_=a[A+3],P=a[A],b=a[A+1],y=a[A+2];m==_&&g==P&&U==b&&w==y?(a[A]=0,a[A+1]=0,a[A+2]=0,a[A+3]=0):(a[A]=g,a[A+1]=U,a[A+2]=w,a[A+3]=m)}else if(3==l){m=e[h+3],g=e[h],U=e[h+1],w=e[h+2],_=a[A+3],P=a[A],b=a[A+1],y=a[A+2];if(m==_&&g==P&&U==b&&w==y)continue;if(m<220&&_>20)return!1}return!0},UPNG.encode=function(e,r,t,a,i,s,c){null==a&&(a=0),null==c&&(c=!1);var f=UPNG.encode.compress(e,r,t,a,[!1,!1,!1,0,c]);return UPNG.encode.compressPNG(f,-1),UPNG.encode._main(f,r,t,i,s)},UPNG.encodeLL=function(e,r,t,a,i,s,c,f){for(var l={ctype:0+(1==a?0:2)+(0==i?0:4),depth:s,frames:[]},u=(a+i)*s,d=u*r,h=0;h1,h=!1,A=33+(d?20:0);if(null!=i.sRGB&&(A+=13),null!=i.pHYs&&(A+=21),3==e.ctype){for(var v=e.plte.length,p=0;p>>24!=255&&(h=!0);A+=8+3*v+4+(h?8+1*v+4:0)}for(var m=0;m>>8&255,y=_>>>16&255;g[u+w+0]=P,g[u+w+1]=b,g[u+w+2]=y}if(c(g,u+=3*v,s(g,u-3*v-4,3*v+4)),u+=4,h){c(g,u,v),l(g,u+=4,\"tRNS\"),u+=4;for(p=0;p>>24&255;c(g,u+=v,s(g,u-v-4,v+4)),u+=4}}var I=0;for(m=0;m>2,B>>2));for(v=0;vM&&x==G[g-M])O[g]=O[g-M];else{var S=_[x];if(null==S&&(_[x]=S=P.length,P.push(x),P.length>=300))break;O[g]=S}}}var Z=P.length;Z<=256&&0==u&&(h=Z<=2?1:Z<=4?2:Z<=16?4:8,h=Math.max(h,l));for(v=0;v>1)]|=L[q+$]<<4-4*(1&$);else if(2==h)for($=0;$>2)]|=L[q+$]<<6-2*(3&$);else if(1==h)for($=0;$>3)]|=L[q+$]<<7-1*(7&$)}T=V,d=3,z=1}else if(0==U&&1==w.length){V=new Uint8Array(M*Q*3);var j=M*Q;for(g=0;gF&&(F=B),CE&&(E=C))}-1==F&&(y=I=F=E=0),i&&(1==(1&y)&&y--,1==(1&I)&&I--);var R=(F-y+1)*(E-I+1);Rg&&(g=P),bU&&(U=b))}-1==g&&(p=m=g=U=0),c&&(1==(1&p)&&p--,1==(1&m)&&m--),s={x:p,y:m,width:g-p+1,height:U-m+1};var F=a[i];F.rect=s,F.blend=1,F.img=new Uint8Array(s.width*s.height*4),0==a[i-1].dispose?(UPNG._copyTile(u,r,t,F.img,s.width,s.height,-s.x,-s.y,0),UPNG.encode._prepareDiff(A,r,t,F.img,s)):UPNG._copyTile(A,r,t,F.img,s.width,s.height,-s.x,-s.y,0)},UPNG.encode._prepareDiff=function(e,r,t,a,i){UPNG._copyTile(e,r,t,a,i.width,i.height,-i.x,-i.y,2)},UPNG.encode._filterZero=function(e,r,t,a,i,s,c){var f,l=[],u=[0,1,2,3,4];-1!=s?u=[s]:(r*a>5e5||1==t)&&(u=[0]),c&&(f={level:0});for(var d,h=UZIP,A=0;A>1)+256&255;if(4==s)for(u=i;u>1)&255;for(u=i;u>1)&255}if(4==s){for(u=0;u>>1:t>>>=1;e[r]=t}return e}(),update:function update(e,r,t,a){for(var i=0;i>>8;return e},crc:function crc(e,r,t){return 4294967295^UPNG.crc.update(4294967295,e,r,t)}},UPNG.quantize=function(e,r){var t,a=new Uint8Array(e),i=a.slice(0),s=new Uint32Array(i.buffer),c=UPNG.quantize.getKDtree(i,r),f=c[0],l=c[1],u=UPNG.quantize.planeDst,d=a,h=s,A=d.length,v=new Uint8Array(a.length>>2);if(a.length<2e7)for(var p=0;p>2]=t.ind,h[p>>2]=t.est.rgba}else for(p=0;p>2]=t.ind,h[p>>2]=t.est.rgba}return{abuf:i.buffer,inds:v,plte:l}},UPNG.quantize.getKDtree=function(e,r,t){null==t&&(t=1e-4);var a=new Uint32Array(e.buffer),i={i0:0,i1:e.length,bst:null,est:null,tdst:0,left:null,right:null};i.bst=UPNG.quantize.stats(e,i.i0,i.i1),i.est=UPNG.quantize.estats(i.bst);for(var s=[i];s.lengthc&&(c=s[l].est.L,f=l);if(c=d||u.i1<=d)u.est.L=0;else{var h={i0:u.i0,i1:d,bst:null,est:null,tdst:0,left:null,right:null};h.bst=UPNG.quantize.stats(e,h.i0,h.i1),h.est=UPNG.quantize.estats(h.bst);var A={i0:d,i1:u.i1,bst:null,est:null,tdst:0,left:null,right:null};A.bst={R:[],m:[],N:u.bst.N-h.bst.N};for(l=0;l<16;l++)A.bst.R[l]=u.bst.R[l]-h.bst.R[l];for(l=0;l<4;l++)A.bst.m[l]=u.bst.m[l]-h.bst.m[l];A.est=UPNG.quantize.estats(A.bst),u.left=h,u.right=A,s[f]=h,s.push(A)}}s.sort((function(e,r){return r.bst.N-e.bst.N}));for(l=0;l0&&(c=e.right,f=e.left);var l=UPNG.quantize.getNearest(c,r,t,a,i);if(l.tdst<=s*s)return l;var u=UPNG.quantize.getNearest(f,r,t,a,i);return u.tdsts;)a-=4;if(t>=a)break;var f=r[t>>2];r[t>>2]=r[a>>2],r[a>>2]=f,t+=4,a-=4}for(;c(e,t,i)>s;)t-=4;return t+4},UPNG.quantize.vecDot=function(e,r,t){return e[r]*t[0]+e[r+1]*t[1]+e[r+2]*t[2]+e[r+3]*t[3]},UPNG.quantize.stats=function(e,r,t){for(var a=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],i=[0,0,0,0],s=t-r>>2,c=r;c>>0}},UPNG.M4={multVec:function multVec(e,r){return[e[0]*r[0]+e[1]*r[1]+e[2]*r[2]+e[3]*r[3],e[4]*r[0]+e[5]*r[1]+e[6]*r[2]+e[7]*r[3],e[8]*r[0]+e[9]*r[1]+e[10]*r[2]+e[11]*r[3],e[12]*r[0]+e[13]*r[1]+e[14]*r[2]+e[15]*r[3]]},dot:function dot(e,r){return e[0]*r[0]+e[1]*r[1]+e[2]*r[2]+e[3]*r[3]},sml:function sml(e,r){return[e*r[0],e*r[1],e*r[2],e*r[3]]}},UPNG.encode.concatRGBA=function(e){for(var r=0,t=0;t2&&void 0!==arguments[2]?arguments[2]:Date.now();return new Promise((function(a){for(var i=e.split(\",\"),s=i[0].match(/:(.*?);/)[1],c=globalThis.atob(i[1]),f=c.length,l=new Uint8Array(f);f--;)l[f]=c.charCodeAt(f);var u=new Blob([l],{type:s});u.name=r,u.lastModified=t,a(u)}))}function getDataUrlFromFile(e){return new Promise((function(r,t){var a=new CustomFileReader;a.onload=function(){return r(a.result)},a.onerror=function(e){return t(e)},a.readAsDataURL(e)}))}function loadImage(e){return new Promise((function(r,t){var a=new Image;a.onload=function(){return r(a)},a.onerror=function(e){return t(e)},a.src=e}))}function getBrowserName(){if(void 0!==getBrowserName.cachedResult)return getBrowserName.cachedResult;var e=BROWSER_NAME.ETC,r=navigator.userAgent;return/Chrom(e|ium)/i.test(r)?e=BROWSER_NAME.CHROME:/iP(ad|od|hone)/i.test(r)&&/WebKit/i.test(r)&&!/(CriOS|FxiOS|OPiOS|mercury)/i.test(r)?e=BROWSER_NAME.MOBILE_SAFARI:/Safari/i.test(r)?e=BROWSER_NAME.DESKTOP_SAFARI:/Firefox/i.test(r)?e=BROWSER_NAME.FIREFOX:(/MSIE/i.test(r)||!0==!!document.documentMode)&&(e=BROWSER_NAME.IE),getBrowserName.cachedResult=e,getBrowserName.cachedResult}function approximateBelowMaximumCanvasSizeOfBrowser(e,r){for(var t=getBrowserName(),a=MAX_CANVAS_SIZE[t],i=e,s=r,c=i*s,f=i>s?s/i:i/s;c>a*a;){var l=(a+i)/2,u=(a+s)/2;l1&&void 0!==arguments[1]?arguments[1]:void 0,t=approximateBelowMaximumCanvasSizeOfBrowser(e.width,e.height),a=t.width,i=t.height,s=getNewCanvasAndCtx(a,i),c=_slicedToArray(s,2),f=c[0],l=c[1];return r&&/jpe?g/.test(r)&&(l.fillStyle=\"white\",l.fillRect(0,0,f.width,f.height)),l.drawImage(e,0,0,f.width,f.height),f}function isIOS(){return void 0!==isIOS.cachedResult||(isIOS.cachedResult=[\"iPad Simulator\",\"iPhone Simulator\",\"iPod Simulator\",\"iPad\",\"iPhone\",\"iPod\"].includes(navigator.platform)||navigator.userAgent.includes(\"Mac\")&&\"undefined\"!=typeof document&&\"ontouchend\"in document),isIOS.cachedResult}function drawFileInCanvas(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return new Promise((function(t,a){var i,s,c=function $Try_2_Post(){try{return s=drawImageInCanvas(i,r.fileType||e.type),t([i,s])}catch(e){return a(e)}},f=function $Try_2_Catch(r){try{0;var t=function $Try_3_Catch(e){try{throw e}catch(e){return a(e)}};try{return getDataUrlFromFile(e).then((function(e){try{return loadImage(e).then((function(e){try{return i=e,function $Try_3_Post(){try{return c()}catch(e){return a(e)}}()}catch(e){return t(e)}}),t)}catch(e){return t(e)}}),t)}catch(e){t(e)}}catch(e){return a(e)}};try{if(isIOS()||[BROWSER_NAME.DESKTOP_SAFARI,BROWSER_NAME.MOBILE_SAFARI].includes(getBrowserName()))throw new Error(\"Skip createImageBitmap on IOS and Safari\");return createImageBitmap(e).then((function(e){try{return i=e,c()}catch(e){return f()}}),f)}catch(e){f()}}))}function canvasToFile(e,r,t,a){var i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:1;return new Promise((function(s,c){var f,l,u;if(\"image/png\"===r)return l=e.getContext(\"2d\").getImageData(0,0,e.width,e.height).data,u=UPNG.encode([l],e.width,e.height,256*i),(f=new Blob([u],{type:r})).name=t,f.lastModified=a,$If_4.call(this);{return\"function\"==typeof OffscreenCanvas&&e instanceof OffscreenCanvas?e.convertToBlob({type:r,quality:i}).then(function(e){try{return(f=e).name=t,f.lastModified=a,$If_5.call(this)}catch(e){return c(e)}}.bind(this),c):getFilefromDataUrl(e.toDataURL(r,i),t,a).then(function(e){try{return f=e,$If_5.call(this)}catch(e){return c(e)}}.bind(this),c);function $If_5(){return $If_4.call(this)}}function $If_4(){return s(f)}}))}function cleanupCanvasMemory(e){e.width=0,e.height=0}function isAutoOrientationInBrowser(){return new Promise((function(e,r){var t,a,i,s;return void 0!==isAutoOrientationInBrowser.cachedResult?e(isAutoOrientationInBrowser.cachedResult):(\"data:image/jpeg;base64,/9j/4QAiRXhpZgAATU0AKgAAAAgAAQESAAMAAAABAAYAAAAAAAD/2wCEAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAf/AABEIAAEAAgMBEQACEQEDEQH/xABKAAEAAAAAAAAAAAAAAAAAAAALEAEAAAAAAAAAAAAAAAAAAAAAAQEAAAAAAAAAAAAAAAAAAAAAEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwA/8H//2Q==\",getFilefromDataUrl(\"data:image/jpeg;base64,/9j/4QAiRXhpZgAATU0AKgAAAAgAAQESAAMAAAABAAYAAAAAAAD/2wCEAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAf/AABEIAAEAAgMBEQACEQEDEQH/xABKAAEAAAAAAAAAAAAAAAAAAAALEAEAAAAAAAAAAAAAAAAAAAAAAQEAAAAAAAAAAAAAAAAAAAAAEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwA/8H//2Q==\",\"test.jpg\",Date.now()).then((function(c){try{return drawFileInCanvas(t=c).then((function(c){try{return canvasToFile(a=c[1],t.type,t.name,t.lastModified).then((function(t){try{return i=t,cleanupCanvasMemory(a),drawFileInCanvas(i).then((function(t){try{return s=t[0],isAutoOrientationInBrowser.cachedResult=1===s.width&&2===s.height,e(isAutoOrientationInBrowser.cachedResult)}catch(e){return r(e)}}),r)}catch(e){return r(e)}}),r)}catch(e){return r(e)}}),r)}catch(e){return r(e)}}),r))}))}function getExifOrientation(e){return new Promise((function(r,t){var a=new CustomFileReader;a.onload=function(e){var t=new DataView(e.target.result);if(65496!=t.getUint16(0,!1))return r(-2);for(var a=t.byteLength,i=2;is||i>s)){var f=_slicedToArray(getNewCanvasAndCtx(a,i),2);c=f[0],t=f[1],a>i?(c.width=s,c.height=i/a*s):(c.width=a/i*s,c.height=s),t.drawImage(e,0,0,c.width,c.height),cleanupCanvasMemory(e)}return c}function followExifOrientation(e,r){var t=e.width,a=e.height,i=_slicedToArray(getNewCanvasAndCtx(t,a),2),s=i[0],c=i[1];switch(r>4&&r<9?(s.width=a,s.height=t):(s.width=t,s.height=a),r){case 2:c.transform(-1,0,0,1,t,0);break;case 3:c.transform(-1,0,0,-1,t,a);break;case 4:c.transform(1,0,0,-1,0,a);break;case 5:c.transform(0,1,1,0,0,0);break;case 6:c.transform(0,1,-1,0,a,0);break;case 7:c.transform(0,-1,-1,0,a,t);break;case 8:c.transform(0,-1,1,0,0,t)}return c.drawImage(e,0,0,t,a),cleanupCanvasMemory(e),s}function compress(e,r){var t=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;return new Promise((function(a,i){var s,c,f,l,u,d,h,A,v,p,m,g,U,w,_,P,b,y,I;function incProgress(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:5;if(r.signal&&r.signal.aborted)throw r.signal.reason;s+=e,r.onProgress(Math.min(s,100))}function setProgress(e){if(r.signal&&r.signal.aborted)throw r.signal.reason;s=Math.min(Math.max(e,s),100),r.onProgress(s)}return s=t,c=r.maxIteration||10,f=1024*r.maxSizeMB*1024,incProgress(),drawFileInCanvas(e,r).then(function(t){try{var s=_slicedToArray(t,2);return l=s[1],incProgress(),u=handleMaxWidthOrHeight(l,r),incProgress(),new Promise((function(t,a){var i;if(!(i=r.exifOrientation))return getExifOrientation(e).then(function(e){try{return i=e,$If_2.call(this)}catch(e){return a(e)}}.bind(this),a);function $If_2(){return t(i)}return $If_2.call(this)})).then(function(t){try{return d=t,incProgress(),isAutoOrientationInBrowser().then(function(t){try{return h=t?u:followExifOrientation(u,d),incProgress(),A=r.initialQuality||1,v=r.fileType||e.type,canvasToFile(h,v,e.name,e.lastModified,A).then(function(t){try{{if(p=t,incProgress(),m=p.size>f,g=p.size>e.size,!m&&!g)return setProgress(100),a(p);var s;function $Loop_3(){if(c--&&(_>f||_>U)){var r,t,a=_slicedToArray(getNewCanvasAndCtx(r=I?.95*y.width:y.width,t=I?.95*y.height:y.height),2);return b=a[0],a[1].drawImage(y,0,0,r,t),A*=.95,canvasToFile(b,v,e.name,e.lastModified,A).then((function(e){try{return P=e,cleanupCanvasMemory(y),y=b,_=P.size,setProgress(Math.min(99,Math.floor((w-_)/(w-f)*100))),$Loop_3}catch(e){return i(e)}}),i)}return[1]}return U=e.size,w=p.size,_=w,y=h,I=!r.alwaysKeepResolution&&m,(s=function(e){for(;e;){if(e.then)return void e.then(s,i);try{if(e.pop){if(e.length)return e.pop()?$Loop_3_exit.call(this):e;e=$Loop_3}else e=e.call(this)}catch(e){return i(e)}}}.bind(this))($Loop_3);function $Loop_3_exit(){return cleanupCanvasMemory(y),cleanupCanvasMemory(b),cleanupCanvasMemory(u),cleanupCanvasMemory(h),cleanupCanvasMemory(l),setProgress(100),a(P)}}}catch(e){return i(e)}}.bind(this),i)}catch(e){return i(e)}}.bind(this),i)}catch(e){return i(e)}}.bind(this),i)}catch(e){return i(e)}}.bind(this),i)}))}var cnt=0,imageCompressionLibUrl,worker;function createWorker(e){var r=[];return\"function\"==typeof e?r.push(\"(\".concat(e,\")()\")):r.push(e),new Worker(URL.createObjectURL(new Blob(r)))}function createSourceObject(e){return URL.createObjectURL(new Blob([e],{type:\"application/javascript\"}))}function stringify(e){return JSON.stringify(e,(function(e,r){return\"function\"==typeof r?\"BIC_FN:::(function () { return \".concat(r.toString(),\" })()\"):r}))}function parse(o){if(\"string\"==typeof o)return o;var result={};return Object.entries(o).forEach((function(_ref){var _ref2=_slicedToArray(_ref,2),key=_ref2[0],value=_ref2[1];if(\"string\"==typeof value&&value.startsWith(\"BIC_FN:::\"))try{result[key]=eval(value.replace(/^BIC_FN:::/,\"\"))}catch(e){throw e}else result[key]=parse(value)})),result}function generateLib(){return createSourceObject(\"\\n // reconstruct library\\n function imageCompression (){return (\".concat(imageCompression,\").apply(null, arguments)}\\n\\n imageCompression.getDataUrlFromFile = \").concat(imageCompression.getDataUrlFromFile,\"\\n imageCompression.getFilefromDataUrl = \").concat(imageCompression.getFilefromDataUrl,\"\\n imageCompression.loadImage = \").concat(imageCompression.loadImage,\"\\n imageCompression.drawImageInCanvas = \").concat(imageCompression.drawImageInCanvas,\"\\n imageCompression.drawFileInCanvas = \").concat(imageCompression.drawFileInCanvas,\"\\n imageCompression.canvasToFile = \").concat(imageCompression.canvasToFile,\"\\n imageCompression.getExifOrientation = \").concat(imageCompression.getExifOrientation,\"\\n imageCompression.handleMaxWidthOrHeight = \").concat(imageCompression.handleMaxWidthOrHeight,\"\\n imageCompression.followExifOrientation = \").concat(imageCompression.followExifOrientation,\"\\n imageCompression.cleanupCanvasMemory = \").concat(imageCompression.cleanupCanvasMemory,\"\\n imageCompression.isAutoOrientationInBrowser = \").concat(imageCompression.isAutoOrientationInBrowser,\"\\n imageCompression.approximateBelowMaximumCanvasSizeOfBrowser = \").concat(imageCompression.approximateBelowMaximumCanvasSizeOfBrowser,\"\\n imageCompression.getBrowserName = \").concat(imageCompression.getBrowserName,\"\\n\\n // functions / objects\\n getDataUrlFromFile = imageCompression.getDataUrlFromFile\\n getFilefromDataUrl = imageCompression.getFilefromDataUrl\\n loadImage = imageCompression.loadImage\\n drawImageInCanvas = imageCompression.drawImageInCanvas\\n drawFileInCanvas = imageCompression.drawFileInCanvas\\n canvasToFile = imageCompression.canvasToFile\\n getExifOrientation = imageCompression.getExifOrientation\\n handleMaxWidthOrHeight = imageCompression.handleMaxWidthOrHeight\\n followExifOrientation = imageCompression.followExifOrientation\\n cleanupCanvasMemory = imageCompression.cleanupCanvasMemory\\n isAutoOrientationInBrowser = imageCompression.isAutoOrientationInBrowser\\n approximateBelowMaximumCanvasSizeOfBrowser = imageCompression.approximateBelowMaximumCanvasSizeOfBrowser\\n getBrowserName = imageCompression.getBrowserName\\n isIOS = \").concat(isIOS,\"\\n \\n getNewCanvasAndCtx = \").concat(getNewCanvasAndCtx,\"\\n CustomFileReader = FileReader\\n CustomFile = File\\n MAX_CANVAS_SIZE = \").concat(JSON.stringify(MAX_CANVAS_SIZE),\"\\n BROWSER_NAME = \").concat(JSON.stringify(BROWSER_NAME),\"\\n function compress (){return (\").concat(compress,\").apply(null, arguments)}\\n\\n // core-js\\n function _slicedToArray(arr, n) { return arr }\\n function _typeof(a) { return typeof a }\\n function _objectSpread2(target) {\\n for (var i = 1; i < arguments.length; i++) {\\n var source = arguments[i] != null ? arguments[i] : {};\\n \\n Object.assign(target, source)\\n }\\n \\n return target;\\n }\\n\\n // Libraries\\n const parse = \").concat(parse,\"\\n const UPNG = {}\\n UPNG.toRGBA8 = \").concat(UPNG.toRGBA8,\"\\n UPNG.toRGBA8.decodeImage = \").concat(UPNG.toRGBA8.decodeImage,\"\\n UPNG.decode = \").concat(UPNG.decode,\"\\n UPNG.decode._decompress = \").concat(UPNG.decode._decompress,\"\\n UPNG.decode._inflate = \").concat(UPNG.decode._inflate,\"\\n UPNG.decode._readInterlace = \").concat(UPNG.decode._readInterlace,\"\\n UPNG.decode._getBPP = \").concat(UPNG.decode._getBPP,\" \\n UPNG.decode._filterZero = \").concat(UPNG.decode._filterZero,\"\\n UPNG.decode._paeth = \").concat(UPNG.decode._paeth,\"\\n UPNG.decode._IHDR = \").concat(UPNG.decode._IHDR,\"\\n UPNG._bin = parse(\").concat(stringify(UPNG._bin),\")\\n UPNG._copyTile = \").concat(UPNG._copyTile,\"\\n UPNG.encode = \").concat(UPNG.encode,\"\\n UPNG.encodeLL = \").concat(UPNG.encodeLL,\" \\n UPNG.encode._main = \").concat(UPNG.encode._main,\"\\n UPNG.encode.compressPNG = \").concat(UPNG.encode.compressPNG,\" \\n UPNG.encode.compress = \").concat(UPNG.encode.compress,\"\\n UPNG.encode.framize = \").concat(UPNG.encode.framize,\" \\n UPNG.encode._updateFrame = \").concat(UPNG.encode._updateFrame,\" \\n UPNG.encode._prepareDiff = \").concat(UPNG.encode._prepareDiff,\" \\n UPNG.encode._filterZero = \").concat(UPNG.encode._filterZero,\" \\n UPNG.encode._filterLine = \").concat(UPNG.encode._filterLine,\"\\n UPNG.encode.concatRGBA = \").concat(UPNG.encode.concatRGBA,\"\\n UPNG.crc = parse(\").concat(stringify(UPNG.crc),\")\\n UPNG.crc.table = ( function() {\\n var tab = new Uint32Array(256);\\n for (var n=0; n<256; n++) {\\n var c = n;\\n for (var k=0; k<8; k++) {\\n if (c & 1) c = 0xedb88320 ^ (c >>> 1);\\n else c = c >>> 1;\\n }\\n tab[n] = c; }\\n return tab; })()\\n UPNG.quantize = \").concat(UPNG.quantize,\" \\n UPNG.quantize.getKDtree = \").concat(UPNG.quantize.getKDtree,\" \\n UPNG.quantize.getNearest = \").concat(UPNG.quantize.getNearest,\" \\n UPNG.quantize.planeDst = \").concat(UPNG.quantize.planeDst,\" \\n UPNG.quantize.dist = \").concat(UPNG.quantize.dist,\" \\n UPNG.quantize.splitPixels = \").concat(UPNG.quantize.splitPixels,\" \\n UPNG.quantize.vecDot = \").concat(UPNG.quantize.vecDot,\" \\n UPNG.quantize.stats = \").concat(UPNG.quantize.stats,\" \\n UPNG.quantize.estats = \").concat(UPNG.quantize.estats,\"\\n UPNG.M4 = parse(\").concat(stringify(UPNG.M4),\")\\n UPNG.encode.concatRGBA = \").concat(UPNG.encode.concatRGBA,'\\n UPNG.inflateRaw=function(){\\n var H={};H.H={};H.H.N=function(N,W){var R=Uint8Array,i=0,m=0,J=0,h=0,Q=0,X=0,u=0,w=0,d=0,v,C;\\n if(N[0]==3&&N[1]==0)return W?W:new R(0);var V=H.H,n=V.b,A=V.e,l=V.R,M=V.n,I=V.A,e=V.Z,b=V.m,Z=W==null;\\n if(Z)W=new R(N.length>>>2<<5);while(i==0){i=n(N,d,1);m=n(N,d+1,2);d+=3;if(m==0){if((d&7)!=0)d+=8-(d&7);\\n var D=(d>>>3)+4,q=N[D-4]|N[D-3]<<8;if(Z)W=H.H.W(W,w+q);W.set(new R(N.buffer,N.byteOffset+D,q),w);d=D+q<<3;\\n w+=q;continue}if(Z)W=H.H.W(W,w+(1<<17));if(m==1){v=b.J;C=b.h;X=(1<<9)-1;u=(1<<5)-1}if(m==2){J=A(N,d,5)+257;\\n h=A(N,d+5,5)+1;Q=A(N,d+10,4)+4;d+=14;var E=d,j=1;for(var c=0;c<38;c+=2){b.Q[c]=0;b.Q[c+1]=0}for(var c=0;\\n cj)j=K}d+=3*Q;M(b.Q,j);I(b.Q,j,b.u);v=b.w;C=b.d;\\n d=l(b.u,(1<>>4;if(p>>>8==0){W[w++]=p}else if(p==256){break}else{var z=w+p-254;\\n if(p>264){var _=b.q[p-257];z=w+(_>>>3)+A(N,d,_&7);d+=_&7}var $=C[e(N,d)&u];d+=$&15;var s=$>>>4,Y=b.c[s],a=(Y>>>4)+n(N,d,Y&15);\\n d+=Y&15;while(w>>4;\\n if(b<=15){A[I]=b;I++}else{var Z=0,m=0;if(b==16){m=3+l(V,n,2);n+=2;Z=A[I-1]}else if(b==17){m=3+l(V,n,3);\\n n+=3}else if(b==18){m=11+l(V,n,7);n+=7}var J=I+m;while(I>>1;\\n while(An)n=M;A++}while(A>1,I=N[l+1],e=M<<4|I,b=W-I,Z=N[l]<>>15-W;R[J]=e;Z++}}};H.H.l=function(N,W){var R=H.H.m.r,V=15-W;for(var n=0;n>>V}};H.H.M=function(N,W,R){R=R<<(W&7);var V=W>>>3;N[V]|=R;N[V+1]|=R>>>8};\\n H.H.I=function(N,W,R){R=R<<(W&7);var V=W>>>3;N[V]|=R;N[V+1]|=R>>>8;N[V+2]|=R>>>16};H.H.e=function(N,W,R){return(N[W>>>3]|N[(W>>>3)+1]<<8)>>>(W&7)&(1<>>3]|N[(W>>>3)+1]<<8|N[(W>>>3)+2]<<16)>>>(W&7)&(1<>>3]|N[(W>>>3)+1]<<8|N[(W>>>3)+2]<<16)>>>(W&7)};\\n H.H.i=function(N,W){return(N[W>>>3]|N[(W>>>3)+1]<<8|N[(W>>>3)+2]<<16|N[(W>>>3)+3]<<24)>>>(W&7)};H.H.m=function(){var N=Uint16Array,W=Uint32Array;\\n return{K:new N(16),j:new N(16),X:[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],S:[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,999,999,999],T:[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0,0],q:new N(32),p:[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,65535,65535],z:[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,0,0],c:new W(32),J:new N(512),_:[],h:new N(32),$:[],w:new N(32768),C:[],v:[],d:new N(32768),D:[],u:new N(512),Q:[],r:new N(1<<15),s:new W(286),Y:new W(30),a:new W(19),t:new W(15e3),k:new N(1<<16),g:new N(1<<15)}}();\\n (function(){var N=H.H.m,W=1<<15;for(var R=0;R>>1|(V&1431655765)<<1;\\n V=(V&3435973836)>>>2|(V&858993459)<<2;V=(V&4042322160)>>>4|(V&252645135)<<4;V=(V&4278255360)>>>8|(V&16711935)<<8;\\n N.r[R]=(V>>>16|V<<16)>>>17}function n(A,l,M){while(l--!=0)A.push(0,M)}for(var R=0;R<32;R++){N.q[R]=N.S[R]<<3|N.T[R];\\n N.c[R]=N.p[R]<<4|N.z[R]}n(N._,144,8);n(N._,255-143,9);n(N._,279-255,7);n(N._,287-279,8);H.H.n(N._,9);\\n H.H.A(N._,9,N.J);H.H.l(N._,9);n(N.$,32,5);H.H.n(N.$,5);H.H.A(N.$,5,N.h);H.H.l(N.$,5);n(N.Q,19,0);n(N.C,286,0);\\n n(N.D,30,0);n(N.v,320,0)}());return H.H.N}()\\n \\n const UZIP = {}\\n UZIP[\"parse\"] = ').concat(UZIP_1.parse,\"\\n UZIP._readLocal = \").concat(UZIP_1._readLocal,\"\\n UZIP.inflateRaw = \").concat(UZIP_1.inflateRaw,\"\\n UZIP.inflate = \").concat(UZIP_1.inflate,\"\\n UZIP.deflate = \").concat(UZIP_1.deflate,\"\\n UZIP.deflateRaw = \").concat(UZIP_1.deflateRaw,\"\\n UZIP.encode = \").concat(UZIP_1.encode,\"\\n UZIP._noNeed = \").concat(UZIP_1._noNeed,\"\\n UZIP._writeHeader = \").concat(UZIP_1._writeHeader,\"\\n UZIP.crc = parse(\").concat(stringify(UZIP_1.crc),\")\\n UZIP.crc.table = ( function() {\\n var tab = new Uint32Array(256);\\n for (var n=0; n<256; n++) {\\n var c = n;\\n for (var k=0; k<8; k++) {\\n if (c & 1) c = 0xedb88320 ^ (c >>> 1);\\n else c = c >>> 1;\\n }\\n tab[n] = c; }\\n return tab; })()\\n \\n UZIP.adler = \").concat(UZIP_1.adler,\"\\n UZIP.bin = parse(\").concat(stringify(UZIP_1.bin),\")\\n UZIP.F = {}\\n UZIP.F.deflateRaw = \").concat(UZIP_1.F.deflateRaw,\"\\n UZIP.F._bestMatch = \").concat(UZIP_1.F._bestMatch,\"\\n UZIP.F._howLong = \").concat(UZIP_1.F._howLong,\"\\n UZIP.F._hash = \").concat(UZIP_1.F._hash,\"\\n UZIP.saved = \").concat(UZIP_1.saved,\"\\n UZIP.F._writeBlock = \").concat(UZIP_1.F._writeBlock,\"\\n UZIP.F._copyExact = \").concat(UZIP_1.F._copyExact,\"\\n UZIP.F.getTrees = \").concat(UZIP_1.F.getTrees,\"\\n UZIP.F.getSecond = \").concat(UZIP_1.F.getSecond,\"\\n UZIP.F.nonZero = \").concat(UZIP_1.F.nonZero,\"\\n UZIP.F.contSize = \").concat(UZIP_1.F.contSize,\"\\n UZIP.F._codeTiny = \").concat(UZIP_1.F._codeTiny,\" \\n UZIP.F._lenCodes = \").concat(UZIP_1.F._lenCodes,\" \\n UZIP.F._hufTree = \").concat(UZIP_1.F._hufTree,\" \\n UZIP.F.setDepth = \").concat(UZIP_1.F.setDepth,\" \\n UZIP.F.restrictDepth = \").concat(UZIP_1.F.restrictDepth,\"\\n UZIP.F._goodIndex = \").concat(UZIP_1.F._goodIndex,\" \\n UZIP.F._writeLit = \").concat(UZIP_1.F._writeLit,\" \\n UZIP.F.inflate = \").concat(UZIP_1.F.inflate,\" \\n UZIP.F._check = \").concat(UZIP_1.F._check,\" \\n UZIP.F._decodeTiny = \").concat(UZIP_1.F._decodeTiny,\" \\n UZIP.F._copyOut = \").concat(UZIP_1.F._copyOut,\" \\n UZIP.F.makeCodes = \").concat(UZIP_1.F.makeCodes,\" \\n UZIP.F.codes2map = \").concat(UZIP_1.F.codes2map,\" \\n UZIP.F.revCodes = \").concat(UZIP_1.F.revCodes,\" \\n\\n // used only in deflate\\n UZIP.F._putsE = \").concat(UZIP_1.F._putsE,\"\\n UZIP.F._putsF = \").concat(UZIP_1.F._putsF,\"\\n \\n UZIP.F._bitsE = \").concat(UZIP_1.F._bitsE,\"\\n UZIP.F._bitsF = \").concat(UZIP_1.F._bitsF,\"\\n\\n UZIP.F._get17 = \").concat(UZIP_1.F._get17,\"\\n UZIP.F._get25 = \").concat(UZIP_1.F._get25,\"\\n UZIP.F.U = function(){\\n var u16=Uint16Array, u32=Uint32Array;\\n return {\\n next_code : new u16(16),\\n bl_count : new u16(16),\\n ordr : [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ],\\n of0 : [3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,999,999,999],\\n exb : [0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 0, 0, 0],\\n ldef : new u16(32),\\n df0 : [1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 65535, 65535],\\n dxb : [0,0,0,0,1,1,2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 0, 0],\\n ddef : new u32(32),\\n flmap: new u16( 512), fltree: [],\\n fdmap: new u16( 32), fdtree: [],\\n lmap : new u16(32768), ltree : [], ttree:[],\\n dmap : new u16(32768), dtree : [],\\n imap : new u16( 512), itree : [],\\n //rev9 : new u16( 512)\\n rev15: new u16(1<<15),\\n lhst : new u32(286), dhst : new u32( 30), ihst : new u32(19),\\n lits : new u32(15000),\\n strt : new u16(1<<16),\\n prev : new u16(1<<15)\\n };\\n } ();\\n\\n (function(){\\n var U = UZIP.F.U;\\n var len = 1<<15;\\n for(var i=0; i>> 1) | ((x & 0x55555555) << 1));\\n x = (((x & 0xcccccccc) >>> 2) | ((x & 0x33333333) << 2));\\n x = (((x & 0xf0f0f0f0) >>> 4) | ((x & 0x0f0f0f0f) << 4));\\n x = (((x & 0xff00ff00) >>> 8) | ((x & 0x00ff00ff) << 8));\\n U.rev15[i] = (((x >>> 16) | (x << 16)))>>>17;\\n }\\n \\n function pushV(tgt, n, sv) { while(n--!=0) tgt.push(0,sv); }\\n \\n for(var i=0; i<32; i++) { U.ldef[i]=(U.of0[i]<<3)|U.exb[i]; U.ddef[i]=(U.df0[i]<<4)|U.dxb[i]; }\\n \\n pushV(U.fltree, 144, 8); pushV(U.fltree, 255-143, 9); pushV(U.fltree, 279-255, 7); pushV(U.fltree,287-279,8);\\n /*\\n var i = 0;\\n for(; i<=143; i++) U.fltree.push(0,8);\\n for(; i<=255; i++) U.fltree.push(0,9);\\n for(; i<=279; i++) U.fltree.push(0,7);\\n for(; i<=287; i++) U.fltree.push(0,8);\\n */\\n UZIP.F.makeCodes(U.fltree, 9);\\n UZIP.F.codes2map(U.fltree, 9, U.flmap);\\n UZIP.F.revCodes (U.fltree, 9)\\n \\n pushV(U.fdtree,32,5);\\n //for(i=0;i<32; i++) U.fdtree.push(0,5);\\n UZIP.F.makeCodes(U.fdtree, 5);\\n UZIP.F.codes2map(U.fdtree, 5, U.fdmap);\\n UZIP.F.revCodes (U.fdtree, 5)\\n \\n pushV(U.itree,19,0); pushV(U.ltree,286,0); pushV(U.dtree,30,0); pushV(U.ttree,320,0);\\n /*\\n for(var i=0; i< 19; i++) U.itree.push(0,0);\\n for(var i=0; i<286; i++) U.ltree.push(0,0);\\n for(var i=0; i< 30; i++) U.dtree.push(0,0);\\n for(var i=0; i<320; i++) U.ttree.push(0,0);\\n */\\n })()\\n \"))}function generateWorkerScript(){return createWorker(\"\\n let scriptImported = false\\n self.addEventListener('message', async (e) => {\\n const { file, id, imageCompressionLibUrl, options } = e.data\\n options.onProgress = (progress) => self.postMessage({ progress, id })\\n try {\\n if (!scriptImported) {\\n // console.log('[worker] importScripts', imageCompressionLibUrl)\\n self.importScripts(imageCompressionLibUrl)\\n scriptImported = true\\n }\\n // console.log('[worker] self', self)\\n const compressedFile = await imageCompression(file, options)\\n self.postMessage({ file: compressedFile, id })\\n } catch (e) {\\n // console.error('[worker] error', e)\\n self.postMessage({ error: e.message + '\\\\n' + e.stack, id })\\n }\\n })\\n \")}function compressOnWebWorker(e,r){return new Promise((function(t,a){var i=cnt+=1;imageCompressionLibUrl||(imageCompressionLibUrl=generateLib()),worker||(worker=generateWorkerScript()),worker.addEventListener(\"message\",(function handler(e){if(e.data.id===i){if(r.signal&&r.signal.aborted)return;if(void 0!==e.data.progress)return void r.onProgress(e.data.progress);worker.removeEventListener(\"message\",handler),e.data.error&&a(new Error(e.data.error)),t(e.data.file)}})),worker.addEventListener(\"error\",a),r.signal&&r.signal.addEventListener(\"abort\",(function(){worker.terminate(),a(r.signal.reason)})),worker.postMessage({file:e,id:i,imageCompressionLibUrl:imageCompressionLibUrl,options:_objectSpread2(_objectSpread2({},r),{},{onProgress:void 0,signal:void 0})})}))}function imageCompression(e,r){return new Promise((function(t,a){var i,s,c,f,l,u;if(i=_objectSpread2({},r),c=0,f=i.onProgress,i.maxSizeMB=i.maxSizeMB||Number.POSITIVE_INFINITY,l=\"boolean\"!=typeof i.useWebWorker||i.useWebWorker,delete i.useWebWorker,i.onProgress=function(e){c=e,\"function\"==typeof f&&f(c)},!(e instanceof Blob||e instanceof CustomFile))return a(new Error(\"The file given is not an instance of Blob or File\"));if(!/^image/.test(e.type))return a(new Error(\"The file given is not an image\"));if(u=\"undefined\"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope,!l||\"function\"!=typeof Worker||u)return compress(e,i).then(function(e){try{return s=e,$If_3.call(this)}catch(e){return a(e)}}.bind(this),a);var d=function(){try{return $If_3.call(this)}catch(e){return a(e)}}.bind(this),h=function $Try_1_Catch(r){try{return compress(e,i).then((function(e){try{return s=e,d()}catch(e){return a(e)}}),a)}catch(e){return a(e)}};try{return compressOnWebWorker(e,i).then((function(e){try{return s=e,d()}catch(e){return h()}}),h)}catch(e){h()}function $If_3(){try{s.name=e.name,s.lastModified=e.lastModified}catch(e){}return t(s)}}))}imageCompression.getDataUrlFromFile=getDataUrlFromFile,imageCompression.getFilefromDataUrl=getFilefromDataUrl,imageCompression.loadImage=loadImage,imageCompression.drawImageInCanvas=drawImageInCanvas,imageCompression.drawFileInCanvas=drawFileInCanvas,imageCompression.canvasToFile=canvasToFile,imageCompression.getExifOrientation=getExifOrientation,imageCompression.handleMaxWidthOrHeight=handleMaxWidthOrHeight,imageCompression.followExifOrientation=followExifOrientation,imageCompression.cleanupCanvasMemory=cleanupCanvasMemory,imageCompression.isAutoOrientationInBrowser=isAutoOrientationInBrowser,imageCompression.approximateBelowMaximumCanvasSizeOfBrowser=approximateBelowMaximumCanvasSizeOfBrowser,imageCompression.getBrowserName=getBrowserName,imageCompression.version=\"2.0.0\";export{imageCompression as default};\n//# sourceMappingURL=browser-image-compression.mjs.map\n","export default function _objectWithoutPropertiesLoose(source, excluded) {\n if (source == null) return {};\n var target = {};\n var sourceKeys = Object.keys(source);\n var key, i;\n\n for (i = 0; i < sourceKeys.length; i++) {\n key = sourceKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n target[key] = source[key];\n }\n\n return target;\n}","export default function _setPrototypeOf(o, p) {\n _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {\n o.__proto__ = p;\n return o;\n };\n return _setPrototypeOf(o, p);\n}","import setPrototypeOf from \"./setPrototypeOf.js\";\nexport default function _inheritsLoose(subClass, superClass) {\n subClass.prototype = Object.create(superClass.prototype);\n subClass.prototype.constructor = subClass;\n setPrototypeOf(subClass, superClass);\n}","/**\n * Checks if a given element has a CSS class.\n * \n * @param element the element\n * @param className the CSS class name\n */\nexport default function hasClass(element, className) {\n if (element.classList) return !!className && element.classList.contains(className);\n return (\" \" + (element.className.baseVal || element.className) + \" \").indexOf(\" \" + className + \" \") !== -1;\n}","import hasClass from './hasClass';\n/**\n * Adds a CSS class to a given element.\n * \n * @param element the element\n * @param className the CSS class name\n */\n\nexport default function addClass(element, className) {\n if (element.classList) element.classList.add(className);else if (!hasClass(element, className)) if (typeof element.className === 'string') element.className = element.className + \" \" + className;else element.setAttribute('class', (element.className && element.className.baseVal || '') + \" \" + className);\n}","function replaceClassName(origClass, classToRemove) {\n return origClass.replace(new RegExp(\"(^|\\\\s)\" + classToRemove + \"(?:\\\\s|$)\", 'g'), '$1').replace(/\\s+/g, ' ').replace(/^\\s*|\\s*$/g, '');\n}\n/**\n * Removes a CSS class from a given element.\n * \n * @param element the element\n * @param className the CSS class name\n */\n\n\nexport default function removeClass(element, className) {\n if (element.classList) {\n element.classList.remove(className);\n } else if (typeof element.className === 'string') {\n element.className = replaceClassName(element.className, className);\n } else {\n element.setAttribute('class', replaceClassName(element.className && element.className.baseVal || '', className));\n }\n}","export default {\n disabled: false\n};","import React from 'react';\nexport default React.createContext(null);","import _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport _inheritsLoose from \"@babel/runtime/helpers/esm/inheritsLoose\";\nimport PropTypes from 'prop-types';\nimport React from 'react';\nimport ReactDOM from 'react-dom';\nimport config from './config';\nimport { timeoutsShape } from './utils/PropTypes';\nimport TransitionGroupContext from './TransitionGroupContext';\nexport var UNMOUNTED = 'unmounted';\nexport var EXITED = 'exited';\nexport var ENTERING = 'entering';\nexport var ENTERED = 'entered';\nexport var EXITING = 'exiting';\n/**\n * The Transition component lets you describe a transition from one component\n * state to another _over time_ with a simple declarative API. Most commonly\n * it's used to animate the mounting and unmounting of a component, but can also\n * be used to describe in-place transition states as well.\n *\n * ---\n *\n * **Note**: `Transition` is a platform-agnostic base component. If you're using\n * transitions in CSS, you'll probably want to use\n * [`CSSTransition`](https://reactcommunity.org/react-transition-group/css-transition)\n * instead. It inherits all the features of `Transition`, but contains\n * additional features necessary to play nice with CSS transitions (hence the\n * name of the component).\n *\n * ---\n *\n * By default the `Transition` component does not alter the behavior of the\n * component it renders, it only tracks \"enter\" and \"exit\" states for the\n * components. It's up to you to give meaning and effect to those states. For\n * example we can add styles to a component when it enters or exits:\n *\n * ```jsx\n * import { Transition } from 'react-transition-group';\n *\n * const duration = 300;\n *\n * const defaultStyle = {\n * transition: `opacity ${duration}ms ease-in-out`,\n * opacity: 0,\n * }\n *\n * const transitionStyles = {\n * entering: { opacity: 1 },\n * entered: { opacity: 1 },\n * exiting: { opacity: 0 },\n * exited: { opacity: 0 },\n * };\n *\n * const Fade = ({ in: inProp }) => (\n * \n * {state => (\n *
\n * I'm a fade Transition!\n *
\n * )}\n *
\n * );\n * ```\n *\n * There are 4 main states a Transition can be in:\n * - `'entering'`\n * - `'entered'`\n * - `'exiting'`\n * - `'exited'`\n *\n * Transition state is toggled via the `in` prop. When `true` the component\n * begins the \"Enter\" stage. During this stage, the component will shift from\n * its current transition state, to `'entering'` for the duration of the\n * transition and then to the `'entered'` stage once it's complete. Let's take\n * the following example (we'll use the\n * [useState](https://reactjs.org/docs/hooks-reference.html#usestate) hook):\n *\n * ```jsx\n * function App() {\n * const [inProp, setInProp] = useState(false);\n * return (\n *
\n * \n * {state => (\n * // ...\n * )}\n * \n * \n *
\n * );\n * }\n * ```\n *\n * When the button is clicked the component will shift to the `'entering'` state\n * and stay there for 500ms (the value of `timeout`) before it finally switches\n * to `'entered'`.\n *\n * When `in` is `false` the same thing happens except the state moves from\n * `'exiting'` to `'exited'`.\n */\n\nvar Transition = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(Transition, _React$Component);\n\n function Transition(props, context) {\n var _this;\n\n _this = _React$Component.call(this, props, context) || this;\n var parentGroup = context; // In the context of a TransitionGroup all enters are really appears\n\n var appear = parentGroup && !parentGroup.isMounting ? props.enter : props.appear;\n var initialStatus;\n _this.appearStatus = null;\n\n if (props.in) {\n if (appear) {\n initialStatus = EXITED;\n _this.appearStatus = ENTERING;\n } else {\n initialStatus = ENTERED;\n }\n } else {\n if (props.unmountOnExit || props.mountOnEnter) {\n initialStatus = UNMOUNTED;\n } else {\n initialStatus = EXITED;\n }\n }\n\n _this.state = {\n status: initialStatus\n };\n _this.nextCallback = null;\n return _this;\n }\n\n Transition.getDerivedStateFromProps = function getDerivedStateFromProps(_ref, prevState) {\n var nextIn = _ref.in;\n\n if (nextIn && prevState.status === UNMOUNTED) {\n return {\n status: EXITED\n };\n }\n\n return null;\n } // getSnapshotBeforeUpdate(prevProps) {\n // let nextStatus = null\n // if (prevProps !== this.props) {\n // const { status } = this.state\n // if (this.props.in) {\n // if (status !== ENTERING && status !== ENTERED) {\n // nextStatus = ENTERING\n // }\n // } else {\n // if (status === ENTERING || status === ENTERED) {\n // nextStatus = EXITING\n // }\n // }\n // }\n // return { nextStatus }\n // }\n ;\n\n var _proto = Transition.prototype;\n\n _proto.componentDidMount = function componentDidMount() {\n this.updateStatus(true, this.appearStatus);\n };\n\n _proto.componentDidUpdate = function componentDidUpdate(prevProps) {\n var nextStatus = null;\n\n if (prevProps !== this.props) {\n var status = this.state.status;\n\n if (this.props.in) {\n if (status !== ENTERING && status !== ENTERED) {\n nextStatus = ENTERING;\n }\n } else {\n if (status === ENTERING || status === ENTERED) {\n nextStatus = EXITING;\n }\n }\n }\n\n this.updateStatus(false, nextStatus);\n };\n\n _proto.componentWillUnmount = function componentWillUnmount() {\n this.cancelNextCallback();\n };\n\n _proto.getTimeouts = function getTimeouts() {\n var timeout = this.props.timeout;\n var exit, enter, appear;\n exit = enter = appear = timeout;\n\n if (timeout != null && typeof timeout !== 'number') {\n exit = timeout.exit;\n enter = timeout.enter; // TODO: remove fallback for next major\n\n appear = timeout.appear !== undefined ? timeout.appear : enter;\n }\n\n return {\n exit: exit,\n enter: enter,\n appear: appear\n };\n };\n\n _proto.updateStatus = function updateStatus(mounting, nextStatus) {\n if (mounting === void 0) {\n mounting = false;\n }\n\n if (nextStatus !== null) {\n // nextStatus will always be ENTERING or EXITING.\n this.cancelNextCallback();\n\n if (nextStatus === ENTERING) {\n this.performEnter(mounting);\n } else {\n this.performExit();\n }\n } else if (this.props.unmountOnExit && this.state.status === EXITED) {\n this.setState({\n status: UNMOUNTED\n });\n }\n };\n\n _proto.performEnter = function performEnter(mounting) {\n var _this2 = this;\n\n var enter = this.props.enter;\n var appearing = this.context ? this.context.isMounting : mounting;\n\n var _ref2 = this.props.nodeRef ? [appearing] : [ReactDOM.findDOMNode(this), appearing],\n maybeNode = _ref2[0],\n maybeAppearing = _ref2[1];\n\n var timeouts = this.getTimeouts();\n var enterTimeout = appearing ? timeouts.appear : timeouts.enter; // no enter animation skip right to ENTERED\n // if we are mounting and running this it means appear _must_ be set\n\n if (!mounting && !enter || config.disabled) {\n this.safeSetState({\n status: ENTERED\n }, function () {\n _this2.props.onEntered(maybeNode);\n });\n return;\n }\n\n this.props.onEnter(maybeNode, maybeAppearing);\n this.safeSetState({\n status: ENTERING\n }, function () {\n _this2.props.onEntering(maybeNode, maybeAppearing);\n\n _this2.onTransitionEnd(enterTimeout, function () {\n _this2.safeSetState({\n status: ENTERED\n }, function () {\n _this2.props.onEntered(maybeNode, maybeAppearing);\n });\n });\n });\n };\n\n _proto.performExit = function performExit() {\n var _this3 = this;\n\n var exit = this.props.exit;\n var timeouts = this.getTimeouts();\n var maybeNode = this.props.nodeRef ? undefined : ReactDOM.findDOMNode(this); // no exit animation skip right to EXITED\n\n if (!exit || config.disabled) {\n this.safeSetState({\n status: EXITED\n }, function () {\n _this3.props.onExited(maybeNode);\n });\n return;\n }\n\n this.props.onExit(maybeNode);\n this.safeSetState({\n status: EXITING\n }, function () {\n _this3.props.onExiting(maybeNode);\n\n _this3.onTransitionEnd(timeouts.exit, function () {\n _this3.safeSetState({\n status: EXITED\n }, function () {\n _this3.props.onExited(maybeNode);\n });\n });\n });\n };\n\n _proto.cancelNextCallback = function cancelNextCallback() {\n if (this.nextCallback !== null) {\n this.nextCallback.cancel();\n this.nextCallback = null;\n }\n };\n\n _proto.safeSetState = function safeSetState(nextState, callback) {\n // This shouldn't be necessary, but there are weird race conditions with\n // setState callbacks and unmounting in testing, so always make sure that\n // we can cancel any pending setState callbacks after we unmount.\n callback = this.setNextCallback(callback);\n this.setState(nextState, callback);\n };\n\n _proto.setNextCallback = function setNextCallback(callback) {\n var _this4 = this;\n\n var active = true;\n\n this.nextCallback = function (event) {\n if (active) {\n active = false;\n _this4.nextCallback = null;\n callback(event);\n }\n };\n\n this.nextCallback.cancel = function () {\n active = false;\n };\n\n return this.nextCallback;\n };\n\n _proto.onTransitionEnd = function onTransitionEnd(timeout, handler) {\n this.setNextCallback(handler);\n var node = this.props.nodeRef ? this.props.nodeRef.current : ReactDOM.findDOMNode(this);\n var doesNotHaveTimeoutOrListener = timeout == null && !this.props.addEndListener;\n\n if (!node || doesNotHaveTimeoutOrListener) {\n setTimeout(this.nextCallback, 0);\n return;\n }\n\n if (this.props.addEndListener) {\n var _ref3 = this.props.nodeRef ? [this.nextCallback] : [node, this.nextCallback],\n maybeNode = _ref3[0],\n maybeNextCallback = _ref3[1];\n\n this.props.addEndListener(maybeNode, maybeNextCallback);\n }\n\n if (timeout != null) {\n setTimeout(this.nextCallback, timeout);\n }\n };\n\n _proto.render = function render() {\n var status = this.state.status;\n\n if (status === UNMOUNTED) {\n return null;\n }\n\n var _this$props = this.props,\n children = _this$props.children,\n _in = _this$props.in,\n _mountOnEnter = _this$props.mountOnEnter,\n _unmountOnExit = _this$props.unmountOnExit,\n _appear = _this$props.appear,\n _enter = _this$props.enter,\n _exit = _this$props.exit,\n _timeout = _this$props.timeout,\n _addEndListener = _this$props.addEndListener,\n _onEnter = _this$props.onEnter,\n _onEntering = _this$props.onEntering,\n _onEntered = _this$props.onEntered,\n _onExit = _this$props.onExit,\n _onExiting = _this$props.onExiting,\n _onExited = _this$props.onExited,\n _nodeRef = _this$props.nodeRef,\n childProps = _objectWithoutPropertiesLoose(_this$props, [\"children\", \"in\", \"mountOnEnter\", \"unmountOnExit\", \"appear\", \"enter\", \"exit\", \"timeout\", \"addEndListener\", \"onEnter\", \"onEntering\", \"onEntered\", \"onExit\", \"onExiting\", \"onExited\", \"nodeRef\"]);\n\n return (\n /*#__PURE__*/\n // allows for nested Transitions\n React.createElement(TransitionGroupContext.Provider, {\n value: null\n }, typeof children === 'function' ? children(status, childProps) : React.cloneElement(React.Children.only(children), childProps))\n );\n };\n\n return Transition;\n}(React.Component);\n\nTransition.contextType = TransitionGroupContext;\nTransition.propTypes = process.env.NODE_ENV !== \"production\" ? {\n /**\n * A React reference to DOM element that need to transition:\n * https://stackoverflow.com/a/51127130/4671932\n *\n * - When `nodeRef` prop is used, `node` is not passed to callback functions\n * (e.g. `onEnter`) because user already has direct access to the node.\n * - When changing `key` prop of `Transition` in a `TransitionGroup` a new\n * `nodeRef` need to be provided to `Transition` with changed `key` prop\n * (see\n * [test/CSSTransition-test.js](https://github.com/reactjs/react-transition-group/blob/13435f897b3ab71f6e19d724f145596f5910581c/test/CSSTransition-test.js#L362-L437)).\n */\n nodeRef: PropTypes.shape({\n current: typeof Element === 'undefined' ? PropTypes.any : PropTypes.instanceOf(Element)\n }),\n\n /**\n * A `function` child can be used instead of a React element. This function is\n * called with the current transition status (`'entering'`, `'entered'`,\n * `'exiting'`, `'exited'`), which can be used to apply context\n * specific props to a component.\n *\n * ```jsx\n * \n * {state => (\n * \n * )}\n * \n * ```\n */\n children: PropTypes.oneOfType([PropTypes.func.isRequired, PropTypes.element.isRequired]).isRequired,\n\n /**\n * Show the component; triggers the enter or exit states\n */\n in: PropTypes.bool,\n\n /**\n * By default the child component is mounted immediately along with\n * the parent `Transition` component. If you want to \"lazy mount\" the component on the\n * first `in={true}` you can set `mountOnEnter`. After the first enter transition the component will stay\n * mounted, even on \"exited\", unless you also specify `unmountOnExit`.\n */\n mountOnEnter: PropTypes.bool,\n\n /**\n * By default the child component stays mounted after it reaches the `'exited'` state.\n * Set `unmountOnExit` if you'd prefer to unmount the component after it finishes exiting.\n */\n unmountOnExit: PropTypes.bool,\n\n /**\n * By default the child component does not perform the enter transition when\n * it first mounts, regardless of the value of `in`. If you want this\n * behavior, set both `appear` and `in` to `true`.\n *\n * > **Note**: there are no special appear states like `appearing`/`appeared`, this prop\n * > only adds an additional enter transition. However, in the\n * > `` component that first enter transition does result in\n * > additional `.appear-*` classes, that way you can choose to style it\n * > differently.\n */\n appear: PropTypes.bool,\n\n /**\n * Enable or disable enter transitions.\n */\n enter: PropTypes.bool,\n\n /**\n * Enable or disable exit transitions.\n */\n exit: PropTypes.bool,\n\n /**\n * The duration of the transition, in milliseconds.\n * Required unless `addEndListener` is provided.\n *\n * You may specify a single timeout for all transitions:\n *\n * ```jsx\n * timeout={500}\n * ```\n *\n * or individually:\n *\n * ```jsx\n * timeout={{\n * appear: 500,\n * enter: 300,\n * exit: 500,\n * }}\n * ```\n *\n * - `appear` defaults to the value of `enter`\n * - `enter` defaults to `0`\n * - `exit` defaults to `0`\n *\n * @type {number | { enter?: number, exit?: number, appear?: number }}\n */\n timeout: function timeout(props) {\n var pt = timeoutsShape;\n if (!props.addEndListener) pt = pt.isRequired;\n\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n return pt.apply(void 0, [props].concat(args));\n },\n\n /**\n * Add a custom transition end trigger. Called with the transitioning\n * DOM node and a `done` callback. Allows for more fine grained transition end\n * logic. Timeouts are still used as a fallback if provided.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * ```jsx\n * addEndListener={(node, done) => {\n * // use the css transitionend event to mark the finish of a transition\n * node.addEventListener('transitionend', done, false);\n * }}\n * ```\n */\n addEndListener: PropTypes.func,\n\n /**\n * Callback fired before the \"entering\" status is applied. An extra parameter\n * `isAppearing` is supplied to indicate if the enter stage is occurring on the initial mount\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool) -> void\n */\n onEnter: PropTypes.func,\n\n /**\n * Callback fired after the \"entering\" status is applied. An extra parameter\n * `isAppearing` is supplied to indicate if the enter stage is occurring on the initial mount\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool)\n */\n onEntering: PropTypes.func,\n\n /**\n * Callback fired after the \"entered\" status is applied. An extra parameter\n * `isAppearing` is supplied to indicate if the enter stage is occurring on the initial mount\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool) -> void\n */\n onEntered: PropTypes.func,\n\n /**\n * Callback fired before the \"exiting\" status is applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement) -> void\n */\n onExit: PropTypes.func,\n\n /**\n * Callback fired after the \"exiting\" status is applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement) -> void\n */\n onExiting: PropTypes.func,\n\n /**\n * Callback fired after the \"exited\" status is applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed\n *\n * @type Function(node: HtmlElement) -> void\n */\n onExited: PropTypes.func\n} : {}; // Name the function so it is clearer in the documentation\n\nfunction noop() {}\n\nTransition.defaultProps = {\n in: false,\n mountOnEnter: false,\n unmountOnExit: false,\n appear: false,\n enter: true,\n exit: true,\n onEnter: noop,\n onEntering: noop,\n onEntered: noop,\n onExit: noop,\n onExiting: noop,\n onExited: noop\n};\nTransition.UNMOUNTED = UNMOUNTED;\nTransition.EXITED = EXITED;\nTransition.ENTERING = ENTERING;\nTransition.ENTERED = ENTERED;\nTransition.EXITING = EXITING;\nexport default Transition;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport _inheritsLoose from \"@babel/runtime/helpers/esm/inheritsLoose\";\nimport PropTypes from 'prop-types';\nimport addOneClass from 'dom-helpers/addClass';\nimport removeOneClass from 'dom-helpers/removeClass';\nimport React from 'react';\nimport Transition from './Transition';\nimport { classNamesShape } from './utils/PropTypes';\n\nvar _addClass = function addClass(node, classes) {\n return node && classes && classes.split(' ').forEach(function (c) {\n return addOneClass(node, c);\n });\n};\n\nvar removeClass = function removeClass(node, classes) {\n return node && classes && classes.split(' ').forEach(function (c) {\n return removeOneClass(node, c);\n });\n};\n/**\n * A transition component inspired by the excellent\n * [ng-animate](https://docs.angularjs.org/api/ngAnimate) library, you should\n * use it if you're using CSS transitions or animations. It's built upon the\n * [`Transition`](https://reactcommunity.org/react-transition-group/transition)\n * component, so it inherits all of its props.\n *\n * `CSSTransition` applies a pair of class names during the `appear`, `enter`,\n * and `exit` states of the transition. The first class is applied and then a\n * second `*-active` class in order to activate the CSS transition. After the\n * transition, matching `*-done` class names are applied to persist the\n * transition state.\n *\n * ```jsx\n * function App() {\n * const [inProp, setInProp] = useState(false);\n * return (\n *
\n * \n *
\n * {\"I'll receive my-node-* classes\"}\n *
\n *
\n * \n *
\n * );\n * }\n * ```\n *\n * When the `in` prop is set to `true`, the child component will first receive\n * the class `example-enter`, then the `example-enter-active` will be added in\n * the next tick. `CSSTransition` [forces a\n * reflow](https://github.com/reactjs/react-transition-group/blob/5007303e729a74be66a21c3e2205e4916821524b/src/CSSTransition.js#L208-L215)\n * between before adding the `example-enter-active`. This is an important trick\n * because it allows us to transition between `example-enter` and\n * `example-enter-active` even though they were added immediately one after\n * another. Most notably, this is what makes it possible for us to animate\n * _appearance_.\n *\n * ```css\n * .my-node-enter {\n * opacity: 0;\n * }\n * .my-node-enter-active {\n * opacity: 1;\n * transition: opacity 200ms;\n * }\n * .my-node-exit {\n * opacity: 1;\n * }\n * .my-node-exit-active {\n * opacity: 0;\n * transition: opacity 200ms;\n * }\n * ```\n *\n * `*-active` classes represent which styles you want to animate **to**, so it's\n * important to add `transition` declaration only to them, otherwise transitions\n * might not behave as intended! This might not be obvious when the transitions\n * are symmetrical, i.e. when `*-enter-active` is the same as `*-exit`, like in\n * the example above (minus `transition`), but it becomes apparent in more\n * complex transitions.\n *\n * **Note**: If you're using the\n * [`appear`](http://reactcommunity.org/react-transition-group/transition#Transition-prop-appear)\n * prop, make sure to define styles for `.appear-*` classes as well.\n */\n\n\nvar CSSTransition = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(CSSTransition, _React$Component);\n\n function CSSTransition() {\n var _this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;\n _this.appliedClasses = {\n appear: {},\n enter: {},\n exit: {}\n };\n\n _this.onEnter = function (maybeNode, maybeAppearing) {\n var _this$resolveArgument = _this.resolveArguments(maybeNode, maybeAppearing),\n node = _this$resolveArgument[0],\n appearing = _this$resolveArgument[1];\n\n _this.removeClasses(node, 'exit');\n\n _this.addClass(node, appearing ? 'appear' : 'enter', 'base');\n\n if (_this.props.onEnter) {\n _this.props.onEnter(maybeNode, maybeAppearing);\n }\n };\n\n _this.onEntering = function (maybeNode, maybeAppearing) {\n var _this$resolveArgument2 = _this.resolveArguments(maybeNode, maybeAppearing),\n node = _this$resolveArgument2[0],\n appearing = _this$resolveArgument2[1];\n\n var type = appearing ? 'appear' : 'enter';\n\n _this.addClass(node, type, 'active');\n\n if (_this.props.onEntering) {\n _this.props.onEntering(maybeNode, maybeAppearing);\n }\n };\n\n _this.onEntered = function (maybeNode, maybeAppearing) {\n var _this$resolveArgument3 = _this.resolveArguments(maybeNode, maybeAppearing),\n node = _this$resolveArgument3[0],\n appearing = _this$resolveArgument3[1];\n\n var type = appearing ? 'appear' : 'enter';\n\n _this.removeClasses(node, type);\n\n _this.addClass(node, type, 'done');\n\n if (_this.props.onEntered) {\n _this.props.onEntered(maybeNode, maybeAppearing);\n }\n };\n\n _this.onExit = function (maybeNode) {\n var _this$resolveArgument4 = _this.resolveArguments(maybeNode),\n node = _this$resolveArgument4[0];\n\n _this.removeClasses(node, 'appear');\n\n _this.removeClasses(node, 'enter');\n\n _this.addClass(node, 'exit', 'base');\n\n if (_this.props.onExit) {\n _this.props.onExit(maybeNode);\n }\n };\n\n _this.onExiting = function (maybeNode) {\n var _this$resolveArgument5 = _this.resolveArguments(maybeNode),\n node = _this$resolveArgument5[0];\n\n _this.addClass(node, 'exit', 'active');\n\n if (_this.props.onExiting) {\n _this.props.onExiting(maybeNode);\n }\n };\n\n _this.onExited = function (maybeNode) {\n var _this$resolveArgument6 = _this.resolveArguments(maybeNode),\n node = _this$resolveArgument6[0];\n\n _this.removeClasses(node, 'exit');\n\n _this.addClass(node, 'exit', 'done');\n\n if (_this.props.onExited) {\n _this.props.onExited(maybeNode);\n }\n };\n\n _this.resolveArguments = function (maybeNode, maybeAppearing) {\n return _this.props.nodeRef ? [_this.props.nodeRef.current, maybeNode] // here `maybeNode` is actually `appearing`\n : [maybeNode, maybeAppearing];\n };\n\n _this.getClassNames = function (type) {\n var classNames = _this.props.classNames;\n var isStringClassNames = typeof classNames === 'string';\n var prefix = isStringClassNames && classNames ? classNames + \"-\" : '';\n var baseClassName = isStringClassNames ? \"\" + prefix + type : classNames[type];\n var activeClassName = isStringClassNames ? baseClassName + \"-active\" : classNames[type + \"Active\"];\n var doneClassName = isStringClassNames ? baseClassName + \"-done\" : classNames[type + \"Done\"];\n return {\n baseClassName: baseClassName,\n activeClassName: activeClassName,\n doneClassName: doneClassName\n };\n };\n\n return _this;\n }\n\n var _proto = CSSTransition.prototype;\n\n _proto.addClass = function addClass(node, type, phase) {\n var className = this.getClassNames(type)[phase + \"ClassName\"];\n\n var _this$getClassNames = this.getClassNames('enter'),\n doneClassName = _this$getClassNames.doneClassName;\n\n if (type === 'appear' && phase === 'done' && doneClassName) {\n className += \" \" + doneClassName;\n } // This is for to force a repaint,\n // which is necessary in order to transition styles when adding a class name.\n\n\n if (phase === 'active') {\n /* eslint-disable no-unused-expressions */\n node && node.scrollTop;\n }\n\n if (className) {\n this.appliedClasses[type][phase] = className;\n\n _addClass(node, className);\n }\n };\n\n _proto.removeClasses = function removeClasses(node, type) {\n var _this$appliedClasses$ = this.appliedClasses[type],\n baseClassName = _this$appliedClasses$.base,\n activeClassName = _this$appliedClasses$.active,\n doneClassName = _this$appliedClasses$.done;\n this.appliedClasses[type] = {};\n\n if (baseClassName) {\n removeClass(node, baseClassName);\n }\n\n if (activeClassName) {\n removeClass(node, activeClassName);\n }\n\n if (doneClassName) {\n removeClass(node, doneClassName);\n }\n };\n\n _proto.render = function render() {\n var _this$props = this.props,\n _ = _this$props.classNames,\n props = _objectWithoutPropertiesLoose(_this$props, [\"classNames\"]);\n\n return /*#__PURE__*/React.createElement(Transition, _extends({}, props, {\n onEnter: this.onEnter,\n onEntered: this.onEntered,\n onEntering: this.onEntering,\n onExit: this.onExit,\n onExiting: this.onExiting,\n onExited: this.onExited\n }));\n };\n\n return CSSTransition;\n}(React.Component);\n\nCSSTransition.defaultProps = {\n classNames: ''\n};\nCSSTransition.propTypes = process.env.NODE_ENV !== \"production\" ? _extends({}, Transition.propTypes, {\n /**\n * The animation classNames applied to the component as it appears, enters,\n * exits or has finished the transition. A single name can be provided, which\n * will be suffixed for each stage, e.g. `classNames=\"fade\"` applies:\n *\n * - `fade-appear`, `fade-appear-active`, `fade-appear-done`\n * - `fade-enter`, `fade-enter-active`, `fade-enter-done`\n * - `fade-exit`, `fade-exit-active`, `fade-exit-done`\n *\n * A few details to note about how these classes are applied:\n *\n * 1. They are _joined_ with the ones that are already defined on the child\n * component, so if you want to add some base styles, you can use\n * `className` without worrying that it will be overridden.\n *\n * 2. If the transition component mounts with `in={false}`, no classes are\n * applied yet. You might be expecting `*-exit-done`, but if you think\n * about it, a component cannot finish exiting if it hasn't entered yet.\n *\n * 2. `fade-appear-done` and `fade-enter-done` will _both_ be applied. This\n * allows you to define different behavior for when appearing is done and\n * when regular entering is done, using selectors like\n * `.fade-enter-done:not(.fade-appear-done)`. For example, you could apply\n * an epic entrance animation when element first appears in the DOM using\n * [Animate.css](https://daneden.github.io/animate.css/). Otherwise you can\n * simply use `fade-enter-done` for defining both cases.\n *\n * Each individual classNames can also be specified independently like:\n *\n * ```js\n * classNames={{\n * appear: 'my-appear',\n * appearActive: 'my-active-appear',\n * appearDone: 'my-done-appear',\n * enter: 'my-enter',\n * enterActive: 'my-active-enter',\n * enterDone: 'my-done-enter',\n * exit: 'my-exit',\n * exitActive: 'my-active-exit',\n * exitDone: 'my-done-exit',\n * }}\n * ```\n *\n * If you want to set these classes using CSS Modules:\n *\n * ```js\n * import styles from './styles.css';\n * ```\n *\n * you might want to use camelCase in your CSS file, that way could simply\n * spread them instead of listing them one by one:\n *\n * ```js\n * classNames={{ ...styles }}\n * ```\n *\n * @type {string | {\n * appear?: string,\n * appearActive?: string,\n * appearDone?: string,\n * enter?: string,\n * enterActive?: string,\n * enterDone?: string,\n * exit?: string,\n * exitActive?: string,\n * exitDone?: string,\n * }}\n */\n classNames: classNamesShape,\n\n /**\n * A `` callback fired immediately after the 'enter' or 'appear' class is\n * applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool)\n */\n onEnter: PropTypes.func,\n\n /**\n * A `` callback fired immediately after the 'enter-active' or\n * 'appear-active' class is applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool)\n */\n onEntering: PropTypes.func,\n\n /**\n * A `` callback fired immediately after the 'enter' or\n * 'appear' classes are **removed** and the `done` class is added to the DOM node.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed.\n *\n * @type Function(node: HtmlElement, isAppearing: bool)\n */\n onEntered: PropTypes.func,\n\n /**\n * A `` callback fired immediately after the 'exit' class is\n * applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed\n *\n * @type Function(node: HtmlElement)\n */\n onExit: PropTypes.func,\n\n /**\n * A `` callback fired immediately after the 'exit-active' is applied.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed\n *\n * @type Function(node: HtmlElement)\n */\n onExiting: PropTypes.func,\n\n /**\n * A `` callback fired immediately after the 'exit' classes\n * are **removed** and the `exit-done` class is added to the DOM node.\n *\n * **Note**: when `nodeRef` prop is passed, `node` is not passed\n *\n * @type Function(node: HtmlElement)\n */\n onExited: PropTypes.func\n}) : {};\nexport default CSSTransition;","export var COMMON_MIME_TYPES = new Map([\n // https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types\n ['aac', 'audio/aac'],\n ['abw', 'application/x-abiword'],\n ['arc', 'application/x-freearc'],\n ['avif', 'image/avif'],\n ['avi', 'video/x-msvideo'],\n ['azw', 'application/vnd.amazon.ebook'],\n ['bin', 'application/octet-stream'],\n ['bmp', 'image/bmp'],\n ['bz', 'application/x-bzip'],\n ['bz2', 'application/x-bzip2'],\n ['cda', 'application/x-cdf'],\n ['csh', 'application/x-csh'],\n ['css', 'text/css'],\n ['csv', 'text/csv'],\n ['doc', 'application/msword'],\n ['docx', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'],\n ['eot', 'application/vnd.ms-fontobject'],\n ['epub', 'application/epub+zip'],\n ['gz', 'application/gzip'],\n ['gif', 'image/gif'],\n ['heic', 'image/heic'],\n ['heif', 'image/heif'],\n ['htm', 'text/html'],\n ['html', 'text/html'],\n ['ico', 'image/vnd.microsoft.icon'],\n ['ics', 'text/calendar'],\n ['jar', 'application/java-archive'],\n ['jpeg', 'image/jpeg'],\n ['jpg', 'image/jpeg'],\n ['js', 'text/javascript'],\n ['json', 'application/json'],\n ['jsonld', 'application/ld+json'],\n ['mid', 'audio/midi'],\n ['midi', 'audio/midi'],\n ['mjs', 'text/javascript'],\n ['mp3', 'audio/mpeg'],\n ['mp4', 'video/mp4'],\n ['mpeg', 'video/mpeg'],\n ['mpkg', 'application/vnd.apple.installer+xml'],\n ['odp', 'application/vnd.oasis.opendocument.presentation'],\n ['ods', 'application/vnd.oasis.opendocument.spreadsheet'],\n ['odt', 'application/vnd.oasis.opendocument.text'],\n ['oga', 'audio/ogg'],\n ['ogv', 'video/ogg'],\n ['ogx', 'application/ogg'],\n ['opus', 'audio/opus'],\n ['otf', 'font/otf'],\n ['png', 'image/png'],\n ['pdf', 'application/pdf'],\n ['php', 'application/x-httpd-php'],\n ['ppt', 'application/vnd.ms-powerpoint'],\n ['pptx', 'application/vnd.openxmlformats-officedocument.presentationml.presentation'],\n ['rar', 'application/vnd.rar'],\n ['rtf', 'application/rtf'],\n ['sh', 'application/x-sh'],\n ['svg', 'image/svg+xml'],\n ['swf', 'application/x-shockwave-flash'],\n ['tar', 'application/x-tar'],\n ['tif', 'image/tiff'],\n ['tiff', 'image/tiff'],\n ['ts', 'video/mp2t'],\n ['ttf', 'font/ttf'],\n ['txt', 'text/plain'],\n ['vsd', 'application/vnd.visio'],\n ['wav', 'audio/wav'],\n ['weba', 'audio/webm'],\n ['webm', 'video/webm'],\n ['webp', 'image/webp'],\n ['woff', 'font/woff'],\n ['woff2', 'font/woff2'],\n ['xhtml', 'application/xhtml+xml'],\n ['xls', 'application/vnd.ms-excel'],\n ['xlsx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'],\n ['xml', 'application/xml'],\n ['xul', 'application/vnd.mozilla.xul+xml'],\n ['zip', 'application/zip'],\n ['7z', 'application/x-7z-compressed'],\n // Others\n ['mkv', 'video/x-matroska'],\n ['mov', 'video/quicktime'],\n ['msg', 'application/vnd.ms-outlook']\n]);\nexport function toFileWithPath(file, path) {\n var f = withMimeType(file);\n if (typeof f.path !== 'string') { // on electron, path is already set to the absolute path\n var webkitRelativePath = file.webkitRelativePath;\n Object.defineProperty(f, 'path', {\n value: typeof path === 'string'\n ? path\n // If is set,\n // the File will have a {webkitRelativePath} property\n // https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/webkitdirectory\n : typeof webkitRelativePath === 'string' && webkitRelativePath.length > 0\n ? webkitRelativePath\n : file.name,\n writable: false,\n configurable: false,\n enumerable: true\n });\n }\n return f;\n}\nfunction withMimeType(file) {\n var name = file.name;\n var hasExtension = name && name.lastIndexOf('.') !== -1;\n if (hasExtension && !file.type) {\n var ext = name.split('.')\n .pop().toLowerCase();\n var type = COMMON_MIME_TYPES.get(ext);\n if (type) {\n Object.defineProperty(file, 'type', {\n value: type,\n writable: false,\n configurable: false,\n enumerable: true\n });\n }\n }\n return file;\n}\n//# sourceMappingURL=file.js.map","import { __awaiter, __generator, __read, __spread } from \"tslib\";\nimport { toFileWithPath } from './file';\nvar FILES_TO_IGNORE = [\n // Thumbnail cache files for macOS and Windows\n '.DS_Store',\n 'Thumbs.db' // Windows\n];\n/**\n * Convert a DragEvent's DataTrasfer object to a list of File objects\n * NOTE: If some of the items are folders,\n * everything will be flattened and placed in the same list but the paths will be kept as a {path} property.\n *\n * EXPERIMENTAL: A list of https://developer.mozilla.org/en-US/docs/Web/API/FileSystemHandle objects can also be passed as an arg\n * and a list of File objects will be returned.\n *\n * @param evt\n */\nexport function fromEvent(evt) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n if (isObject(evt) && isDataTransfer(evt)) {\n return [2 /*return*/, getDataTransferFiles(evt.dataTransfer, evt.type)];\n }\n else if (isChangeEvt(evt)) {\n return [2 /*return*/, getInputFiles(evt)];\n }\n else if (Array.isArray(evt) && evt.every(function (item) { return 'getFile' in item && typeof item.getFile === 'function'; })) {\n return [2 /*return*/, getFsHandleFiles(evt)];\n }\n return [2 /*return*/, []];\n });\n });\n}\nfunction isDataTransfer(value) {\n return isObject(value.dataTransfer);\n}\nfunction isChangeEvt(value) {\n return isObject(value) && isObject(value.target);\n}\nfunction isObject(v) {\n return typeof v === 'object' && v !== null;\n}\nfunction getInputFiles(evt) {\n return fromList(evt.target.files).map(function (file) { return toFileWithPath(file); });\n}\n// Ee expect each handle to be https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle\nfunction getFsHandleFiles(handles) {\n return __awaiter(this, void 0, void 0, function () {\n var files;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0: return [4 /*yield*/, Promise.all(handles.map(function (h) { return h.getFile(); }))];\n case 1:\n files = _a.sent();\n return [2 /*return*/, files.map(function (file) { return toFileWithPath(file); })];\n }\n });\n });\n}\nfunction getDataTransferFiles(dt, type) {\n return __awaiter(this, void 0, void 0, function () {\n var items, files;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0:\n if (dt === null) {\n return [2 /*return*/, []];\n }\n if (!dt.items) return [3 /*break*/, 2];\n items = fromList(dt.items)\n .filter(function (item) { return item.kind === 'file'; });\n // According to https://html.spec.whatwg.org/multipage/dnd.html#dndevents,\n // only 'dragstart' and 'drop' has access to the data (source node)\n if (type !== 'drop') {\n return [2 /*return*/, items];\n }\n return [4 /*yield*/, Promise.all(items.map(toFilePromises))];\n case 1:\n files = _a.sent();\n return [2 /*return*/, noIgnoredFiles(flatten(files))];\n case 2: return [2 /*return*/, noIgnoredFiles(fromList(dt.files)\n .map(function (file) { return toFileWithPath(file); }))];\n }\n });\n });\n}\nfunction noIgnoredFiles(files) {\n return files.filter(function (file) { return FILES_TO_IGNORE.indexOf(file.name) === -1; });\n}\n// IE11 does not support Array.from()\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from#Browser_compatibility\n// https://developer.mozilla.org/en-US/docs/Web/API/FileList\n// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItemList\nfunction fromList(items) {\n if (items === null) {\n return [];\n }\n var files = [];\n // tslint:disable: prefer-for-of\n for (var i = 0; i < items.length; i++) {\n var file = items[i];\n files.push(file);\n }\n return files;\n}\n// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem\nfunction toFilePromises(item) {\n if (typeof item.webkitGetAsEntry !== 'function') {\n return fromDataTransferItem(item);\n }\n var entry = item.webkitGetAsEntry();\n // Safari supports dropping an image node from a different window and can be retrieved using\n // the DataTransferItem.getAsFile() API\n // NOTE: FileSystemEntry.file() throws if trying to get the file\n if (entry && entry.isDirectory) {\n return fromDirEntry(entry);\n }\n return fromDataTransferItem(item);\n}\nfunction flatten(items) {\n return items.reduce(function (acc, files) { return __spread(acc, (Array.isArray(files) ? flatten(files) : [files])); }, []);\n}\nfunction fromDataTransferItem(item) {\n var file = item.getAsFile();\n if (!file) {\n return Promise.reject(item + \" is not a File\");\n }\n var fwp = toFileWithPath(file);\n return Promise.resolve(fwp);\n}\n// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry\nfunction fromEntry(entry) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n return [2 /*return*/, entry.isDirectory ? fromDirEntry(entry) : fromFileEntry(entry)];\n });\n });\n}\n// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry\nfunction fromDirEntry(entry) {\n var reader = entry.createReader();\n return new Promise(function (resolve, reject) {\n var entries = [];\n function readEntries() {\n var _this = this;\n // https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry/createReader\n // https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryReader/readEntries\n reader.readEntries(function (batch) { return __awaiter(_this, void 0, void 0, function () {\n var files, err_1, items;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0:\n if (!!batch.length) return [3 /*break*/, 5];\n _a.label = 1;\n case 1:\n _a.trys.push([1, 3, , 4]);\n return [4 /*yield*/, Promise.all(entries)];\n case 2:\n files = _a.sent();\n resolve(files);\n return [3 /*break*/, 4];\n case 3:\n err_1 = _a.sent();\n reject(err_1);\n return [3 /*break*/, 4];\n case 4: return [3 /*break*/, 6];\n case 5:\n items = Promise.all(batch.map(fromEntry));\n entries.push(items);\n // Continue reading\n readEntries();\n _a.label = 6;\n case 6: return [2 /*return*/];\n }\n });\n }); }, function (err) {\n reject(err);\n });\n }\n readEntries();\n });\n}\n// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry\nfunction fromFileEntry(entry) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n return [2 /*return*/, new Promise(function (resolve, reject) {\n entry.file(function (file) {\n var fwp = toFileWithPath(file, entry.fullPath);\n resolve(fwp);\n }, function (err) {\n reject(err);\n });\n })];\n });\n });\n}\n//# sourceMappingURL=file-selector.js.map","\"use strict\";\n\nexports.__esModule = true;\n\nexports.default = function (file, acceptedFiles) {\n if (file && acceptedFiles) {\n var acceptedFilesArray = Array.isArray(acceptedFiles) ? acceptedFiles : acceptedFiles.split(',');\n var fileName = file.name || '';\n var mimeType = (file.type || '').toLowerCase();\n var baseMimeType = mimeType.replace(/\\/.*$/, '');\n return acceptedFilesArray.some(function (type) {\n var validType = type.trim().toLowerCase();\n\n if (validType.charAt(0) === '.') {\n return fileName.toLowerCase().endsWith(validType);\n } else if (validType.endsWith('/*')) {\n // This is something like a image/* mime type\n return baseMimeType === validType.replace(/\\/.*$/, '');\n }\n\n return mimeType === validType;\n });\n }\n\n return true;\n};","function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && iter[Symbol.iterator] != null || iter[\"@@iterator\"] != null) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }, _typeof(obj); }\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nimport accepts from \"attr-accept\"; // Error codes\n\nexport var FILE_INVALID_TYPE = \"file-invalid-type\";\nexport var FILE_TOO_LARGE = \"file-too-large\";\nexport var FILE_TOO_SMALL = \"file-too-small\";\nexport var TOO_MANY_FILES = \"too-many-files\";\nexport var ErrorCode = {\n FileInvalidType: FILE_INVALID_TYPE,\n FileTooLarge: FILE_TOO_LARGE,\n FileTooSmall: FILE_TOO_SMALL,\n TooManyFiles: TOO_MANY_FILES\n}; // File Errors\n\nexport var getInvalidTypeRejectionErr = function getInvalidTypeRejectionErr(accept) {\n accept = Array.isArray(accept) && accept.length === 1 ? accept[0] : accept;\n var messageSuffix = Array.isArray(accept) ? \"one of \".concat(accept.join(\", \")) : accept;\n return {\n code: FILE_INVALID_TYPE,\n message: \"File type must be \".concat(messageSuffix)\n };\n};\nexport var getTooLargeRejectionErr = function getTooLargeRejectionErr(maxSize) {\n return {\n code: FILE_TOO_LARGE,\n message: \"File is larger than \".concat(maxSize, \" \").concat(maxSize === 1 ? \"byte\" : \"bytes\")\n };\n};\nexport var getTooSmallRejectionErr = function getTooSmallRejectionErr(minSize) {\n return {\n code: FILE_TOO_SMALL,\n message: \"File is smaller than \".concat(minSize, \" \").concat(minSize === 1 ? \"byte\" : \"bytes\")\n };\n};\nexport var TOO_MANY_FILES_REJECTION = {\n code: TOO_MANY_FILES,\n message: \"Too many files\"\n}; // Firefox versions prior to 53 return a bogus MIME type for every file drag, so dragovers with\n// that MIME type will always be accepted\n\nexport function fileAccepted(file, accept) {\n var isAcceptable = file.type === \"application/x-moz-file\" || accepts(file, accept);\n return [isAcceptable, isAcceptable ? null : getInvalidTypeRejectionErr(accept)];\n}\nexport function fileMatchSize(file, minSize, maxSize) {\n if (isDefined(file.size)) {\n if (isDefined(minSize) && isDefined(maxSize)) {\n if (file.size > maxSize) return [false, getTooLargeRejectionErr(maxSize)];\n if (file.size < minSize) return [false, getTooSmallRejectionErr(minSize)];\n } else if (isDefined(minSize) && file.size < minSize) return [false, getTooSmallRejectionErr(minSize)];else if (isDefined(maxSize) && file.size > maxSize) return [false, getTooLargeRejectionErr(maxSize)];\n }\n\n return [true, null];\n}\n\nfunction isDefined(value) {\n return value !== undefined && value !== null;\n}\n/**\n *\n * @param {object} options\n * @param {File[]} options.files\n * @param {string|string[]} [options.accept]\n * @param {number} [options.minSize]\n * @param {number} [options.maxSize]\n * @param {boolean} [options.multiple]\n * @param {number} [options.maxFiles]\n * @param {(f: File) => FileError|FileError[]|null} [options.validator]\n * @returns\n */\n\n\nexport function allFilesAccepted(_ref) {\n var files = _ref.files,\n accept = _ref.accept,\n minSize = _ref.minSize,\n maxSize = _ref.maxSize,\n multiple = _ref.multiple,\n maxFiles = _ref.maxFiles,\n validator = _ref.validator;\n\n if (!multiple && files.length > 1 || multiple && maxFiles >= 1 && files.length > maxFiles) {\n return false;\n }\n\n return files.every(function (file) {\n var _fileAccepted = fileAccepted(file, accept),\n _fileAccepted2 = _slicedToArray(_fileAccepted, 1),\n accepted = _fileAccepted2[0];\n\n var _fileMatchSize = fileMatchSize(file, minSize, maxSize),\n _fileMatchSize2 = _slicedToArray(_fileMatchSize, 1),\n sizeMatch = _fileMatchSize2[0];\n\n var customErrors = validator ? validator(file) : null;\n return accepted && sizeMatch && !customErrors;\n });\n} // React's synthetic events has event.isPropagationStopped,\n// but to remain compatibility with other libs (Preact) fall back\n// to check event.cancelBubble\n\nexport function isPropagationStopped(event) {\n if (typeof event.isPropagationStopped === \"function\") {\n return event.isPropagationStopped();\n } else if (typeof event.cancelBubble !== \"undefined\") {\n return event.cancelBubble;\n }\n\n return false;\n}\nexport function isEvtWithFiles(event) {\n if (!event.dataTransfer) {\n return !!event.target && !!event.target.files;\n } // https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/types\n // https://developer.mozilla.org/en-US/docs/Web/API/HTML_Drag_and_Drop_API/Recommended_drag_types#file\n\n\n return Array.prototype.some.call(event.dataTransfer.types, function (type) {\n return type === \"Files\" || type === \"application/x-moz-file\";\n });\n}\nexport function isKindFile(item) {\n return _typeof(item) === \"object\" && item !== null && item.kind === \"file\";\n} // allow the entire document to be a drag target\n\nexport function onDocumentDragOver(event) {\n event.preventDefault();\n}\n\nfunction isIe(userAgent) {\n return userAgent.indexOf(\"MSIE\") !== -1 || userAgent.indexOf(\"Trident/\") !== -1;\n}\n\nfunction isEdge(userAgent) {\n return userAgent.indexOf(\"Edge/\") !== -1;\n}\n\nexport function isIeOrEdge() {\n var userAgent = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : window.navigator.userAgent;\n return isIe(userAgent) || isEdge(userAgent);\n}\n/**\n * This is intended to be used to compose event handlers\n * They are executed in order until one of them calls `event.isPropagationStopped()`.\n * Note that the check is done on the first invoke too,\n * meaning that if propagation was stopped before invoking the fns,\n * no handlers will be executed.\n *\n * @param {Function} fns the event hanlder functions\n * @return {Function} the event handler to add to an element\n */\n\nexport function composeEventHandlers() {\n for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n fns[_key] = arguments[_key];\n }\n\n return function (event) {\n for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n args[_key2 - 1] = arguments[_key2];\n }\n\n return fns.some(function (fn) {\n if (!isPropagationStopped(event) && fn) {\n fn.apply(void 0, [event].concat(args));\n }\n\n return isPropagationStopped(event);\n });\n };\n}\n/**\n * canUseFileSystemAccessAPI checks if the [File System Access API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API)\n * is supported by the browser.\n * @returns {boolean}\n */\n\nexport function canUseFileSystemAccessAPI() {\n return \"showOpenFilePicker\" in window;\n}\n/**\n * Convert the `{accept}` dropzone prop to the\n * `{types}` option for https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker\n *\n * @param {AcceptProp} accept\n * @returns {{accept: string[]}[]}\n */\n\nexport function pickerOptionsFromAccept(accept) {\n if (isDefined(accept)) {\n return Object.entries(accept).filter(function (_ref2) {\n var _ref3 = _slicedToArray(_ref2, 2),\n mimeType = _ref3[0],\n ext = _ref3[1];\n\n var ok = true;\n\n if (!isMIMEType(mimeType)) {\n console.warn(\"Skipped \\\"\".concat(mimeType, \"\\\" because it is not a valid MIME type. Check https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types for a list of valid MIME types.\"));\n ok = false;\n }\n\n if (!Array.isArray(ext) || !ext.every(isExt)) {\n console.warn(\"Skipped \\\"\".concat(mimeType, \"\\\" because an invalid file extension was provided.\"));\n ok = false;\n }\n\n return ok;\n }).map(function (_ref4) {\n var _ref5 = _slicedToArray(_ref4, 2),\n mimeType = _ref5[0],\n ext = _ref5[1];\n\n return {\n accept: _defineProperty({}, mimeType, ext)\n };\n });\n }\n\n return accept;\n}\n/**\n * Convert the `{accept}` dropzone prop to an array of MIME types/extensions.\n * @param {AcceptProp} accept\n * @returns {string}\n */\n\nexport function acceptPropAsAcceptAttr(accept) {\n if (isDefined(accept)) {\n return Object.entries(accept).reduce(function (a, _ref6) {\n var _ref7 = _slicedToArray(_ref6, 2),\n mimeType = _ref7[0],\n ext = _ref7[1];\n\n return [].concat(_toConsumableArray(a), [mimeType], _toConsumableArray(ext));\n }, []) // Silently discard invalid entries as pickerOptionsFromAccept warns about these\n .filter(function (v) {\n return isMIMEType(v) || isExt(v);\n }).join(\",\");\n }\n\n return undefined;\n}\n/**\n * Check if v is an exception caused by aborting a request (e.g window.showOpenFilePicker()).\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/DOMException.\n * @param {any} v\n * @returns {boolean} True if v is an abort exception.\n */\n\nexport function isAbort(v) {\n return v instanceof DOMException && (v.name === \"AbortError\" || v.code === v.ABORT_ERR);\n}\n/**\n * Check if v is a security error.\n *\n * See https://developer.mozilla.org/en-US/docs/Web/API/DOMException.\n * @param {any} v\n * @returns {boolean} True if v is a security error.\n */\n\nexport function isSecurityError(v) {\n return v instanceof DOMException && (v.name === \"SecurityError\" || v.code === v.SECURITY_ERR);\n}\n/**\n * Check if v is a MIME type string.\n *\n * See accepted format: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#unique_file_type_specifiers.\n *\n * @param {string} v\n */\n\nexport function isMIMEType(v) {\n return v === \"audio/*\" || v === \"video/*\" || v === \"image/*\" || v === \"text/*\" || /\\w+\\/[-+.\\w]+/g.test(v);\n}\n/**\n * Check if v is a file extension.\n * @param {string} v\n */\n\nexport function isExt(v) {\n return /^.*\\.[\\w]+$/.test(v);\n}\n/**\n * @typedef {Object.} AcceptProp\n */\n\n/**\n * @typedef {object} FileError\n * @property {string} message\n * @property {ErrorCode|string} code\n */\n\n/**\n * @typedef {\"file-invalid-type\"|\"file-too-large\"|\"file-too-small\"|\"too-many-files\"} ErrorCode\n */","var _excluded = [\"children\"],\n _excluded2 = [\"open\"],\n _excluded3 = [\"refKey\", \"role\", \"onKeyDown\", \"onFocus\", \"onBlur\", \"onClick\", \"onDragEnter\", \"onDragOver\", \"onDragLeave\", \"onDrop\"],\n _excluded4 = [\"refKey\", \"onChange\", \"onClick\"];\n\nfunction _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && iter[Symbol.iterator] != null || iter[\"@@iterator\"] != null) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\n/* eslint prefer-template: 0 */\nimport React, { forwardRef, Fragment, useCallback, useEffect, useImperativeHandle, useMemo, useReducer, useRef } from \"react\";\nimport PropTypes from \"prop-types\";\nimport { fromEvent } from \"file-selector\";\nimport { acceptPropAsAcceptAttr, allFilesAccepted, composeEventHandlers, fileAccepted, fileMatchSize, canUseFileSystemAccessAPI, isAbort, isEvtWithFiles, isIeOrEdge, isPropagationStopped, isSecurityError, onDocumentDragOver, pickerOptionsFromAccept, TOO_MANY_FILES_REJECTION } from \"./utils/index\";\n/**\n * Convenience wrapper component for the `useDropzone` hook\n *\n * ```jsx\n * \n * {({getRootProps, getInputProps}) => (\n *
\n * \n *

Drag 'n' drop some files here, or click to select files

\n *
\n * )}\n *
\n * ```\n */\n\nvar Dropzone = /*#__PURE__*/forwardRef(function (_ref, ref) {\n var children = _ref.children,\n params = _objectWithoutProperties(_ref, _excluded);\n\n var _useDropzone = useDropzone(params),\n open = _useDropzone.open,\n props = _objectWithoutProperties(_useDropzone, _excluded2);\n\n useImperativeHandle(ref, function () {\n return {\n open: open\n };\n }, [open]); // TODO: Figure out why react-styleguidist cannot create docs if we don't return a jsx element\n\n return /*#__PURE__*/React.createElement(Fragment, null, children(_objectSpread(_objectSpread({}, props), {}, {\n open: open\n })));\n});\nDropzone.displayName = \"Dropzone\"; // Add default props for react-docgen\n\nvar defaultProps = {\n disabled: false,\n getFilesFromEvent: fromEvent,\n maxSize: Infinity,\n minSize: 0,\n multiple: true,\n maxFiles: 0,\n preventDropOnDocument: true,\n noClick: false,\n noKeyboard: false,\n noDrag: false,\n noDragEventsBubbling: false,\n validator: null,\n useFsAccessApi: true,\n autoFocus: false\n};\nDropzone.defaultProps = defaultProps;\nDropzone.propTypes = {\n /**\n * Render function that exposes the dropzone state and prop getter fns\n *\n * @param {object} params\n * @param {Function} params.getRootProps Returns the props you should apply to the root drop container you render\n * @param {Function} params.getInputProps Returns the props you should apply to hidden file input you render\n * @param {Function} params.open Open the native file selection dialog\n * @param {boolean} params.isFocused Dropzone area is in focus\n * @param {boolean} params.isFileDialogActive File dialog is opened\n * @param {boolean} params.isDragActive Active drag is in progress\n * @param {boolean} params.isDragAccept Dragged files are accepted\n * @param {boolean} params.isDragReject Some dragged files are rejected\n * @param {File[]} params.acceptedFiles Accepted files\n * @param {FileRejection[]} params.fileRejections Rejected files and why they were rejected\n */\n children: PropTypes.func,\n\n /**\n * Set accepted file types.\n * Checkout https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker types option for more information.\n * Keep in mind that mime type determination is not reliable across platforms. CSV files,\n * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under\n * Windows. In some cases there might not be a mime type set at all (https://github.com/react-dropzone/react-dropzone/issues/276).\n */\n accept: PropTypes.objectOf(PropTypes.arrayOf(PropTypes.string)),\n\n /**\n * Allow drag 'n' drop (or selection from the file dialog) of multiple files\n */\n multiple: PropTypes.bool,\n\n /**\n * If false, allow dropped items to take over the current browser window\n */\n preventDropOnDocument: PropTypes.bool,\n\n /**\n * If true, disables click to open the native file selection dialog\n */\n noClick: PropTypes.bool,\n\n /**\n * If true, disables SPACE/ENTER to open the native file selection dialog.\n * Note that it also stops tracking the focus state.\n */\n noKeyboard: PropTypes.bool,\n\n /**\n * If true, disables drag 'n' drop\n */\n noDrag: PropTypes.bool,\n\n /**\n * If true, stops drag event propagation to parents\n */\n noDragEventsBubbling: PropTypes.bool,\n\n /**\n * Minimum file size (in bytes)\n */\n minSize: PropTypes.number,\n\n /**\n * Maximum file size (in bytes)\n */\n maxSize: PropTypes.number,\n\n /**\n * Maximum accepted number of files\n * The default value is 0 which means there is no limitation to how many files are accepted.\n */\n maxFiles: PropTypes.number,\n\n /**\n * Enable/disable the dropzone\n */\n disabled: PropTypes.bool,\n\n /**\n * Use this to provide a custom file aggregator\n *\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n getFilesFromEvent: PropTypes.func,\n\n /**\n * Cb for when closing the file dialog with no selection\n */\n onFileDialogCancel: PropTypes.func,\n\n /**\n * Cb for when opening the file dialog\n */\n onFileDialogOpen: PropTypes.func,\n\n /**\n * Set to true to use the https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API\n * to open the file picker instead of using an `` click event.\n */\n useFsAccessApi: PropTypes.bool,\n\n /**\n * Set to true to focus the root element on render\n */\n autoFocus: PropTypes.bool,\n\n /**\n * Cb for when the `dragenter` event occurs.\n *\n * @param {DragEvent} event\n */\n onDragEnter: PropTypes.func,\n\n /**\n * Cb for when the `dragleave` event occurs\n *\n * @param {DragEvent} event\n */\n onDragLeave: PropTypes.func,\n\n /**\n * Cb for when the `dragover` event occurs\n *\n * @param {DragEvent} event\n */\n onDragOver: PropTypes.func,\n\n /**\n * Cb for when the `drop` event occurs.\n * Note that this callback is invoked after the `getFilesFromEvent` callback is done.\n *\n * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.\n * `accept` must be a valid [MIME type](http://www.iana.org/assignments/media-types/media-types.xhtml) according to [input element specification](https://www.w3.org/wiki/HTML/Elements/input/file) or a valid file extension.\n * If `multiple` is set to false and additional files are dropped,\n * all files besides the first will be rejected.\n * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.\n *\n * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.\n * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.\n *\n * `onDrop` will provide you with an array of [File](https://developer.mozilla.org/en-US/docs/Web/API/File) objects which you can then process and send to a server.\n * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:\n *\n * ```js\n * function onDrop(acceptedFiles) {\n * const req = request.post('/upload')\n * acceptedFiles.forEach(file => {\n * req.attach(file.name, file)\n * })\n * req.end(callback)\n * }\n * ```\n *\n * @param {File[]} acceptedFiles\n * @param {FileRejection[]} fileRejections\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n onDrop: PropTypes.func,\n\n /**\n * Cb for when the `drop` event occurs.\n * Note that if no files are accepted, this callback is not invoked.\n *\n * @param {File[]} files\n * @param {(DragEvent|Event)} event\n */\n onDropAccepted: PropTypes.func,\n\n /**\n * Cb for when the `drop` event occurs.\n * Note that if no files are rejected, this callback is not invoked.\n *\n * @param {FileRejection[]} fileRejections\n * @param {(DragEvent|Event)} event\n */\n onDropRejected: PropTypes.func,\n\n /**\n * Cb for when there's some error from any of the promises.\n *\n * @param {Error} error\n */\n onError: PropTypes.func,\n\n /**\n * Custom validation function. It must return null if there's no errors.\n * @param {File} file\n * @returns {FileError|FileError[]|null}\n */\n validator: PropTypes.func\n};\nexport default Dropzone;\n/**\n * A function that is invoked for the `dragenter`,\n * `dragover` and `dragleave` events.\n * It is not invoked if the items are not files (such as link, text, etc.).\n *\n * @callback dragCb\n * @param {DragEvent} event\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n * It is not invoked if the items are not files (such as link, text, etc.).\n *\n * @callback dropCb\n * @param {File[]} acceptedFiles List of accepted files\n * @param {FileRejection[]} fileRejections List of rejected files and why they were rejected\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n * It is not invoked if the items are files (such as link, text, etc.).\n *\n * @callback dropAcceptedCb\n * @param {File[]} files List of accepted files that meet the given criteria\n * (`accept`, `multiple`, `minSize`, `maxSize`)\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n *\n * @callback dropRejectedCb\n * @param {File[]} files List of rejected files that do not meet the given criteria\n * (`accept`, `multiple`, `minSize`, `maxSize`)\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is used aggregate files,\n * in a asynchronous fashion, from drag or input change events.\n *\n * @callback getFilesFromEvent\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n * @returns {(File[]|Promise)}\n */\n\n/**\n * An object with the current dropzone state.\n *\n * @typedef {object} DropzoneState\n * @property {boolean} isFocused Dropzone area is in focus\n * @property {boolean} isFileDialogActive File dialog is opened\n * @property {boolean} isDragActive Active drag is in progress\n * @property {boolean} isDragAccept Dragged files are accepted\n * @property {boolean} isDragReject Some dragged files are rejected\n * @property {File[]} acceptedFiles Accepted files\n * @property {FileRejection[]} fileRejections Rejected files and why they were rejected\n */\n\n/**\n * An object with the dropzone methods.\n *\n * @typedef {object} DropzoneMethods\n * @property {Function} getRootProps Returns the props you should apply to the root drop container you render\n * @property {Function} getInputProps Returns the props you should apply to hidden file input you render\n * @property {Function} open Open the native file selection dialog\n */\n\nvar initialState = {\n isFocused: false,\n isFileDialogActive: false,\n isDragActive: false,\n isDragAccept: false,\n isDragReject: false,\n acceptedFiles: [],\n fileRejections: []\n};\n/**\n * A React hook that creates a drag 'n' drop area.\n *\n * ```jsx\n * function MyDropzone(props) {\n * const {getRootProps, getInputProps} = useDropzone({\n * onDrop: acceptedFiles => {\n * // do something with the File objects, e.g. upload to some server\n * }\n * });\n * return (\n *
\n * \n *

Drag and drop some files here, or click to select files

\n *
\n * )\n * }\n * ```\n *\n * @function useDropzone\n *\n * @param {object} props\n * @param {import(\"./utils\").AcceptProp} [props.accept] Set accepted file types.\n * Checkout https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker types option for more information.\n * Keep in mind that mime type determination is not reliable across platforms. CSV files,\n * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under\n * Windows. In some cases there might not be a mime type set at all (https://github.com/react-dropzone/react-dropzone/issues/276).\n * @param {boolean} [props.multiple=true] Allow drag 'n' drop (or selection from the file dialog) of multiple files\n * @param {boolean} [props.preventDropOnDocument=true] If false, allow dropped items to take over the current browser window\n * @param {boolean} [props.noClick=false] If true, disables click to open the native file selection dialog\n * @param {boolean} [props.noKeyboard=false] If true, disables SPACE/ENTER to open the native file selection dialog.\n * Note that it also stops tracking the focus state.\n * @param {boolean} [props.noDrag=false] If true, disables drag 'n' drop\n * @param {boolean} [props.noDragEventsBubbling=false] If true, stops drag event propagation to parents\n * @param {number} [props.minSize=0] Minimum file size (in bytes)\n * @param {number} [props.maxSize=Infinity] Maximum file size (in bytes)\n * @param {boolean} [props.disabled=false] Enable/disable the dropzone\n * @param {getFilesFromEvent} [props.getFilesFromEvent] Use this to provide a custom file aggregator\n * @param {Function} [props.onFileDialogCancel] Cb for when closing the file dialog with no selection\n * @param {boolean} [props.useFsAccessApi] Set to true to use the https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API\n * to open the file picker instead of using an `` click event.\n * @param {boolean} autoFocus Set to true to auto focus the root element.\n * @param {Function} [props.onFileDialogOpen] Cb for when opening the file dialog\n * @param {dragCb} [props.onDragEnter] Cb for when the `dragenter` event occurs.\n * @param {dragCb} [props.onDragLeave] Cb for when the `dragleave` event occurs\n * @param {dragCb} [props.onDragOver] Cb for when the `dragover` event occurs\n * @param {dropCb} [props.onDrop] Cb for when the `drop` event occurs.\n * Note that this callback is invoked after the `getFilesFromEvent` callback is done.\n *\n * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.\n * `accept` must be an object with keys as a valid [MIME type](http://www.iana.org/assignments/media-types/media-types.xhtml) according to [input element specification](https://www.w3.org/wiki/HTML/Elements/input/file) and the value an array of file extensions (optional).\n * If `multiple` is set to false and additional files are dropped,\n * all files besides the first will be rejected.\n * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.\n *\n * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.\n * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.\n *\n * `onDrop` will provide you with an array of [File](https://developer.mozilla.org/en-US/docs/Web/API/File) objects which you can then process and send to a server.\n * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:\n *\n * ```js\n * function onDrop(acceptedFiles) {\n * const req = request.post('/upload')\n * acceptedFiles.forEach(file => {\n * req.attach(file.name, file)\n * })\n * req.end(callback)\n * }\n * ```\n * @param {dropAcceptedCb} [props.onDropAccepted]\n * @param {dropRejectedCb} [props.onDropRejected]\n * @param {(error: Error) => void} [props.onError]\n *\n * @returns {DropzoneState & DropzoneMethods}\n */\n\nexport function useDropzone() {\n var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var _defaultProps$props = _objectSpread(_objectSpread({}, defaultProps), props),\n accept = _defaultProps$props.accept,\n disabled = _defaultProps$props.disabled,\n getFilesFromEvent = _defaultProps$props.getFilesFromEvent,\n maxSize = _defaultProps$props.maxSize,\n minSize = _defaultProps$props.minSize,\n multiple = _defaultProps$props.multiple,\n maxFiles = _defaultProps$props.maxFiles,\n onDragEnter = _defaultProps$props.onDragEnter,\n onDragLeave = _defaultProps$props.onDragLeave,\n onDragOver = _defaultProps$props.onDragOver,\n onDrop = _defaultProps$props.onDrop,\n onDropAccepted = _defaultProps$props.onDropAccepted,\n onDropRejected = _defaultProps$props.onDropRejected,\n onFileDialogCancel = _defaultProps$props.onFileDialogCancel,\n onFileDialogOpen = _defaultProps$props.onFileDialogOpen,\n useFsAccessApi = _defaultProps$props.useFsAccessApi,\n autoFocus = _defaultProps$props.autoFocus,\n preventDropOnDocument = _defaultProps$props.preventDropOnDocument,\n noClick = _defaultProps$props.noClick,\n noKeyboard = _defaultProps$props.noKeyboard,\n noDrag = _defaultProps$props.noDrag,\n noDragEventsBubbling = _defaultProps$props.noDragEventsBubbling,\n onError = _defaultProps$props.onError,\n validator = _defaultProps$props.validator;\n\n var acceptAttr = useMemo(function () {\n return acceptPropAsAcceptAttr(accept);\n }, [accept]);\n var pickerTypes = useMemo(function () {\n return pickerOptionsFromAccept(accept);\n }, [accept]);\n var onFileDialogOpenCb = useMemo(function () {\n return typeof onFileDialogOpen === \"function\" ? onFileDialogOpen : noop;\n }, [onFileDialogOpen]);\n var onFileDialogCancelCb = useMemo(function () {\n return typeof onFileDialogCancel === \"function\" ? onFileDialogCancel : noop;\n }, [onFileDialogCancel]);\n /**\n * @constant\n * @type {React.MutableRefObject}\n */\n\n var rootRef = useRef(null);\n var inputRef = useRef(null);\n\n var _useReducer = useReducer(reducer, initialState),\n _useReducer2 = _slicedToArray(_useReducer, 2),\n state = _useReducer2[0],\n dispatch = _useReducer2[1];\n\n var isFocused = state.isFocused,\n isFileDialogActive = state.isFileDialogActive;\n var fsAccessApiWorksRef = useRef(typeof window !== \"undefined\" && window.isSecureContext && useFsAccessApi && canUseFileSystemAccessAPI()); // Update file dialog active state when the window is focused on\n\n var onWindowFocus = function onWindowFocus() {\n // Execute the timeout only if the file dialog is opened in the browser\n if (!fsAccessApiWorksRef.current && isFileDialogActive) {\n setTimeout(function () {\n if (inputRef.current) {\n var files = inputRef.current.files;\n\n if (!files.length) {\n dispatch({\n type: \"closeDialog\"\n });\n onFileDialogCancelCb();\n }\n }\n }, 300);\n }\n };\n\n useEffect(function () {\n window.addEventListener(\"focus\", onWindowFocus, false);\n return function () {\n window.removeEventListener(\"focus\", onWindowFocus, false);\n };\n }, [inputRef, isFileDialogActive, onFileDialogCancelCb, fsAccessApiWorksRef]);\n var dragTargetsRef = useRef([]);\n\n var onDocumentDrop = function onDocumentDrop(event) {\n if (rootRef.current && rootRef.current.contains(event.target)) {\n // If we intercepted an event for our instance, let it propagate down to the instance's onDrop handler\n return;\n }\n\n event.preventDefault();\n dragTargetsRef.current = [];\n };\n\n useEffect(function () {\n if (preventDropOnDocument) {\n document.addEventListener(\"dragover\", onDocumentDragOver, false);\n document.addEventListener(\"drop\", onDocumentDrop, false);\n }\n\n return function () {\n if (preventDropOnDocument) {\n document.removeEventListener(\"dragover\", onDocumentDragOver);\n document.removeEventListener(\"drop\", onDocumentDrop);\n }\n };\n }, [rootRef, preventDropOnDocument]); // Auto focus the root when autoFocus is true\n\n useEffect(function () {\n if (!disabled && autoFocus && rootRef.current) {\n rootRef.current.focus();\n }\n\n return function () {};\n }, [rootRef, autoFocus, disabled]);\n var onErrCb = useCallback(function (e) {\n if (onError) {\n onError(e);\n } else {\n // Let the user know something's gone wrong if they haven't provided the onError cb.\n console.error(e);\n }\n }, [onError]);\n var onDragEnterCb = useCallback(function (event) {\n event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done\n\n event.persist();\n stopPropagation(event);\n dragTargetsRef.current = [].concat(_toConsumableArray(dragTargetsRef.current), [event.target]);\n\n if (isEvtWithFiles(event)) {\n Promise.resolve(getFilesFromEvent(event)).then(function (files) {\n if (isPropagationStopped(event) && !noDragEventsBubbling) {\n return;\n }\n\n var fileCount = files.length;\n var isDragAccept = fileCount > 0 && allFilesAccepted({\n files: files,\n accept: acceptAttr,\n minSize: minSize,\n maxSize: maxSize,\n multiple: multiple,\n maxFiles: maxFiles,\n validator: validator\n });\n var isDragReject = fileCount > 0 && !isDragAccept;\n dispatch({\n isDragAccept: isDragAccept,\n isDragReject: isDragReject,\n isDragActive: true,\n type: \"setDraggedFiles\"\n });\n\n if (onDragEnter) {\n onDragEnter(event);\n }\n }).catch(function (e) {\n return onErrCb(e);\n });\n }\n }, [getFilesFromEvent, onDragEnter, onErrCb, noDragEventsBubbling, acceptAttr, minSize, maxSize, multiple, maxFiles, validator]);\n var onDragOverCb = useCallback(function (event) {\n event.preventDefault();\n event.persist();\n stopPropagation(event);\n var hasFiles = isEvtWithFiles(event);\n\n if (hasFiles && event.dataTransfer) {\n try {\n event.dataTransfer.dropEffect = \"copy\";\n } catch (_unused) {}\n /* eslint-disable-line no-empty */\n\n }\n\n if (hasFiles && onDragOver) {\n onDragOver(event);\n }\n\n return false;\n }, [onDragOver, noDragEventsBubbling]);\n var onDragLeaveCb = useCallback(function (event) {\n event.preventDefault();\n event.persist();\n stopPropagation(event); // Only deactivate once the dropzone and all children have been left\n\n var targets = dragTargetsRef.current.filter(function (target) {\n return rootRef.current && rootRef.current.contains(target);\n }); // Make sure to remove a target present multiple times only once\n // (Firefox may fire dragenter/dragleave multiple times on the same element)\n\n var targetIdx = targets.indexOf(event.target);\n\n if (targetIdx !== -1) {\n targets.splice(targetIdx, 1);\n }\n\n dragTargetsRef.current = targets;\n\n if (targets.length > 0) {\n return;\n }\n\n dispatch({\n type: \"setDraggedFiles\",\n isDragActive: false,\n isDragAccept: false,\n isDragReject: false\n });\n\n if (isEvtWithFiles(event) && onDragLeave) {\n onDragLeave(event);\n }\n }, [rootRef, onDragLeave, noDragEventsBubbling]);\n var setFiles = useCallback(function (files, event) {\n var acceptedFiles = [];\n var fileRejections = [];\n files.forEach(function (file) {\n var _fileAccepted = fileAccepted(file, acceptAttr),\n _fileAccepted2 = _slicedToArray(_fileAccepted, 2),\n accepted = _fileAccepted2[0],\n acceptError = _fileAccepted2[1];\n\n var _fileMatchSize = fileMatchSize(file, minSize, maxSize),\n _fileMatchSize2 = _slicedToArray(_fileMatchSize, 2),\n sizeMatch = _fileMatchSize2[0],\n sizeError = _fileMatchSize2[1];\n\n var customErrors = validator ? validator(file) : null;\n\n if (accepted && sizeMatch && !customErrors) {\n acceptedFiles.push(file);\n } else {\n var errors = [acceptError, sizeError];\n\n if (customErrors) {\n errors = errors.concat(customErrors);\n }\n\n fileRejections.push({\n file: file,\n errors: errors.filter(function (e) {\n return e;\n })\n });\n }\n });\n\n if (!multiple && acceptedFiles.length > 1 || multiple && maxFiles >= 1 && acceptedFiles.length > maxFiles) {\n // Reject everything and empty accepted files\n acceptedFiles.forEach(function (file) {\n fileRejections.push({\n file: file,\n errors: [TOO_MANY_FILES_REJECTION]\n });\n });\n acceptedFiles.splice(0);\n }\n\n dispatch({\n acceptedFiles: acceptedFiles,\n fileRejections: fileRejections,\n type: \"setFiles\"\n });\n\n if (onDrop) {\n onDrop(acceptedFiles, fileRejections, event);\n }\n\n if (fileRejections.length > 0 && onDropRejected) {\n onDropRejected(fileRejections, event);\n }\n\n if (acceptedFiles.length > 0 && onDropAccepted) {\n onDropAccepted(acceptedFiles, event);\n }\n }, [dispatch, multiple, acceptAttr, minSize, maxSize, maxFiles, onDrop, onDropAccepted, onDropRejected, validator]);\n var onDropCb = useCallback(function (event) {\n event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done\n\n event.persist();\n stopPropagation(event);\n dragTargetsRef.current = [];\n\n if (isEvtWithFiles(event)) {\n Promise.resolve(getFilesFromEvent(event)).then(function (files) {\n if (isPropagationStopped(event) && !noDragEventsBubbling) {\n return;\n }\n\n setFiles(files, event);\n }).catch(function (e) {\n return onErrCb(e);\n });\n }\n\n dispatch({\n type: \"reset\"\n });\n }, [getFilesFromEvent, setFiles, onErrCb, noDragEventsBubbling]); // Fn for opening the file dialog programmatically\n\n var openFileDialog = useCallback(function () {\n // No point to use FS access APIs if context is not secure\n // https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts#feature_detection\n if (fsAccessApiWorksRef.current) {\n dispatch({\n type: \"openDialog\"\n });\n onFileDialogOpenCb(); // https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker\n\n var opts = {\n multiple: multiple,\n types: pickerTypes\n };\n window.showOpenFilePicker(opts).then(function (handles) {\n return getFilesFromEvent(handles);\n }).then(function (files) {\n setFiles(files, null);\n dispatch({\n type: \"closeDialog\"\n });\n }).catch(function (e) {\n // AbortError means the user canceled\n if (isAbort(e)) {\n onFileDialogCancelCb(e);\n dispatch({\n type: \"closeDialog\"\n });\n } else if (isSecurityError(e)) {\n fsAccessApiWorksRef.current = false; // CORS, so cannot use this API\n // Try using the input\n\n if (inputRef.current) {\n inputRef.current.value = null;\n inputRef.current.click();\n }\n } else {\n onErrCb(e);\n }\n });\n return;\n }\n\n if (inputRef.current) {\n dispatch({\n type: \"openDialog\"\n });\n onFileDialogOpenCb();\n inputRef.current.value = null;\n inputRef.current.click();\n }\n }, [dispatch, onFileDialogOpenCb, onFileDialogCancelCb, useFsAccessApi, setFiles, onErrCb, pickerTypes, multiple]); // Cb to open the file dialog when SPACE/ENTER occurs on the dropzone\n\n var onKeyDownCb = useCallback(function (event) {\n // Ignore keyboard events bubbling up the DOM tree\n if (!rootRef.current || !rootRef.current.isEqualNode(event.target)) {\n return;\n }\n\n if (event.key === \" \" || event.key === \"Enter\" || event.keyCode === 32 || event.keyCode === 13) {\n event.preventDefault();\n openFileDialog();\n }\n }, [rootRef, openFileDialog]); // Update focus state for the dropzone\n\n var onFocusCb = useCallback(function () {\n dispatch({\n type: \"focus\"\n });\n }, []);\n var onBlurCb = useCallback(function () {\n dispatch({\n type: \"blur\"\n });\n }, []); // Cb to open the file dialog when click occurs on the dropzone\n\n var onClickCb = useCallback(function () {\n if (noClick) {\n return;\n } // In IE11/Edge the file-browser dialog is blocking, therefore, use setTimeout()\n // to ensure React can handle state changes\n // See: https://github.com/react-dropzone/react-dropzone/issues/450\n\n\n if (isIeOrEdge()) {\n setTimeout(openFileDialog, 0);\n } else {\n openFileDialog();\n }\n }, [noClick, openFileDialog]);\n\n var composeHandler = function composeHandler(fn) {\n return disabled ? null : fn;\n };\n\n var composeKeyboardHandler = function composeKeyboardHandler(fn) {\n return noKeyboard ? null : composeHandler(fn);\n };\n\n var composeDragHandler = function composeDragHandler(fn) {\n return noDrag ? null : composeHandler(fn);\n };\n\n var stopPropagation = function stopPropagation(event) {\n if (noDragEventsBubbling) {\n event.stopPropagation();\n }\n };\n\n var getRootProps = useMemo(function () {\n return function () {\n var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n _ref2$refKey = _ref2.refKey,\n refKey = _ref2$refKey === void 0 ? \"ref\" : _ref2$refKey,\n role = _ref2.role,\n onKeyDown = _ref2.onKeyDown,\n onFocus = _ref2.onFocus,\n onBlur = _ref2.onBlur,\n onClick = _ref2.onClick,\n onDragEnter = _ref2.onDragEnter,\n onDragOver = _ref2.onDragOver,\n onDragLeave = _ref2.onDragLeave,\n onDrop = _ref2.onDrop,\n rest = _objectWithoutProperties(_ref2, _excluded3);\n\n return _objectSpread(_objectSpread(_defineProperty({\n onKeyDown: composeKeyboardHandler(composeEventHandlers(onKeyDown, onKeyDownCb)),\n onFocus: composeKeyboardHandler(composeEventHandlers(onFocus, onFocusCb)),\n onBlur: composeKeyboardHandler(composeEventHandlers(onBlur, onBlurCb)),\n onClick: composeHandler(composeEventHandlers(onClick, onClickCb)),\n onDragEnter: composeDragHandler(composeEventHandlers(onDragEnter, onDragEnterCb)),\n onDragOver: composeDragHandler(composeEventHandlers(onDragOver, onDragOverCb)),\n onDragLeave: composeDragHandler(composeEventHandlers(onDragLeave, onDragLeaveCb)),\n onDrop: composeDragHandler(composeEventHandlers(onDrop, onDropCb)),\n role: typeof role === \"string\" && role !== \"\" ? role : \"presentation\"\n }, refKey, rootRef), !disabled && !noKeyboard ? {\n tabIndex: 0\n } : {}), rest);\n };\n }, [rootRef, onKeyDownCb, onFocusCb, onBlurCb, onClickCb, onDragEnterCb, onDragOverCb, onDragLeaveCb, onDropCb, noKeyboard, noDrag, disabled]);\n var onInputElementClick = useCallback(function (event) {\n event.stopPropagation();\n }, []);\n var getInputProps = useMemo(function () {\n return function () {\n var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n _ref3$refKey = _ref3.refKey,\n refKey = _ref3$refKey === void 0 ? \"ref\" : _ref3$refKey,\n onChange = _ref3.onChange,\n onClick = _ref3.onClick,\n rest = _objectWithoutProperties(_ref3, _excluded4);\n\n var inputProps = _defineProperty({\n accept: acceptAttr,\n multiple: multiple,\n type: \"file\",\n style: {\n display: \"none\"\n },\n onChange: composeHandler(composeEventHandlers(onChange, onDropCb)),\n onClick: composeHandler(composeEventHandlers(onClick, onInputElementClick)),\n tabIndex: -1\n }, refKey, inputRef);\n\n return _objectSpread(_objectSpread({}, inputProps), rest);\n };\n }, [inputRef, accept, multiple, onDropCb, disabled]);\n return _objectSpread(_objectSpread({}, state), {}, {\n isFocused: isFocused && !disabled,\n getRootProps: getRootProps,\n getInputProps: getInputProps,\n rootRef: rootRef,\n inputRef: inputRef,\n open: composeHandler(openFileDialog)\n });\n}\n/**\n * @param {DropzoneState} state\n * @param {{type: string} & DropzoneState} action\n * @returns {DropzoneState}\n */\n\nfunction reducer(state, action) {\n /* istanbul ignore next */\n switch (action.type) {\n case \"focus\":\n return _objectSpread(_objectSpread({}, state), {}, {\n isFocused: true\n });\n\n case \"blur\":\n return _objectSpread(_objectSpread({}, state), {}, {\n isFocused: false\n });\n\n case \"openDialog\":\n return _objectSpread(_objectSpread({}, initialState), {}, {\n isFileDialogActive: true\n });\n\n case \"closeDialog\":\n return _objectSpread(_objectSpread({}, state), {}, {\n isFileDialogActive: false\n });\n\n case \"setDraggedFiles\":\n return _objectSpread(_objectSpread({}, state), {}, {\n isDragActive: action.isDragActive,\n isDragAccept: action.isDragAccept,\n isDragReject: action.isDragReject\n });\n\n case \"setFiles\":\n return _objectSpread(_objectSpread({}, state), {}, {\n acceptedFiles: action.acceptedFiles,\n fileRejections: action.fileRejections\n });\n\n case \"reset\":\n return _objectSpread({}, initialState);\n\n default:\n return state;\n }\n}\n\nfunction noop() {}\n\nexport { ErrorCode } from \"./utils\";","/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n","/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nmodule.exports = freeGlobal;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nmodule.exports = root;\n","var root = require('./_root');\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n return root.Date.now();\n};\n\nmodule.exports = now;\n","/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n}\n\nmodule.exports = trimmedEndIndex;\n","var trimmedEndIndex = require('./_trimmedEndIndex');\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n}\n\nmodule.exports = baseTrim;\n","var root = require('./_root');\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nmodule.exports = Symbol;\n","var Symbol = require('./_Symbol');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\nmodule.exports = getRawTag;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\nmodule.exports = objectToString;\n","var Symbol = require('./_Symbol'),\n getRawTag = require('./_getRawTag'),\n objectToString = require('./_objectToString');\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\nmodule.exports = baseGetTag;\n","/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n","var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nmodule.exports = isSymbol;\n","var baseTrim = require('./_baseTrim'),\n isObject = require('./isObject'),\n isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nmodule.exports = toNumber;\n","var isObject = require('./isObject'),\n now = require('./now'),\n toNumber = require('./toNumber');\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n nativeMin = Math.min;\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n}\n\nmodule.exports = debounce;\n","var debounce = require('./debounce'),\n isObject = require('./isObject');\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\nfunction throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n}\n\nmodule.exports = throttle;\n","import*as React from'react';import {cloneElement,isValidElement,createRef,PureComponent,Component,forwardRef,useRef,useState,useEffect,useLayoutEffect}from'react';import {findDOMNode}from'react-dom';import debounce from'lodash/debounce';import throttle from'lodash/throttle';/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nfunction __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nvar __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n };\r\n return __assign.apply(this, arguments);\r\n};\r\n\r\nfunction __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}var patchResizeHandler = function (resizeCallback, refreshMode, refreshRate, refreshOptions) {\n switch (refreshMode) {\n case 'debounce':\n return debounce(resizeCallback, refreshRate, refreshOptions);\n case 'throttle':\n return throttle(resizeCallback, refreshRate, refreshOptions);\n default:\n return resizeCallback;\n }\n};\nvar isFunction = function (fn) { return typeof fn === 'function'; };\nvar isSSR = function () { return typeof window === 'undefined'; };\nvar isDOMElement = function (element) {\n return element instanceof Element || element instanceof HTMLDocument;\n};\nvar createNotifier = function (onResize, setSize, handleWidth, handleHeight) {\n return function (_a) {\n var width = _a.width, height = _a.height;\n setSize(function (prev) {\n if (prev.width === width && prev.height === height) {\n // skip if dimensions haven't changed\n return prev;\n }\n if ((prev.width === width && !handleHeight) || (prev.height === height && !handleWidth)) {\n // process `handleHeight/handleWidth` props\n return prev;\n }\n onResize === null || onResize === void 0 ? void 0 : onResize(width, height);\n return { width: width, height: height };\n });\n };\n};var ResizeDetector = /** @class */ (function (_super) {\n __extends(ResizeDetector, _super);\n function ResizeDetector(props) {\n var _this = _super.call(this, props) || this;\n _this.cancelHandler = function () {\n if (_this.resizeHandler && _this.resizeHandler.cancel) {\n // cancel debounced handler\n _this.resizeHandler.cancel();\n _this.resizeHandler = null;\n }\n };\n _this.attachObserver = function () {\n var _a = _this.props, targetRef = _a.targetRef, observerOptions = _a.observerOptions;\n if (isSSR()) {\n return;\n }\n if (targetRef && targetRef.current) {\n _this.targetRef.current = targetRef.current;\n }\n var element = _this.getElement();\n if (!element) {\n // can't find element to observe\n return;\n }\n if (_this.observableElement && _this.observableElement === element) {\n // element is already observed\n return;\n }\n _this.observableElement = element;\n _this.resizeObserver.observe(element, observerOptions);\n };\n _this.getElement = function () {\n var _a = _this.props, querySelector = _a.querySelector, targetDomEl = _a.targetDomEl;\n if (isSSR())\n return null;\n // in case we pass a querySelector\n if (querySelector)\n return document.querySelector(querySelector);\n // in case we pass a DOM element\n if (targetDomEl && isDOMElement(targetDomEl))\n return targetDomEl;\n // in case we pass a React ref using React.createRef()\n if (_this.targetRef && isDOMElement(_this.targetRef.current))\n return _this.targetRef.current;\n // the worse case when we don't receive any information from the parent and the library doesn't add any wrappers\n // we have to use a deprecated `findDOMNode` method in order to find a DOM element to attach to\n var currentElement = findDOMNode(_this);\n if (!currentElement)\n return null;\n var renderType = _this.getRenderType();\n switch (renderType) {\n case 'renderProp':\n return currentElement;\n case 'childFunction':\n return currentElement;\n case 'child':\n return currentElement;\n case 'childArray':\n return currentElement;\n default:\n return currentElement.parentElement;\n }\n };\n _this.createResizeHandler = function (entries) {\n var _a = _this.props, _b = _a.handleWidth, handleWidth = _b === void 0 ? true : _b, _c = _a.handleHeight, handleHeight = _c === void 0 ? true : _c, onResize = _a.onResize;\n if (!handleWidth && !handleHeight)\n return;\n var notifyResize = createNotifier(onResize, _this.setState.bind(_this), handleWidth, handleHeight);\n entries.forEach(function (entry) {\n var _a = (entry && entry.contentRect) || {}, width = _a.width, height = _a.height;\n var shouldSetSize = !_this.skipOnMount && !isSSR();\n if (shouldSetSize) {\n notifyResize({ width: width, height: height });\n }\n _this.skipOnMount = false;\n });\n };\n _this.getRenderType = function () {\n var _a = _this.props, render = _a.render, children = _a.children;\n if (isFunction(render)) {\n // DEPRECATED. Use `Child Function Pattern` instead\n return 'renderProp';\n }\n if (isFunction(children)) {\n return 'childFunction';\n }\n if (isValidElement(children)) {\n return 'child';\n }\n if (Array.isArray(children)) {\n // DEPRECATED. Wrap children with a single parent\n return 'childArray';\n }\n // DEPRECATED. Use `Child Function Pattern` instead\n return 'parent';\n };\n var skipOnMount = props.skipOnMount, refreshMode = props.refreshMode, _a = props.refreshRate, refreshRate = _a === void 0 ? 1000 : _a, refreshOptions = props.refreshOptions;\n _this.state = {\n width: undefined,\n height: undefined\n };\n _this.skipOnMount = skipOnMount;\n _this.targetRef = createRef();\n _this.observableElement = null;\n if (isSSR()) {\n return _this;\n }\n _this.resizeHandler = patchResizeHandler(_this.createResizeHandler, refreshMode, refreshRate, refreshOptions);\n _this.resizeObserver = new window.ResizeObserver(_this.resizeHandler);\n return _this;\n }\n ResizeDetector.prototype.componentDidMount = function () {\n this.attachObserver();\n };\n ResizeDetector.prototype.componentDidUpdate = function () {\n this.attachObserver();\n };\n ResizeDetector.prototype.componentWillUnmount = function () {\n if (isSSR()) {\n return;\n }\n this.observableElement = null;\n this.resizeObserver.disconnect();\n this.cancelHandler();\n };\n ResizeDetector.prototype.render = function () {\n var _a = this.props, render = _a.render, children = _a.children, _b = _a.nodeType, WrapperTag = _b === void 0 ? 'div' : _b;\n var _c = this.state, width = _c.width, height = _c.height;\n var childProps = { width: width, height: height, targetRef: this.targetRef };\n var renderType = this.getRenderType();\n switch (renderType) {\n case 'renderProp':\n return render === null || render === void 0 ? void 0 : render(childProps);\n case 'childFunction': {\n var childFunction = children;\n return childFunction === null || childFunction === void 0 ? void 0 : childFunction(childProps);\n }\n case 'child': {\n // @TODO bug prone logic\n var child = children;\n if (child.type && typeof child.type === 'string') {\n // child is a native DOM elements such as div, span etc\n // eslint-disable-next-line @typescript-eslint/no-unused-vars\n childProps.targetRef; var nativeProps = __rest(childProps, [\"targetRef\"]);\n return cloneElement(child, nativeProps);\n }\n // class or functional component otherwise\n return cloneElement(child, childProps);\n }\n case 'childArray': {\n var childArray = children;\n return childArray.map(function (el) { return !!el && cloneElement(el, childProps); });\n }\n default:\n return React.createElement(WrapperTag, null);\n }\n };\n return ResizeDetector;\n}(PureComponent));function withResizeDetector(ComponentInner, options) {\n if (options === void 0) { options = {}; }\n var ResizeDetectorHOC = /** @class */ (function (_super) {\n __extends(ResizeDetectorHOC, _super);\n function ResizeDetectorHOC() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.ref = createRef();\n return _this;\n }\n ResizeDetectorHOC.prototype.render = function () {\n var _a = this.props, forwardedRef = _a.forwardedRef, rest = __rest(_a, [\"forwardedRef\"]);\n var targetRef = forwardedRef !== null && forwardedRef !== void 0 ? forwardedRef : this.ref;\n return (React.createElement(ResizeDetector, __assign({}, options, { targetRef: targetRef }),\n React.createElement(ComponentInner, __assign({ targetRef: targetRef }, rest))));\n };\n return ResizeDetectorHOC;\n }(Component));\n function forwardRefWrapper(props, ref) {\n return React.createElement(ResizeDetectorHOC, __assign({}, props, { forwardedRef: ref }));\n }\n var name = ComponentInner.displayName || ComponentInner.name;\n forwardRefWrapper.displayName = \"withResizeDetector(\".concat(name, \")\");\n return forwardRef(forwardRefWrapper);\n}var useEnhancedEffect = isSSR() ? useEffect : useLayoutEffect;\nfunction useResizeDetector(props) {\n if (props === void 0) { props = {}; }\n var _a = props.skipOnMount, skipOnMount = _a === void 0 ? false : _a, refreshMode = props.refreshMode, _b = props.refreshRate, refreshRate = _b === void 0 ? 1000 : _b, refreshOptions = props.refreshOptions, _c = props.handleWidth, handleWidth = _c === void 0 ? true : _c, _d = props.handleHeight, handleHeight = _d === void 0 ? true : _d, targetRef = props.targetRef, observerOptions = props.observerOptions, onResize = props.onResize;\n var skipResize = useRef(skipOnMount);\n var localRef = useRef(null);\n var resizeHandler = useRef();\n var ref = targetRef !== null && targetRef !== void 0 ? targetRef : localRef;\n var _e = useState({\n width: undefined,\n height: undefined\n }), size = _e[0], setSize = _e[1];\n useEnhancedEffect(function () {\n if (!handleWidth && !handleHeight)\n return;\n var notifyResize = createNotifier(onResize, setSize, handleWidth, handleHeight);\n var resizeCallback = function (entries) {\n if (!handleWidth && !handleHeight)\n return;\n entries.forEach(function (entry) {\n var _a = (entry && entry.contentRect) || {}, width = _a.width, height = _a.height;\n var shouldSetSize = !skipResize.current;\n if (shouldSetSize) {\n notifyResize({ width: width, height: height });\n }\n skipResize.current = false;\n });\n };\n resizeHandler.current = patchResizeHandler(resizeCallback, refreshMode, refreshRate, refreshOptions);\n var resizeObserver = new window.ResizeObserver(resizeHandler.current);\n if (ref.current) {\n resizeObserver.observe(ref.current, observerOptions);\n }\n return function () {\n var _a, _b;\n resizeObserver.disconnect();\n (_b = (_a = resizeHandler.current).cancel) === null || _b === void 0 ? void 0 : _b.call(_a);\n };\n }, [refreshMode, refreshRate, refreshOptions, handleWidth, handleHeight, onResize, observerOptions, ref.current]);\n return __assign({ ref: ref }, size);\n}export{ResizeDetector as default,useResizeDetector,withResizeDetector};//# sourceMappingURL=index.esm.js.map\n","/**\n * @license\n * Lodash \n * Copyright OpenJS Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '

' + func(text) + '

';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => '

fred, barney, & pebbles

'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %>');\n * compiled({ 'value': '