for now,\r\n// but we can improve the polyfill and add other input types, as needed. Note\r\n// that this fallback implementation will only be used if the host environment\r\n// does not support a native Array.from function. In most modern JS runtimes,\r\n// the toArray function exported here will be === Array.from.\r\ntoArray = (_a = Array.from, _a === void 0 ? function (collection) {\r\n var array = [];\r\n collection.forEach(function (item) { return array.push(item); });\r\n return array;\r\n} : _a);\r\nfunction maybeUnsubscribe(entryOrDep) {\r\n var unsubscribe = entryOrDep.unsubscribe;\r\n if (typeof unsubscribe === \"function\") {\r\n entryOrDep.unsubscribe = void 0;\r\n unsubscribe();\r\n }\r\n}\n\nvar emptySetPool = [];\r\nvar POOL_TARGET_SIZE = 100;\r\n// Since this package might be used browsers, we should avoid using the\r\n// Node built-in assert module.\r\nfunction assert(condition, optionalMessage) {\r\n if (!condition) {\r\n throw new Error(optionalMessage || \"assertion failure\");\r\n }\r\n}\r\nfunction valueIs(a, b) {\r\n var len = a.length;\r\n return (\r\n // Unknown values are not equal to each other.\r\n len > 0 &&\r\n // Both values must be ordinary (or both exceptional) to be equal.\r\n len === b.length &&\r\n // The underlying value or exception must be the same.\r\n a[len - 1] === b[len - 1]);\r\n}\r\nfunction valueGet(value) {\r\n switch (value.length) {\r\n case 0: throw new Error(\"unknown value\");\r\n case 1: return value[0];\r\n case 2: throw value[1];\r\n }\r\n}\r\nfunction valueCopy(value) {\r\n return value.slice(0);\r\n}\r\nvar Entry = /** @class */ (function () {\r\n function Entry(fn) {\r\n this.fn = fn;\r\n this.parents = new Set();\r\n this.childValues = new Map();\r\n // When this Entry has children that are dirty, this property becomes\r\n // a Set containing other Entry objects, borrowed from emptySetPool.\r\n // When the set becomes empty, it gets recycled back to emptySetPool.\r\n this.dirtyChildren = null;\r\n this.dirty = true;\r\n this.recomputing = false;\r\n this.value = [];\r\n this.deps = null;\r\n ++Entry.count;\r\n }\r\n Entry.prototype.peek = function () {\r\n if (this.value.length === 1 && !mightBeDirty(this)) {\r\n rememberParent(this);\r\n return this.value[0];\r\n }\r\n };\r\n // This is the most important method of the Entry API, because it\r\n // determines whether the cached this.value can be returned immediately,\r\n // or must be recomputed. The overall performance of the caching system\r\n // depends on the truth of the following observations: (1) this.dirty is\r\n // usually false, (2) this.dirtyChildren is usually null/empty, and thus\r\n // (3) valueGet(this.value) is usually returned without recomputation.\r\n Entry.prototype.recompute = function (args) {\r\n assert(!this.recomputing, \"already recomputing\");\r\n rememberParent(this);\r\n return mightBeDirty(this)\r\n ? reallyRecompute(this, args)\r\n : valueGet(this.value);\r\n };\r\n Entry.prototype.setDirty = function () {\r\n if (this.dirty)\r\n return;\r\n this.dirty = true;\r\n this.value.length = 0;\r\n reportDirty(this);\r\n // We can go ahead and unsubscribe here, since any further dirty\r\n // notifications we receive will be redundant, and unsubscribing may\r\n // free up some resources, e.g. file watchers.\r\n maybeUnsubscribe(this);\r\n };\r\n Entry.prototype.dispose = function () {\r\n var _this = this;\r\n this.setDirty();\r\n // Sever any dependency relationships with our own children, so those\r\n // children don't retain this parent Entry in their child.parents sets,\r\n // thereby preventing it from being fully garbage collected.\r\n forgetChildren(this);\r\n // Because this entry has been kicked out of the cache (in index.js),\r\n // we've lost the ability to find out if/when this entry becomes dirty,\r\n // whether that happens through a subscription, because of a direct call\r\n // to entry.setDirty(), or because one of its children becomes dirty.\r\n // Because of this loss of future information, we have to assume the\r\n // worst (that this entry might have become dirty very soon), so we must\r\n // immediately mark this entry's parents as dirty. Normally we could\r\n // just call entry.setDirty() rather than calling parent.setDirty() for\r\n // each parent, but that would leave this entry in parent.childValues\r\n // and parent.dirtyChildren, which would prevent the child from being\r\n // truly forgotten.\r\n eachParent(this, function (parent, child) {\r\n parent.setDirty();\r\n forgetChild(parent, _this);\r\n });\r\n };\r\n Entry.prototype.forget = function () {\r\n // The code that creates Entry objects in index.ts will replace this method\r\n // with one that actually removes the Entry from the cache, which will also\r\n // trigger the entry.dispose method.\r\n this.dispose();\r\n };\r\n Entry.prototype.dependOn = function (dep) {\r\n dep.add(this);\r\n if (!this.deps) {\r\n this.deps = emptySetPool.pop() || new Set();\r\n }\r\n this.deps.add(dep);\r\n };\r\n Entry.prototype.forgetDeps = function () {\r\n var _this = this;\r\n if (this.deps) {\r\n toArray(this.deps).forEach(function (dep) { return dep.delete(_this); });\r\n this.deps.clear();\r\n emptySetPool.push(this.deps);\r\n this.deps = null;\r\n }\r\n };\r\n Entry.count = 0;\r\n return Entry;\r\n}());\r\nfunction rememberParent(child) {\r\n var parent = parentEntrySlot.getValue();\r\n if (parent) {\r\n child.parents.add(parent);\r\n if (!parent.childValues.has(child)) {\r\n parent.childValues.set(child, []);\r\n }\r\n if (mightBeDirty(child)) {\r\n reportDirtyChild(parent, child);\r\n }\r\n else {\r\n reportCleanChild(parent, child);\r\n }\r\n return parent;\r\n }\r\n}\r\nfunction reallyRecompute(entry, args) {\r\n forgetChildren(entry);\r\n // Set entry as the parent entry while calling recomputeNewValue(entry).\r\n parentEntrySlot.withValue(entry, recomputeNewValue, [entry, args]);\r\n if (maybeSubscribe(entry, args)) {\r\n // If we successfully recomputed entry.value and did not fail to\r\n // (re)subscribe, then this Entry is no longer explicitly dirty.\r\n setClean(entry);\r\n }\r\n return valueGet(entry.value);\r\n}\r\nfunction recomputeNewValue(entry, args) {\r\n entry.recomputing = true;\r\n // Set entry.value as unknown.\r\n entry.value.length = 0;\r\n try {\r\n // If entry.fn succeeds, entry.value will become a normal Value.\r\n entry.value[0] = entry.fn.apply(null, args);\r\n }\r\n catch (e) {\r\n // If entry.fn throws, entry.value will become exceptional.\r\n entry.value[1] = e;\r\n }\r\n // Either way, this line is always reached.\r\n entry.recomputing = false;\r\n}\r\nfunction mightBeDirty(entry) {\r\n return entry.dirty || !!(entry.dirtyChildren && entry.dirtyChildren.size);\r\n}\r\nfunction setClean(entry) {\r\n entry.dirty = false;\r\n if (mightBeDirty(entry)) {\r\n // This Entry may still have dirty children, in which case we can't\r\n // let our parents know we're clean just yet.\r\n return;\r\n }\r\n reportClean(entry);\r\n}\r\nfunction reportDirty(child) {\r\n eachParent(child, reportDirtyChild);\r\n}\r\nfunction reportClean(child) {\r\n eachParent(child, reportCleanChild);\r\n}\r\nfunction eachParent(child, callback) {\r\n var parentCount = child.parents.size;\r\n if (parentCount) {\r\n var parents = toArray(child.parents);\r\n for (var i = 0; i < parentCount; ++i) {\r\n callback(parents[i], child);\r\n }\r\n }\r\n}\r\n// Let a parent Entry know that one of its children may be dirty.\r\nfunction reportDirtyChild(parent, child) {\r\n // Must have called rememberParent(child) before calling\r\n // reportDirtyChild(parent, child).\r\n assert(parent.childValues.has(child));\r\n assert(mightBeDirty(child));\r\n var parentWasClean = !mightBeDirty(parent);\r\n if (!parent.dirtyChildren) {\r\n parent.dirtyChildren = emptySetPool.pop() || new Set;\r\n }\r\n else if (parent.dirtyChildren.has(child)) {\r\n // If we already know this child is dirty, then we must have already\r\n // informed our own parents that we are dirty, so we can terminate\r\n // the recursion early.\r\n return;\r\n }\r\n parent.dirtyChildren.add(child);\r\n // If parent was clean before, it just became (possibly) dirty (according to\r\n // mightBeDirty), since we just added child to parent.dirtyChildren.\r\n if (parentWasClean) {\r\n reportDirty(parent);\r\n }\r\n}\r\n// Let a parent Entry know that one of its children is no longer dirty.\r\nfunction reportCleanChild(parent, child) {\r\n // Must have called rememberChild(child) before calling\r\n // reportCleanChild(parent, child).\r\n assert(parent.childValues.has(child));\r\n assert(!mightBeDirty(child));\r\n var childValue = parent.childValues.get(child);\r\n if (childValue.length === 0) {\r\n parent.childValues.set(child, valueCopy(child.value));\r\n }\r\n else if (!valueIs(childValue, child.value)) {\r\n parent.setDirty();\r\n }\r\n removeDirtyChild(parent, child);\r\n if (mightBeDirty(parent)) {\r\n return;\r\n }\r\n reportClean(parent);\r\n}\r\nfunction removeDirtyChild(parent, child) {\r\n var dc = parent.dirtyChildren;\r\n if (dc) {\r\n dc.delete(child);\r\n if (dc.size === 0) {\r\n if (emptySetPool.length < POOL_TARGET_SIZE) {\r\n emptySetPool.push(dc);\r\n }\r\n parent.dirtyChildren = null;\r\n }\r\n }\r\n}\r\n// Removes all children from this entry and returns an array of the\r\n// removed children.\r\nfunction forgetChildren(parent) {\r\n if (parent.childValues.size > 0) {\r\n parent.childValues.forEach(function (_value, child) {\r\n forgetChild(parent, child);\r\n });\r\n }\r\n // Remove this parent Entry from any sets to which it was added by the\r\n // addToSet method.\r\n parent.forgetDeps();\r\n // After we forget all our children, this.dirtyChildren must be empty\r\n // and therefore must have been reset to null.\r\n assert(parent.dirtyChildren === null);\r\n}\r\nfunction forgetChild(parent, child) {\r\n child.parents.delete(parent);\r\n parent.childValues.delete(child);\r\n removeDirtyChild(parent, child);\r\n}\r\nfunction maybeSubscribe(entry, args) {\r\n if (typeof entry.subscribe === \"function\") {\r\n try {\r\n maybeUnsubscribe(entry); // Prevent double subscriptions.\r\n entry.unsubscribe = entry.subscribe.apply(null, args);\r\n }\r\n catch (e) {\r\n // If this Entry has a subscribe function and it threw an exception\r\n // (or an unsubscribe function it previously returned now throws),\r\n // return false to indicate that we were not able to subscribe (or\r\n // unsubscribe), and this Entry should remain dirty.\r\n entry.setDirty();\r\n return false;\r\n }\r\n }\r\n // Returning true indicates either that there was no entry.subscribe\r\n // function or that it succeeded.\r\n return true;\r\n}\n\nvar EntryMethods = {\r\n setDirty: true,\r\n dispose: true,\r\n forget: true,\r\n};\r\nfunction dep(options) {\r\n var depsByKey = new Map();\r\n var subscribe = options && options.subscribe;\r\n function depend(key) {\r\n var parent = parentEntrySlot.getValue();\r\n if (parent) {\r\n var dep_1 = depsByKey.get(key);\r\n if (!dep_1) {\r\n depsByKey.set(key, dep_1 = new Set);\r\n }\r\n parent.dependOn(dep_1);\r\n if (typeof subscribe === \"function\") {\r\n maybeUnsubscribe(dep_1);\r\n dep_1.unsubscribe = subscribe(key);\r\n }\r\n }\r\n }\r\n depend.dirty = function dirty(key, entryMethodName) {\r\n var dep = depsByKey.get(key);\r\n if (dep) {\r\n var m_1 = (entryMethodName &&\r\n hasOwnProperty.call(EntryMethods, entryMethodName)) ? entryMethodName : \"setDirty\";\r\n // We have to use toArray(dep).forEach instead of dep.forEach, because\r\n // modifying a Set while iterating over it can cause elements in the Set\r\n // to be removed from the Set before they've been iterated over.\r\n toArray(dep).forEach(function (entry) { return entry[m_1](); });\r\n depsByKey.delete(key);\r\n maybeUnsubscribe(dep);\r\n }\r\n };\r\n return depend;\r\n}\n\nfunction makeDefaultMakeCacheKeyFunction() {\r\n var keyTrie = new Trie(typeof WeakMap === \"function\");\r\n return function () {\r\n return keyTrie.lookupArray(arguments);\r\n };\r\n}\r\n// The defaultMakeCacheKey function is remarkably powerful, because it gives\r\n// a unique object for any shallow-identical list of arguments. If you need\r\n// to implement a custom makeCacheKey function, you may find it helpful to\r\n// delegate the final work to defaultMakeCacheKey, which is why we export it\r\n// here. However, you may want to avoid defaultMakeCacheKey if your runtime\r\n// does not support WeakMap, or you have the ability to return a string key.\r\n// In those cases, just write your own custom makeCacheKey functions.\r\nvar defaultMakeCacheKey = makeDefaultMakeCacheKeyFunction();\r\nvar caches = new Set();\r\nfunction wrap(originalFunction, options) {\r\n if (options === void 0) { options = Object.create(null); }\r\n var cache = new Cache(options.max || Math.pow(2, 16), function (entry) { return entry.dispose(); });\r\n var keyArgs = options.keyArgs;\r\n var makeCacheKey = options.makeCacheKey ||\r\n makeDefaultMakeCacheKeyFunction();\r\n var optimistic = function () {\r\n var key = makeCacheKey.apply(null, keyArgs ? keyArgs.apply(null, arguments) : arguments);\r\n if (key === void 0) {\r\n return originalFunction.apply(null, arguments);\r\n }\r\n var entry = cache.get(key);\r\n if (!entry) {\r\n cache.set(key, entry = new Entry(originalFunction));\r\n entry.subscribe = options.subscribe;\r\n // Give the Entry the ability to trigger cache.delete(key), even though\r\n // the Entry itself does not know about key or cache.\r\n entry.forget = function () { return cache.delete(key); };\r\n }\r\n var value = entry.recompute(Array.prototype.slice.call(arguments));\r\n // Move this entry to the front of the least-recently used queue,\r\n // since we just finished computing its value.\r\n cache.set(key, entry);\r\n caches.add(cache);\r\n // Clean up any excess entries in the cache, but only if there is no\r\n // active parent entry, meaning we're not in the middle of a larger\r\n // computation that might be flummoxed by the cleaning.\r\n if (!parentEntrySlot.hasValue()) {\r\n caches.forEach(function (cache) { return cache.clean(); });\r\n caches.clear();\r\n }\r\n return value;\r\n };\r\n Object.defineProperty(optimistic, \"size\", {\r\n get: function () {\r\n return cache[\"map\"].size;\r\n },\r\n configurable: false,\r\n enumerable: false,\r\n });\r\n function dirtyKey(key) {\r\n var entry = cache.get(key);\r\n if (entry) {\r\n entry.setDirty();\r\n }\r\n }\r\n optimistic.dirtyKey = dirtyKey;\r\n optimistic.dirty = function dirty() {\r\n dirtyKey(makeCacheKey.apply(null, arguments));\r\n };\r\n function peekKey(key) {\r\n var entry = cache.get(key);\r\n if (entry) {\r\n return entry.peek();\r\n }\r\n }\r\n optimistic.peekKey = peekKey;\r\n optimistic.peek = function peek() {\r\n return peekKey(makeCacheKey.apply(null, arguments));\r\n };\r\n function forgetKey(key) {\r\n return cache.delete(key);\r\n }\r\n optimistic.forgetKey = forgetKey;\r\n optimistic.forget = function forget() {\r\n return forgetKey(makeCacheKey.apply(null, arguments));\r\n };\r\n optimistic.makeCacheKey = makeCacheKey;\r\n optimistic.getKey = keyArgs ? function getKey() {\r\n return makeCacheKey.apply(null, keyArgs.apply(null, arguments));\r\n } : makeCacheKey;\r\n return Object.freeze(optimistic);\r\n}\n\nexport { defaultMakeCacheKey, dep, wrap };\n","import { Subject } from './Subject';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nexport class BehaviorSubject extends Subject {\n constructor(_value) {\n super();\n this._value = _value;\n }\n get value() {\n return this.getValue();\n }\n _subscribe(subscriber) {\n const subscription = super._subscribe(subscriber);\n if (subscription && !subscription.closed) {\n subscriber.next(this._value);\n }\n return subscription;\n }\n getValue() {\n if (this.hasError) {\n throw this.thrownError;\n }\n else if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else {\n return this._value;\n }\n }\n next(value) {\n super.next(this._value = value);\n }\n}\n","import { Subscriber } from './Subscriber';\nexport class InnerSubscriber extends Subscriber {\n constructor(parent, outerValue, outerIndex) {\n super();\n this.parent = parent;\n this.outerValue = outerValue;\n this.outerIndex = outerIndex;\n this.index = 0;\n }\n _next(value) {\n this.parent.notifyNext(this.outerValue, value, this.outerIndex, this.index++, this);\n }\n _error(error) {\n this.parent.notifyError(error, this);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete(this);\n this.unsubscribe();\n }\n}\n","import { empty } from './observable/empty';\nimport { of } from './observable/of';\nimport { throwError } from './observable/throwError';\nexport var NotificationKind;\n(function (NotificationKind) {\n NotificationKind[\"NEXT\"] = \"N\";\n NotificationKind[\"ERROR\"] = \"E\";\n NotificationKind[\"COMPLETE\"] = \"C\";\n})(NotificationKind || (NotificationKind = {}));\nexport class Notification {\n constructor(kind, value, error) {\n this.kind = kind;\n this.value = value;\n this.error = error;\n this.hasValue = kind === 'N';\n }\n observe(observer) {\n switch (this.kind) {\n case 'N':\n return observer.next && observer.next(this.value);\n case 'E':\n return observer.error && observer.error(this.error);\n case 'C':\n return observer.complete && observer.complete();\n }\n }\n do(next, error, complete) {\n const kind = this.kind;\n switch (kind) {\n case 'N':\n return next && next(this.value);\n case 'E':\n return error && error(this.error);\n case 'C':\n return complete && complete();\n }\n }\n accept(nextOrObserver, error, complete) {\n if (nextOrObserver && typeof nextOrObserver.next === 'function') {\n return this.observe(nextOrObserver);\n }\n else {\n return this.do(nextOrObserver, error, complete);\n }\n }\n toObservable() {\n const kind = this.kind;\n switch (kind) {\n case 'N':\n return of(this.value);\n case 'E':\n return throwError(this.error);\n case 'C':\n return empty();\n }\n throw new Error('unexpected notification kind value');\n }\n static createNext(value) {\n if (typeof value !== 'undefined') {\n return new Notification('N', value);\n }\n return Notification.undefinedValueNotification;\n }\n static createError(err) {\n return new Notification('E', undefined, err);\n }\n static createComplete() {\n return Notification.completeNotification;\n }\n}\nNotification.completeNotification = new Notification('C');\nNotification.undefinedValueNotification = new Notification('N', undefined);\n","import { canReportError } from './util/canReportError';\nimport { toSubscriber } from './util/toSubscriber';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nexport class Observable {\n constructor(subscribe) {\n this._isScalar = false;\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n lift(operator) {\n const observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n }\n subscribe(observerOrNext, error, complete) {\n const { operator } = this;\n const sink = toSubscriber(observerOrNext, error, complete);\n if (operator) {\n sink.add(operator.call(sink, this.source));\n }\n else {\n sink.add(this.source || (config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?\n this._subscribe(sink) :\n this._trySubscribe(sink));\n }\n if (config.useDeprecatedSynchronousErrorHandling) {\n if (sink.syncErrorThrowable) {\n sink.syncErrorThrowable = false;\n if (sink.syncErrorThrown) {\n throw sink.syncErrorValue;\n }\n }\n }\n return sink;\n }\n _trySubscribe(sink) {\n try {\n return this._subscribe(sink);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n sink.syncErrorThrown = true;\n sink.syncErrorValue = err;\n }\n if (canReportError(sink)) {\n sink.error(err);\n }\n else {\n console.warn(err);\n }\n }\n }\n forEach(next, promiseCtor) {\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor((resolve, reject) => {\n let subscription;\n subscription = this.subscribe((value) => {\n try {\n next(value);\n }\n catch (err) {\n reject(err);\n if (subscription) {\n subscription.unsubscribe();\n }\n }\n }, reject, resolve);\n });\n }\n _subscribe(subscriber) {\n const { source } = this;\n return source && source.subscribe(subscriber);\n }\n [Symbol_observable]() {\n return this;\n }\n pipe(...operations) {\n if (operations.length === 0) {\n return this;\n }\n return pipeFromArray(operations)(this);\n }\n toPromise(promiseCtor) {\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor((resolve, reject) => {\n let value;\n this.subscribe((x) => value = x, (err) => reject(err), () => resolve(value));\n });\n }\n}\nObservable.create = (subscribe) => {\n return new Observable(subscribe);\n};\nfunction getPromiseCtor(promiseCtor) {\n if (!promiseCtor) {\n promiseCtor = config.Promise || Promise;\n }\n if (!promiseCtor) {\n throw new Error('no Promise impl found');\n }\n return promiseCtor;\n}\n","import { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport const empty = {\n closed: true,\n next(value) { },\n error(err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n hostReportError(err);\n }\n },\n complete() { }\n};\n","import { Subscriber } from './Subscriber';\nexport class OuterSubscriber extends Subscriber {\n notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n this.destination.next(innerValue);\n }\n notifyError(error, innerSub) {\n this.destination.error(error);\n }\n notifyComplete(innerSub) {\n this.destination.complete();\n }\n}\n","import { Subject } from './Subject';\nimport { queue } from './scheduler/queue';\nimport { Subscription } from './Subscription';\nimport { ObserveOnSubscriber } from './operators/observeOn';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nexport class ReplaySubject extends Subject {\n constructor(bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, scheduler) {\n super();\n this.scheduler = scheduler;\n this._events = [];\n this._infiniteTimeWindow = false;\n this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n this._windowTime = windowTime < 1 ? 1 : windowTime;\n if (windowTime === Number.POSITIVE_INFINITY) {\n this._infiniteTimeWindow = true;\n this.next = this.nextInfiniteTimeWindow;\n }\n else {\n this.next = this.nextTimeWindow;\n }\n }\n nextInfiniteTimeWindow(value) {\n if (!this.isStopped) {\n const _events = this._events;\n _events.push(value);\n if (_events.length > this._bufferSize) {\n _events.shift();\n }\n }\n super.next(value);\n }\n nextTimeWindow(value) {\n if (!this.isStopped) {\n this._events.push(new ReplayEvent(this._getNow(), value));\n this._trimBufferThenGetEvents();\n }\n super.next(value);\n }\n _subscribe(subscriber) {\n const _infiniteTimeWindow = this._infiniteTimeWindow;\n const _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n const scheduler = this.scheduler;\n const len = _events.length;\n let subscription;\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else if (this.isStopped || this.hasError) {\n subscription = Subscription.EMPTY;\n }\n else {\n this.observers.push(subscriber);\n subscription = new SubjectSubscription(this, subscriber);\n }\n if (scheduler) {\n subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));\n }\n if (_infiniteTimeWindow) {\n for (let i = 0; i < len && !subscriber.closed; i++) {\n subscriber.next(_events[i]);\n }\n }\n else {\n for (let i = 0; i < len && !subscriber.closed; i++) {\n subscriber.next(_events[i].value);\n }\n }\n if (this.hasError) {\n subscriber.error(this.thrownError);\n }\n else if (this.isStopped) {\n subscriber.complete();\n }\n return subscription;\n }\n _getNow() {\n return (this.scheduler || queue).now();\n }\n _trimBufferThenGetEvents() {\n const now = this._getNow();\n const _bufferSize = this._bufferSize;\n const _windowTime = this._windowTime;\n const _events = this._events;\n const eventsCount = _events.length;\n let spliceCount = 0;\n while (spliceCount < eventsCount) {\n if ((now - _events[spliceCount].time) < _windowTime) {\n break;\n }\n spliceCount++;\n }\n if (eventsCount > _bufferSize) {\n spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n }\n if (spliceCount > 0) {\n _events.splice(0, spliceCount);\n }\n return _events;\n }\n}\nclass ReplayEvent {\n constructor(time, value) {\n this.time = time;\n this.value = value;\n }\n}\n","export class Scheduler {\n constructor(SchedulerAction, now = Scheduler.now) {\n this.SchedulerAction = SchedulerAction;\n this.now = now;\n }\n schedule(work, delay = 0, state) {\n return new this.SchedulerAction(this, work).schedule(state, delay);\n }\n}\nScheduler.now = () => Date.now();\n","import { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nexport class SubjectSubscriber extends Subscriber {\n constructor(destination) {\n super(destination);\n this.destination = destination;\n }\n}\nexport class Subject extends Observable {\n constructor() {\n super();\n this.observers = [];\n this.closed = false;\n this.isStopped = false;\n this.hasError = false;\n this.thrownError = null;\n }\n [rxSubscriberSymbol]() {\n return new SubjectSubscriber(this);\n }\n lift(operator) {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n }\n next(value) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n if (!this.isStopped) {\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].next(value);\n }\n }\n }\n error(err) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n this.hasError = true;\n this.thrownError = err;\n this.isStopped = true;\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].error(err);\n }\n this.observers.length = 0;\n }\n complete() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n this.isStopped = true;\n const { observers } = this;\n const len = observers.length;\n const copy = observers.slice();\n for (let i = 0; i < len; i++) {\n copy[i].complete();\n }\n this.observers.length = 0;\n }\n unsubscribe() {\n this.isStopped = true;\n this.closed = true;\n this.observers = null;\n }\n _trySubscribe(subscriber) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else {\n return super._trySubscribe(subscriber);\n }\n }\n _subscribe(subscriber) {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n else if (this.hasError) {\n subscriber.error(this.thrownError);\n return Subscription.EMPTY;\n }\n else if (this.isStopped) {\n subscriber.complete();\n return Subscription.EMPTY;\n }\n else {\n this.observers.push(subscriber);\n return new SubjectSubscription(this, subscriber);\n }\n }\n asObservable() {\n const observable = new Observable();\n observable.source = this;\n return observable;\n }\n}\nSubject.create = (destination, source) => {\n return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n constructor(destination, source) {\n super();\n this.destination = destination;\n this.source = source;\n }\n next(value) {\n const { destination } = this;\n if (destination && destination.next) {\n destination.next(value);\n }\n }\n error(err) {\n const { destination } = this;\n if (destination && destination.error) {\n this.destination.error(err);\n }\n }\n complete() {\n const { destination } = this;\n if (destination && destination.complete) {\n this.destination.complete();\n }\n }\n _subscribe(subscriber) {\n const { source } = this;\n if (source) {\n return this.source.subscribe(subscriber);\n }\n else {\n return Subscription.EMPTY;\n }\n }\n}\n","import { Subscription } from './Subscription';\nexport class SubjectSubscription extends Subscription {\n constructor(subject, subscriber) {\n super();\n this.subject = subject;\n this.subscriber = subscriber;\n this.closed = false;\n }\n unsubscribe() {\n if (this.closed) {\n return;\n }\n this.closed = true;\n const subject = this.subject;\n const observers = subject.observers;\n this.subject = null;\n if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {\n return;\n }\n const subscriberIndex = observers.indexOf(this.subscriber);\n if (subscriberIndex !== -1) {\n observers.splice(subscriberIndex, 1);\n }\n }\n}\n","import { isFunction } from './util/isFunction';\nimport { empty as emptyObserver } from './Observer';\nimport { Subscription } from './Subscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nimport { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport class Subscriber extends Subscription {\n constructor(destinationOrNext, error, complete) {\n super();\n this.syncErrorValue = null;\n this.syncErrorThrown = false;\n this.syncErrorThrowable = false;\n this.isStopped = false;\n switch (arguments.length) {\n case 0:\n this.destination = emptyObserver;\n break;\n case 1:\n if (!destinationOrNext) {\n this.destination = emptyObserver;\n break;\n }\n if (typeof destinationOrNext === 'object') {\n if (destinationOrNext instanceof Subscriber) {\n this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n this.destination = destinationOrNext;\n destinationOrNext.add(this);\n }\n else {\n this.syncErrorThrowable = true;\n this.destination = new SafeSubscriber(this, destinationOrNext);\n }\n break;\n }\n default:\n this.syncErrorThrowable = true;\n this.destination = new SafeSubscriber(this, destinationOrNext, error, complete);\n break;\n }\n }\n [rxSubscriberSymbol]() { return this; }\n static create(next, error, complete) {\n const subscriber = new Subscriber(next, error, complete);\n subscriber.syncErrorThrowable = false;\n return subscriber;\n }\n next(value) {\n if (!this.isStopped) {\n this._next(value);\n }\n }\n error(err) {\n if (!this.isStopped) {\n this.isStopped = true;\n this._error(err);\n }\n }\n complete() {\n if (!this.isStopped) {\n this.isStopped = true;\n this._complete();\n }\n }\n unsubscribe() {\n if (this.closed) {\n return;\n }\n this.isStopped = true;\n super.unsubscribe();\n }\n _next(value) {\n this.destination.next(value);\n }\n _error(err) {\n this.destination.error(err);\n this.unsubscribe();\n }\n _complete() {\n this.destination.complete();\n this.unsubscribe();\n }\n _unsubscribeAndRecycle() {\n const { _parentOrParents } = this;\n this._parentOrParents = null;\n this.unsubscribe();\n this.closed = false;\n this.isStopped = false;\n this._parentOrParents = _parentOrParents;\n return this;\n }\n}\nexport class SafeSubscriber extends Subscriber {\n constructor(_parentSubscriber, observerOrNext, error, complete) {\n super();\n this._parentSubscriber = _parentSubscriber;\n let next;\n let context = this;\n if (isFunction(observerOrNext)) {\n next = observerOrNext;\n }\n else if (observerOrNext) {\n next = observerOrNext.next;\n error = observerOrNext.error;\n complete = observerOrNext.complete;\n if (observerOrNext !== emptyObserver) {\n context = Object.create(observerOrNext);\n if (isFunction(context.unsubscribe)) {\n this.add(context.unsubscribe.bind(context));\n }\n context.unsubscribe = this.unsubscribe.bind(this);\n }\n }\n this._context = context;\n this._next = next;\n this._error = error;\n this._complete = complete;\n }\n next(value) {\n if (!this.isStopped && this._next) {\n const { _parentSubscriber } = this;\n if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(this._next, value);\n }\n else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n this.unsubscribe();\n }\n }\n }\n error(err) {\n if (!this.isStopped) {\n const { _parentSubscriber } = this;\n const { useDeprecatedSynchronousErrorHandling } = config;\n if (this._error) {\n if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(this._error, err);\n this.unsubscribe();\n }\n else {\n this.__tryOrSetError(_parentSubscriber, this._error, err);\n this.unsubscribe();\n }\n }\n else if (!_parentSubscriber.syncErrorThrowable) {\n this.unsubscribe();\n if (useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n hostReportError(err);\n }\n else {\n if (useDeprecatedSynchronousErrorHandling) {\n _parentSubscriber.syncErrorValue = err;\n _parentSubscriber.syncErrorThrown = true;\n }\n else {\n hostReportError(err);\n }\n this.unsubscribe();\n }\n }\n }\n complete() {\n if (!this.isStopped) {\n const { _parentSubscriber } = this;\n if (this._complete) {\n const wrappedComplete = () => this._complete.call(this._context);\n if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n this.__tryOrUnsub(wrappedComplete);\n this.unsubscribe();\n }\n else {\n this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n this.unsubscribe();\n }\n }\n else {\n this.unsubscribe();\n }\n }\n }\n __tryOrUnsub(fn, value) {\n try {\n fn.call(this._context, value);\n }\n catch (err) {\n this.unsubscribe();\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n hostReportError(err);\n }\n }\n }\n __tryOrSetError(parent, fn, value) {\n if (!config.useDeprecatedSynchronousErrorHandling) {\n throw new Error('bad call');\n }\n try {\n fn.call(this._context, value);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n parent.syncErrorValue = err;\n parent.syncErrorThrown = true;\n return true;\n }\n else {\n hostReportError(err);\n return true;\n }\n }\n return false;\n }\n _unsubscribe() {\n const { _parentSubscriber } = this;\n this._context = null;\n this._parentSubscriber = null;\n _parentSubscriber.unsubscribe();\n }\n}\n","import { isArray } from './util/isArray';\nimport { isObject } from './util/isObject';\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nexport class Subscription {\n constructor(unsubscribe) {\n this.closed = false;\n this._parentOrParents = null;\n this._subscriptions = null;\n if (unsubscribe) {\n this._ctorUnsubscribe = true;\n this._unsubscribe = unsubscribe;\n }\n }\n unsubscribe() {\n let errors;\n if (this.closed) {\n return;\n }\n let { _parentOrParents, _ctorUnsubscribe, _unsubscribe, _subscriptions } = this;\n this.closed = true;\n this._parentOrParents = null;\n this._subscriptions = null;\n if (_parentOrParents instanceof Subscription) {\n _parentOrParents.remove(this);\n }\n else if (_parentOrParents !== null) {\n for (let index = 0; index < _parentOrParents.length; ++index) {\n const parent = _parentOrParents[index];\n parent.remove(this);\n }\n }\n if (isFunction(_unsubscribe)) {\n if (_ctorUnsubscribe) {\n this._unsubscribe = undefined;\n }\n try {\n _unsubscribe.call(this);\n }\n catch (e) {\n errors = e instanceof UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n }\n }\n if (isArray(_subscriptions)) {\n let index = -1;\n let len = _subscriptions.length;\n while (++index < len) {\n const sub = _subscriptions[index];\n if (isObject(sub)) {\n try {\n sub.unsubscribe();\n }\n catch (e) {\n errors = errors || [];\n if (e instanceof UnsubscriptionError) {\n errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n }\n else {\n errors.push(e);\n }\n }\n }\n }\n }\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n add(teardown) {\n let subscription = teardown;\n if (!teardown) {\n return Subscription.EMPTY;\n }\n switch (typeof teardown) {\n case 'function':\n subscription = new Subscription(teardown);\n case 'object':\n if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n return subscription;\n }\n else if (this.closed) {\n subscription.unsubscribe();\n return subscription;\n }\n else if (!(subscription instanceof Subscription)) {\n const tmp = subscription;\n subscription = new Subscription();\n subscription._subscriptions = [tmp];\n }\n break;\n default: {\n throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n }\n }\n let { _parentOrParents } = subscription;\n if (_parentOrParents === null) {\n subscription._parentOrParents = this;\n }\n else if (_parentOrParents instanceof Subscription) {\n if (_parentOrParents === this) {\n return subscription;\n }\n subscription._parentOrParents = [_parentOrParents, this];\n }\n else if (_parentOrParents.indexOf(this) === -1) {\n _parentOrParents.push(this);\n }\n else {\n return subscription;\n }\n const subscriptions = this._subscriptions;\n if (subscriptions === null) {\n this._subscriptions = [subscription];\n }\n else {\n subscriptions.push(subscription);\n }\n return subscription;\n }\n remove(subscription) {\n const subscriptions = this._subscriptions;\n if (subscriptions) {\n const subscriptionIndex = subscriptions.indexOf(subscription);\n if (subscriptionIndex !== -1) {\n subscriptions.splice(subscriptionIndex, 1);\n }\n }\n }\n}\nSubscription.EMPTY = (function (empty) {\n empty.closed = true;\n return empty;\n}(new Subscription()));\nfunction flattenUnsubscriptionErrors(errors) {\n return errors.reduce((errs, err) => errs.concat((err instanceof UnsubscriptionError) ? err.errors : err), []);\n}\n","let _enable_super_gross_mode_that_will_cause_bad_things = false;\nexport const config = {\n Promise: undefined,\n set useDeprecatedSynchronousErrorHandling(value) {\n if (value) {\n const error = new Error();\n console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n }\n else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n console.log('RxJS: Back to a better error behavior. Thank you. <3');\n }\n _enable_super_gross_mode_that_will_cause_bad_things = value;\n },\n get useDeprecatedSynchronousErrorHandling() {\n return _enable_super_gross_mode_that_will_cause_bad_things;\n },\n};\n","import { Subscriber } from './Subscriber';\nimport { Observable } from './Observable';\nimport { subscribeTo } from './util/subscribeTo';\nexport class SimpleInnerSubscriber extends Subscriber {\n constructor(parent) {\n super();\n this.parent = parent;\n }\n _next(value) {\n this.parent.notifyNext(value);\n }\n _error(error) {\n this.parent.notifyError(error);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete();\n this.unsubscribe();\n }\n}\nexport class ComplexInnerSubscriber extends Subscriber {\n constructor(parent, outerValue, outerIndex) {\n super();\n this.parent = parent;\n this.outerValue = outerValue;\n this.outerIndex = outerIndex;\n }\n _next(value) {\n this.parent.notifyNext(this.outerValue, value, this.outerIndex, this);\n }\n _error(error) {\n this.parent.notifyError(error);\n this.unsubscribe();\n }\n _complete() {\n this.parent.notifyComplete(this);\n this.unsubscribe();\n }\n}\nexport class SimpleOuterSubscriber extends Subscriber {\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n notifyError(err) {\n this.destination.error(err);\n }\n notifyComplete() {\n this.destination.complete();\n }\n}\nexport class ComplexOuterSubscriber extends Subscriber {\n notifyNext(_outerValue, innerValue, _outerIndex, _innerSub) {\n this.destination.next(innerValue);\n }\n notifyError(error) {\n this.destination.error(error);\n }\n notifyComplete(_innerSub) {\n this.destination.complete();\n }\n}\nexport function innerSubscribe(result, innerSubscriber) {\n if (innerSubscriber.closed) {\n return undefined;\n }\n if (result instanceof Observable) {\n return result.subscribe(innerSubscriber);\n }\n let subscription;\n try {\n subscription = subscribeTo(result)(innerSubscriber);\n }\n catch (error) {\n innerSubscriber.error(error);\n }\n return subscription;\n}\n","import { SubjectSubscriber } from '../Subject';\nimport { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nexport class ConnectableObservable extends Observable {\n constructor(source, subjectFactory) {\n super();\n this.source = source;\n this.subjectFactory = subjectFactory;\n this._refCount = 0;\n this._isComplete = false;\n }\n _subscribe(subscriber) {\n return this.getSubject().subscribe(subscriber);\n }\n getSubject() {\n const subject = this._subject;\n if (!subject || subject.isStopped) {\n this._subject = this.subjectFactory();\n }\n return this._subject;\n }\n connect() {\n let connection = this._connection;\n if (!connection) {\n this._isComplete = false;\n connection = this._connection = new Subscription();\n connection.add(this.source\n .subscribe(new ConnectableSubscriber(this.getSubject(), this)));\n if (connection.closed) {\n this._connection = null;\n connection = Subscription.EMPTY;\n }\n }\n return connection;\n }\n refCount() {\n return higherOrderRefCount()(this);\n }\n}\nexport const connectableObservableDescriptor = (() => {\n const connectableProto = ConnectableObservable.prototype;\n return {\n operator: { value: null },\n _refCount: { value: 0, writable: true },\n _subject: { value: null, writable: true },\n _connection: { value: null, writable: true },\n _subscribe: { value: connectableProto._subscribe },\n _isComplete: { value: connectableProto._isComplete, writable: true },\n getSubject: { value: connectableProto.getSubject },\n connect: { value: connectableProto.connect },\n refCount: { value: connectableProto.refCount }\n };\n})();\nclass ConnectableSubscriber extends SubjectSubscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _error(err) {\n this._unsubscribe();\n super._error(err);\n }\n _complete() {\n this.connectable._isComplete = true;\n this._unsubscribe();\n super._complete();\n }\n _unsubscribe() {\n const connectable = this.connectable;\n if (connectable) {\n this.connectable = null;\n const connection = connectable._connection;\n connectable._refCount = 0;\n connectable._subject = null;\n connectable._connection = null;\n if (connection) {\n connection.unsubscribe();\n }\n }\n }\n}\nclass RefCountOperator {\n constructor(connectable) {\n this.connectable = connectable;\n }\n call(subscriber, source) {\n const { connectable } = this;\n connectable._refCount++;\n const refCounter = new RefCountSubscriber(subscriber, connectable);\n const subscription = source.subscribe(refCounter);\n if (!refCounter.closed) {\n refCounter.connection = connectable.connect();\n }\n return subscription;\n }\n}\nclass RefCountSubscriber extends Subscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _unsubscribe() {\n const { connectable } = this;\n if (!connectable) {\n this.connection = null;\n return;\n }\n this.connectable = null;\n const refCount = connectable._refCount;\n if (refCount <= 0) {\n this.connection = null;\n return;\n }\n connectable._refCount = refCount - 1;\n if (refCount > 1) {\n this.connection = null;\n return;\n }\n const { connection } = this;\n const sharedConnection = connectable._connection;\n this.connection = null;\n if (sharedConnection && (!connection || sharedConnection === connection)) {\n sharedConnection.unsubscribe();\n }\n }\n}\n","import { isScheduler } from '../util/isScheduler';\nimport { isArray } from '../util/isArray';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { fromArray } from './fromArray';\nconst NONE = {};\nexport function combineLatest(...observables) {\n let resultSelector = undefined;\n let scheduler = undefined;\n if (isScheduler(observables[observables.length - 1])) {\n scheduler = observables.pop();\n }\n if (typeof observables[observables.length - 1] === 'function') {\n resultSelector = observables.pop();\n }\n if (observables.length === 1 && isArray(observables[0])) {\n observables = observables[0];\n }\n return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));\n}\nexport class CombineLatestOperator {\n constructor(resultSelector) {\n this.resultSelector = resultSelector;\n }\n call(subscriber, source) {\n return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));\n }\n}\nexport class CombineLatestSubscriber extends OuterSubscriber {\n constructor(destination, resultSelector) {\n super(destination);\n this.resultSelector = resultSelector;\n this.active = 0;\n this.values = [];\n this.observables = [];\n }\n _next(observable) {\n this.values.push(NONE);\n this.observables.push(observable);\n }\n _complete() {\n const observables = this.observables;\n const len = observables.length;\n if (len === 0) {\n this.destination.complete();\n }\n else {\n this.active = len;\n this.toRespond = len;\n for (let i = 0; i < len; i++) {\n const observable = observables[i];\n this.add(subscribeToResult(this, observable, undefined, i));\n }\n }\n }\n notifyComplete(unused) {\n if ((this.active -= 1) === 0) {\n this.destination.complete();\n }\n }\n notifyNext(_outerValue, innerValue, outerIndex) {\n const values = this.values;\n const oldVal = values[outerIndex];\n const toRespond = !this.toRespond\n ? 0\n : oldVal === NONE ? --this.toRespond : this.toRespond;\n values[outerIndex] = innerValue;\n if (toRespond === 0) {\n if (this.resultSelector) {\n this._tryResultSelector(values);\n }\n else {\n this.destination.next(values.slice());\n }\n }\n }\n _tryResultSelector(values) {\n let result;\n try {\n result = this.resultSelector.apply(this, values);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(result);\n }\n}\n","import { of } from './of';\nimport { concatAll } from '../operators/concatAll';\nexport function concat(...observables) {\n return concatAll()(of(...observables));\n}\n","import { Observable } from '../Observable';\nimport { from } from './from';\nimport { empty } from './empty';\nexport function defer(observableFactory) {\n return new Observable(subscriber => {\n let input;\n try {\n input = observableFactory();\n }\n catch (err) {\n subscriber.error(err);\n return undefined;\n }\n const source = input ? from(input) : empty();\n return source.subscribe(subscriber);\n });\n}\n","import { Observable } from '../Observable';\nexport const EMPTY = new Observable(subscriber => subscriber.complete());\nexport function empty(scheduler) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n return new Observable(subscriber => scheduler.schedule(() => subscriber.complete()));\n}\n","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { map } from '../operators/map';\nimport { isObject } from '../util/isObject';\nimport { from } from './from';\nexport function forkJoin(...sources) {\n if (sources.length === 1) {\n const first = sources[0];\n if (isArray(first)) {\n return forkJoinInternal(first, null);\n }\n if (isObject(first) && Object.getPrototypeOf(first) === Object.prototype) {\n const keys = Object.keys(first);\n return forkJoinInternal(keys.map(key => first[key]), keys);\n }\n }\n if (typeof sources[sources.length - 1] === 'function') {\n const resultSelector = sources.pop();\n sources = (sources.length === 1 && isArray(sources[0])) ? sources[0] : sources;\n return forkJoinInternal(sources, null).pipe(map((args) => resultSelector(...args)));\n }\n return forkJoinInternal(sources, null);\n}\nfunction forkJoinInternal(sources, keys) {\n return new Observable(subscriber => {\n const len = sources.length;\n if (len === 0) {\n subscriber.complete();\n return;\n }\n const values = new Array(len);\n let completed = 0;\n let emitted = 0;\n for (let i = 0; i < len; i++) {\n const source = from(sources[i]);\n let hasValue = false;\n subscriber.add(source.subscribe({\n next: value => {\n if (!hasValue) {\n hasValue = true;\n emitted++;\n }\n values[i] = value;\n },\n error: err => subscriber.error(err),\n complete: () => {\n completed++;\n if (completed === len || !hasValue) {\n if (emitted === len) {\n subscriber.next(keys ?\n keys.reduce((result, key, i) => (result[key] = values[i], result), {}) :\n values);\n }\n subscriber.complete();\n }\n }\n }));\n }\n });\n}\n","import { Observable } from '../Observable';\nimport { subscribeTo } from '../util/subscribeTo';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n if (!scheduler) {\n if (input instanceof Observable) {\n return input;\n }\n return new Observable(subscribeTo(input));\n }\n else {\n return scheduled(input, scheduler);\n }\n}\n","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n if (!scheduler) {\n return new Observable(subscribeToArray(input));\n }\n else {\n return scheduleArray(input, scheduler);\n }\n}\n","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nconst toString = (() => Object.prototype.toString)();\nexport function fromEvent(target, eventName, options, resultSelector) {\n if (isFunction(options)) {\n resultSelector = options;\n options = undefined;\n }\n if (resultSelector) {\n return fromEvent(target, eventName, options).pipe(map(args => isArray(args) ? resultSelector(...args) : resultSelector(args)));\n }\n return new Observable(subscriber => {\n function handler(e) {\n if (arguments.length > 1) {\n subscriber.next(Array.prototype.slice.call(arguments));\n }\n else {\n subscriber.next(e);\n }\n }\n setupSubscription(target, eventName, handler, subscriber, options);\n });\n}\nfunction setupSubscription(sourceObj, eventName, handler, subscriber, options) {\n let unsubscribe;\n if (isEventTarget(sourceObj)) {\n const source = sourceObj;\n sourceObj.addEventListener(eventName, handler, options);\n unsubscribe = () => source.removeEventListener(eventName, handler, options);\n }\n else if (isJQueryStyleEventEmitter(sourceObj)) {\n const source = sourceObj;\n sourceObj.on(eventName, handler);\n unsubscribe = () => source.off(eventName, handler);\n }\n else if (isNodeStyleEventEmitter(sourceObj)) {\n const source = sourceObj;\n sourceObj.addListener(eventName, handler);\n unsubscribe = () => source.removeListener(eventName, handler);\n }\n else if (sourceObj && sourceObj.length) {\n for (let i = 0, len = sourceObj.length; i < len; i++) {\n setupSubscription(sourceObj[i], eventName, handler, subscriber, options);\n }\n }\n else {\n throw new TypeError('Invalid event target');\n }\n subscriber.add(unsubscribe);\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n","import { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nexport function merge(...observables) {\n let concurrent = Number.POSITIVE_INFINITY;\n let scheduler = null;\n let last = observables[observables.length - 1];\n if (isScheduler(last)) {\n scheduler = observables.pop();\n if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {\n concurrent = observables.pop();\n }\n }\n else if (typeof last === 'number') {\n concurrent = observables.pop();\n }\n if (scheduler === null && observables.length === 1 && observables[0] instanceof Observable) {\n return observables[0];\n }\n return mergeAll(concurrent)(fromArray(observables, scheduler));\n}\n","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of(...args) {\n let scheduler = args[args.length - 1];\n if (isScheduler(scheduler)) {\n args.pop();\n return scheduleArray(args, scheduler);\n }\n else {\n return fromArray(args);\n }\n}\n","import { Observable } from '../Observable';\nexport function throwError(error, scheduler) {\n if (!scheduler) {\n return new Observable(subscriber => subscriber.error(error));\n }\n else {\n return new Observable(subscriber => scheduler.schedule(dispatch, 0, { error, subscriber }));\n }\n}\nfunction dispatch({ error, subscriber }) {\n subscriber.error(error);\n}\n","import { Observable } from '../Observable';\nimport { async } from '../scheduler/async';\nimport { isNumeric } from '../util/isNumeric';\nimport { isScheduler } from '../util/isScheduler';\nexport function timer(dueTime = 0, periodOrScheduler, scheduler) {\n let period = -1;\n if (isNumeric(periodOrScheduler)) {\n period = Number(periodOrScheduler) < 1 && 1 || Number(periodOrScheduler);\n }\n else if (isScheduler(periodOrScheduler)) {\n scheduler = periodOrScheduler;\n }\n if (!isScheduler(scheduler)) {\n scheduler = async;\n }\n return new Observable(subscriber => {\n const due = isNumeric(dueTime)\n ? dueTime\n : (+dueTime - scheduler.now());\n return scheduler.schedule(dispatch, due, {\n index: 0, period, subscriber\n });\n });\n}\nfunction dispatch(state) {\n const { index, period, subscriber } = state;\n subscriber.next(index);\n if (subscriber.closed) {\n return;\n }\n else if (period === -1) {\n return subscriber.complete();\n }\n state.index = index + 1;\n this.schedule(state, period);\n}\n","import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';\nexport function audit(durationSelector) {\n return function auditOperatorFunction(source) {\n return source.lift(new AuditOperator(durationSelector));\n };\n}\nclass AuditOperator {\n constructor(durationSelector) {\n this.durationSelector = durationSelector;\n }\n call(subscriber, source) {\n return source.subscribe(new AuditSubscriber(subscriber, this.durationSelector));\n }\n}\nclass AuditSubscriber extends SimpleOuterSubscriber {\n constructor(destination, durationSelector) {\n super(destination);\n this.durationSelector = durationSelector;\n this.hasValue = false;\n }\n _next(value) {\n this.value = value;\n this.hasValue = true;\n if (!this.throttled) {\n let duration;\n try {\n const { durationSelector } = this;\n duration = durationSelector(value);\n }\n catch (err) {\n return this.destination.error(err);\n }\n const innerSubscription = innerSubscribe(duration, new SimpleInnerSubscriber(this));\n if (!innerSubscription || innerSubscription.closed) {\n this.clearThrottle();\n }\n else {\n this.add(this.throttled = innerSubscription);\n }\n }\n }\n clearThrottle() {\n const { value, hasValue, throttled } = this;\n if (throttled) {\n this.remove(throttled);\n this.throttled = undefined;\n throttled.unsubscribe();\n }\n if (hasValue) {\n this.value = undefined;\n this.hasValue = false;\n this.destination.next(value);\n }\n }\n notifyNext() {\n this.clearThrottle();\n }\n notifyComplete() {\n this.clearThrottle();\n }\n}\n","import { async } from '../scheduler/async';\nimport { audit } from './audit';\nimport { timer } from '../observable/timer';\nexport function auditTime(duration, scheduler = async) {\n return audit(() => timer(duration, scheduler));\n}\n","import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function catchError(selector) {\n return function catchErrorOperatorFunction(source) {\n const operator = new CatchOperator(selector);\n const caught = source.lift(operator);\n return (operator.caught = caught);\n };\n}\nclass CatchOperator {\n constructor(selector) {\n this.selector = selector;\n }\n call(subscriber, source) {\n return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));\n }\n}\nclass CatchSubscriber extends SimpleOuterSubscriber {\n constructor(destination, selector, caught) {\n super(destination);\n this.selector = selector;\n this.caught = caught;\n }\n error(err) {\n if (!this.isStopped) {\n let result;\n try {\n result = this.selector(err, this.caught);\n }\n catch (err2) {\n super.error(err2);\n return;\n }\n this._unsubscribeAndRecycle();\n const innerSubscriber = new SimpleInnerSubscriber(this);\n this.add(innerSubscriber);\n const innerSubscription = innerSubscribe(result, innerSubscriber);\n if (innerSubscription !== innerSubscriber) {\n this.add(innerSubscription);\n }\n }\n }\n}\n","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n return mergeAll(1);\n}\n","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n return mergeMap(project, resultSelector, 1);\n}\n","import { Subscriber } from '../Subscriber';\nexport function defaultIfEmpty(defaultValue = null) {\n return (source) => source.lift(new DefaultIfEmptyOperator(defaultValue));\n}\nclass DefaultIfEmptyOperator {\n constructor(defaultValue) {\n this.defaultValue = defaultValue;\n }\n call(subscriber, source) {\n return source.subscribe(new DefaultIfEmptySubscriber(subscriber, this.defaultValue));\n }\n}\nclass DefaultIfEmptySubscriber extends Subscriber {\n constructor(destination, defaultValue) {\n super(destination);\n this.defaultValue = defaultValue;\n this.isEmpty = true;\n }\n _next(value) {\n this.isEmpty = false;\n this.destination.next(value);\n }\n _complete() {\n if (this.isEmpty) {\n this.destination.next(this.defaultValue);\n }\n this.destination.complete();\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n return (source) => source.lift(new DistinctUntilChangedOperator(compare, keySelector));\n}\nclass DistinctUntilChangedOperator {\n constructor(compare, keySelector) {\n this.compare = compare;\n this.keySelector = keySelector;\n }\n call(subscriber, source) {\n return source.subscribe(new DistinctUntilChangedSubscriber(subscriber, this.compare, this.keySelector));\n }\n}\nclass DistinctUntilChangedSubscriber extends Subscriber {\n constructor(destination, compare, keySelector) {\n super(destination);\n this.keySelector = keySelector;\n this.hasKey = false;\n if (typeof compare === 'function') {\n this.compare = compare;\n }\n }\n compare(x, y) {\n return x === y;\n }\n _next(value) {\n let key;\n try {\n const { keySelector } = this;\n key = keySelector ? keySelector(value) : value;\n }\n catch (err) {\n return this.destination.error(err);\n }\n let result = false;\n if (this.hasKey) {\n try {\n const { compare } = this;\n result = compare(this.key, key);\n }\n catch (err) {\n return this.destination.error(err);\n }\n }\n else {\n this.hasKey = true;\n }\n if (!result) {\n this.key = key;\n this.destination.next(value);\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function filter(predicate, thisArg) {\n return function filterOperatorFunction(source) {\n return source.lift(new FilterOperator(predicate, thisArg));\n };\n}\nclass FilterOperator {\n constructor(predicate, thisArg) {\n this.predicate = predicate;\n this.thisArg = thisArg;\n }\n call(subscriber, source) {\n return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));\n }\n}\nclass FilterSubscriber extends Subscriber {\n constructor(destination, predicate, thisArg) {\n super(destination);\n this.predicate = predicate;\n this.thisArg = thisArg;\n this.count = 0;\n }\n _next(value) {\n let result;\n try {\n result = this.predicate.call(this.thisArg, value, this.count++);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n if (result) {\n this.destination.next(value);\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nexport function finalize(callback) {\n return (source) => source.lift(new FinallyOperator(callback));\n}\nclass FinallyOperator {\n constructor(callback) {\n this.callback = callback;\n }\n call(subscriber, source) {\n return source.subscribe(new FinallySubscriber(subscriber, this.callback));\n }\n}\nclass FinallySubscriber extends Subscriber {\n constructor(destination, callback) {\n super(destination);\n this.add(new Subscription(callback));\n }\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { take } from './take';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { identity } from '../util/identity';\nexport function first(predicate, defaultValue) {\n const hasDefaultValue = arguments.length >= 2;\n return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, take(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { takeLast } from './takeLast';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { identity } from '../util/identity';\nexport function last(predicate, defaultValue) {\n const hasDefaultValue = arguments.length >= 2;\n return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, takeLast(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { Subscriber } from '../Subscriber';\nexport function map(project, thisArg) {\n return function mapOperation(source) {\n if (typeof project !== 'function') {\n throw new TypeError('argument is not a function. Are you looking for `mapTo()`?');\n }\n return source.lift(new MapOperator(project, thisArg));\n };\n}\nexport class MapOperator {\n constructor(project, thisArg) {\n this.project = project;\n this.thisArg = thisArg;\n }\n call(subscriber, source) {\n return source.subscribe(new MapSubscriber(subscriber, this.project, this.thisArg));\n }\n}\nclass MapSubscriber extends Subscriber {\n constructor(destination, project, thisArg) {\n super(destination);\n this.project = project;\n this.count = 0;\n this.thisArg = thisArg || this;\n }\n _next(value) {\n let result;\n try {\n result = this.project.call(this.thisArg, value, this.count++);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(result);\n }\n}\n","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent = Number.POSITIVE_INFINITY) {\n return mergeMap(identity, concurrent);\n}\n","import { map } from './map';\nimport { from } from '../observable/from';\nimport { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function mergeMap(project, resultSelector, concurrent = Number.POSITIVE_INFINITY) {\n if (typeof resultSelector === 'function') {\n return (source) => source.pipe(mergeMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii))), concurrent));\n }\n else if (typeof resultSelector === 'number') {\n concurrent = resultSelector;\n }\n return (source) => source.lift(new MergeMapOperator(project, concurrent));\n}\nexport class MergeMapOperator {\n constructor(project, concurrent = Number.POSITIVE_INFINITY) {\n this.project = project;\n this.concurrent = concurrent;\n }\n call(observer, source) {\n return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));\n }\n}\nexport class MergeMapSubscriber extends SimpleOuterSubscriber {\n constructor(destination, project, concurrent = Number.POSITIVE_INFINITY) {\n super(destination);\n this.project = project;\n this.concurrent = concurrent;\n this.hasCompleted = false;\n this.buffer = [];\n this.active = 0;\n this.index = 0;\n }\n _next(value) {\n if (this.active < this.concurrent) {\n this._tryNext(value);\n }\n else {\n this.buffer.push(value);\n }\n }\n _tryNext(value) {\n let result;\n const index = this.index++;\n try {\n result = this.project(value, index);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.active++;\n this._innerSub(result);\n }\n _innerSub(ish) {\n const innerSubscriber = new SimpleInnerSubscriber(this);\n const destination = this.destination;\n destination.add(innerSubscriber);\n const innerSubscription = innerSubscribe(ish, innerSubscriber);\n if (innerSubscription !== innerSubscriber) {\n destination.add(innerSubscription);\n }\n }\n _complete() {\n this.hasCompleted = true;\n if (this.active === 0 && this.buffer.length === 0) {\n this.destination.complete();\n }\n this.unsubscribe();\n }\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n notifyComplete() {\n const buffer = this.buffer;\n this.active--;\n if (buffer.length > 0) {\n this._next(buffer.shift());\n }\n else if (this.active === 0 && this.hasCompleted) {\n this.destination.complete();\n }\n }\n}\nexport const flatMap = mergeMap;\n","import { connectableObservableDescriptor } from '../observable/ConnectableObservable';\nexport function multicast(subjectOrSubjectFactory, selector) {\n return function multicastOperatorFunction(source) {\n let subjectFactory;\n if (typeof subjectOrSubjectFactory === 'function') {\n subjectFactory = subjectOrSubjectFactory;\n }\n else {\n subjectFactory = function subjectFactory() {\n return subjectOrSubjectFactory;\n };\n }\n if (typeof selector === 'function') {\n return source.lift(new MulticastOperator(subjectFactory, selector));\n }\n const connectable = Object.create(source, connectableObservableDescriptor);\n connectable.source = source;\n connectable.subjectFactory = subjectFactory;\n return connectable;\n };\n}\nexport class MulticastOperator {\n constructor(subjectFactory, selector) {\n this.subjectFactory = subjectFactory;\n this.selector = selector;\n }\n call(subscriber, source) {\n const { selector } = this;\n const subject = this.subjectFactory();\n const subscription = selector(subject).subscribe(subscriber);\n subscription.add(source.subscribe(subject));\n return subscription;\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function observeOn(scheduler, delay = 0) {\n return function observeOnOperatorFunction(source) {\n return source.lift(new ObserveOnOperator(scheduler, delay));\n };\n}\nexport class ObserveOnOperator {\n constructor(scheduler, delay = 0) {\n this.scheduler = scheduler;\n this.delay = delay;\n }\n call(subscriber, source) {\n return source.subscribe(new ObserveOnSubscriber(subscriber, this.scheduler, this.delay));\n }\n}\nexport class ObserveOnSubscriber extends Subscriber {\n constructor(destination, scheduler, delay = 0) {\n super(destination);\n this.scheduler = scheduler;\n this.delay = delay;\n }\n static dispatch(arg) {\n const { notification, destination } = arg;\n notification.observe(destination);\n this.unsubscribe();\n }\n scheduleMessage(notification) {\n const destination = this.destination;\n destination.add(this.scheduler.schedule(ObserveOnSubscriber.dispatch, this.delay, new ObserveOnMessage(notification, this.destination)));\n }\n _next(value) {\n this.scheduleMessage(Notification.createNext(value));\n }\n _error(err) {\n this.scheduleMessage(Notification.createError(err));\n this.unsubscribe();\n }\n _complete() {\n this.scheduleMessage(Notification.createComplete());\n this.unsubscribe();\n }\n}\nexport class ObserveOnMessage {\n constructor(notification, destination) {\n this.notification = notification;\n this.destination = destination;\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function pairwise() {\n return (source) => source.lift(new PairwiseOperator());\n}\nclass PairwiseOperator {\n call(subscriber, source) {\n return source.subscribe(new PairwiseSubscriber(subscriber));\n }\n}\nclass PairwiseSubscriber extends Subscriber {\n constructor(destination) {\n super(destination);\n this.hasPrev = false;\n }\n _next(value) {\n let pair;\n if (this.hasPrev) {\n pair = [this.prev, value];\n }\n else {\n this.hasPrev = true;\n }\n this.prev = value;\n if (pair) {\n this.destination.next(pair);\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function refCount() {\n return function refCountOperatorFunction(source) {\n return source.lift(new RefCountOperator(source));\n };\n}\nclass RefCountOperator {\n constructor(connectable) {\n this.connectable = connectable;\n }\n call(subscriber, source) {\n const { connectable } = this;\n connectable._refCount++;\n const refCounter = new RefCountSubscriber(subscriber, connectable);\n const subscription = source.subscribe(refCounter);\n if (!refCounter.closed) {\n refCounter.connection = connectable.connect();\n }\n return subscription;\n }\n}\nclass RefCountSubscriber extends Subscriber {\n constructor(destination, connectable) {\n super(destination);\n this.connectable = connectable;\n }\n _unsubscribe() {\n const { connectable } = this;\n if (!connectable) {\n this.connection = null;\n return;\n }\n this.connectable = null;\n const refCount = connectable._refCount;\n if (refCount <= 0) {\n this.connection = null;\n return;\n }\n connectable._refCount = refCount - 1;\n if (refCount > 1) {\n this.connection = null;\n return;\n }\n const { connection } = this;\n const sharedConnection = connectable._connection;\n this.connection = null;\n if (sharedConnection && (!connection || sharedConnection === connection)) {\n sharedConnection.unsubscribe();\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nexport function scan(accumulator, seed) {\n let hasSeed = false;\n if (arguments.length >= 2) {\n hasSeed = true;\n }\n return function scanOperatorFunction(source) {\n return source.lift(new ScanOperator(accumulator, seed, hasSeed));\n };\n}\nclass ScanOperator {\n constructor(accumulator, seed, hasSeed = false) {\n this.accumulator = accumulator;\n this.seed = seed;\n this.hasSeed = hasSeed;\n }\n call(subscriber, source) {\n return source.subscribe(new ScanSubscriber(subscriber, this.accumulator, this.seed, this.hasSeed));\n }\n}\nclass ScanSubscriber extends Subscriber {\n constructor(destination, accumulator, _seed, hasSeed) {\n super(destination);\n this.accumulator = accumulator;\n this._seed = _seed;\n this.hasSeed = hasSeed;\n this.index = 0;\n }\n get seed() {\n return this._seed;\n }\n set seed(value) {\n this.hasSeed = true;\n this._seed = value;\n }\n _next(value) {\n if (!this.hasSeed) {\n this.seed = value;\n this.destination.next(value);\n }\n else {\n return this._tryNext(value);\n }\n }\n _tryNext(value) {\n const index = this.index++;\n let result;\n try {\n result = this.accumulator(this.seed, value, index);\n }\n catch (err) {\n this.destination.error(err);\n }\n this.seed = result;\n this.destination.next(result);\n }\n}\n","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n return new Subject();\n}\nexport function share() {\n return (source) => refCount()(multicast(shareSubjectFactory)(source));\n}\n","import { ReplaySubject } from '../ReplaySubject';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n let config;\n if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n config = configOrBufferSize;\n }\n else {\n config = {\n bufferSize: configOrBufferSize,\n windowTime,\n refCount: false,\n scheduler,\n };\n }\n return (source) => source.lift(shareReplayOperator(config));\n}\nfunction shareReplayOperator({ bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, refCount: useRefCount, scheduler, }) {\n let subject;\n let refCount = 0;\n let subscription;\n let hasError = false;\n let isComplete = false;\n return function shareReplayOperation(source) {\n refCount++;\n let innerSub;\n if (!subject || hasError) {\n hasError = false;\n subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n innerSub = subject.subscribe(this);\n subscription = source.subscribe({\n next(value) {\n subject.next(value);\n },\n error(err) {\n hasError = true;\n subject.error(err);\n },\n complete() {\n isComplete = true;\n subscription = undefined;\n subject.complete();\n },\n });\n if (isComplete) {\n subscription = undefined;\n }\n }\n else {\n innerSub = subject.subscribe(this);\n }\n this.add(() => {\n refCount--;\n innerSub.unsubscribe();\n innerSub = undefined;\n if (subscription && !isComplete && useRefCount && refCount === 0) {\n subscription.unsubscribe();\n subscription = undefined;\n subject = undefined;\n }\n });\n };\n}\n","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith(...array) {\n const scheduler = array[array.length - 1];\n if (isScheduler(scheduler)) {\n array.pop();\n return (source) => concat(array, source, scheduler);\n }\n else {\n return (source) => concat(array, source);\n }\n}\n","import { map } from './map';\nimport { from } from '../observable/from';\nimport { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';\nexport function switchMap(project, resultSelector) {\n if (typeof resultSelector === 'function') {\n return (source) => source.pipe(switchMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));\n }\n return (source) => source.lift(new SwitchMapOperator(project));\n}\nclass SwitchMapOperator {\n constructor(project) {\n this.project = project;\n }\n call(subscriber, source) {\n return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));\n }\n}\nclass SwitchMapSubscriber extends SimpleOuterSubscriber {\n constructor(destination, project) {\n super(destination);\n this.project = project;\n this.index = 0;\n }\n _next(value) {\n let result;\n const index = this.index++;\n try {\n result = this.project(value, index);\n }\n catch (error) {\n this.destination.error(error);\n return;\n }\n this._innerSub(result);\n }\n _innerSub(result) {\n const innerSubscription = this.innerSubscription;\n if (innerSubscription) {\n innerSubscription.unsubscribe();\n }\n const innerSubscriber = new SimpleInnerSubscriber(this);\n const destination = this.destination;\n destination.add(innerSubscriber);\n this.innerSubscription = innerSubscribe(result, innerSubscriber);\n if (this.innerSubscription !== innerSubscriber) {\n destination.add(this.innerSubscription);\n }\n }\n _complete() {\n const { innerSubscription } = this;\n if (!innerSubscription || innerSubscription.closed) {\n super._complete();\n }\n this.unsubscribe();\n }\n _unsubscribe() {\n this.innerSubscription = undefined;\n }\n notifyComplete() {\n this.innerSubscription = undefined;\n if (this.isStopped) {\n super._complete();\n }\n }\n notifyNext(innerValue) {\n this.destination.next(innerValue);\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { empty } from '../observable/empty';\nexport function take(count) {\n return (source) => {\n if (count === 0) {\n return empty();\n }\n else {\n return source.lift(new TakeOperator(count));\n }\n };\n}\nclass TakeOperator {\n constructor(total) {\n this.total = total;\n if (this.total < 0) {\n throw new ArgumentOutOfRangeError;\n }\n }\n call(subscriber, source) {\n return source.subscribe(new TakeSubscriber(subscriber, this.total));\n }\n}\nclass TakeSubscriber extends Subscriber {\n constructor(destination, total) {\n super(destination);\n this.total = total;\n this.count = 0;\n }\n _next(value) {\n const total = this.total;\n const count = ++this.count;\n if (count <= total) {\n this.destination.next(value);\n if (count === total) {\n this.destination.complete();\n this.unsubscribe();\n }\n }\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { empty } from '../observable/empty';\nexport function takeLast(count) {\n return function takeLastOperatorFunction(source) {\n if (count === 0) {\n return empty();\n }\n else {\n return source.lift(new TakeLastOperator(count));\n }\n };\n}\nclass TakeLastOperator {\n constructor(total) {\n this.total = total;\n if (this.total < 0) {\n throw new ArgumentOutOfRangeError;\n }\n }\n call(subscriber, source) {\n return source.subscribe(new TakeLastSubscriber(subscriber, this.total));\n }\n}\nclass TakeLastSubscriber extends Subscriber {\n constructor(destination, total) {\n super(destination);\n this.total = total;\n this.ring = new Array();\n this.count = 0;\n }\n _next(value) {\n const ring = this.ring;\n const total = this.total;\n const count = this.count++;\n if (ring.length < total) {\n ring.push(value);\n }\n else {\n const index = count % total;\n ring[index] = value;\n }\n }\n _complete() {\n const destination = this.destination;\n let count = this.count;\n if (count > 0) {\n const total = this.count >= this.total ? this.total : this.count;\n const ring = this.ring;\n for (let i = 0; i < total; i++) {\n const idx = (count++) % total;\n destination.next(ring[idx]);\n }\n }\n destination.complete();\n }\n}\n","import { innerSubscribe, SimpleInnerSubscriber, SimpleOuterSubscriber } from '../innerSubscribe';\nexport function takeUntil(notifier) {\n return (source) => source.lift(new TakeUntilOperator(notifier));\n}\nclass TakeUntilOperator {\n constructor(notifier) {\n this.notifier = notifier;\n }\n call(subscriber, source) {\n const takeUntilSubscriber = new TakeUntilSubscriber(subscriber);\n const notifierSubscription = innerSubscribe(this.notifier, new SimpleInnerSubscriber(takeUntilSubscriber));\n if (notifierSubscription && !takeUntilSubscriber.seenValue) {\n takeUntilSubscriber.add(notifierSubscription);\n return source.subscribe(takeUntilSubscriber);\n }\n return takeUntilSubscriber;\n }\n}\nclass TakeUntilSubscriber extends SimpleOuterSubscriber {\n constructor(destination) {\n super(destination);\n this.seenValue = false;\n }\n notifyNext() {\n this.seenValue = true;\n this.complete();\n }\n notifyComplete() {\n }\n}\n","import { Subscriber } from '../Subscriber';\nimport { noop } from '../util/noop';\nimport { isFunction } from '../util/isFunction';\nexport function tap(nextOrObserver, error, complete) {\n return function tapOperatorFunction(source) {\n return source.lift(new DoOperator(nextOrObserver, error, complete));\n };\n}\nclass DoOperator {\n constructor(nextOrObserver, error, complete) {\n this.nextOrObserver = nextOrObserver;\n this.error = error;\n this.complete = complete;\n }\n call(subscriber, source) {\n return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));\n }\n}\nclass TapSubscriber extends Subscriber {\n constructor(destination, observerOrNext, error, complete) {\n super(destination);\n this._tapNext = noop;\n this._tapError = noop;\n this._tapComplete = noop;\n this._tapError = error || noop;\n this._tapComplete = complete || noop;\n if (isFunction(observerOrNext)) {\n this._context = this;\n this._tapNext = observerOrNext;\n }\n else if (observerOrNext) {\n this._context = observerOrNext;\n this._tapNext = observerOrNext.next || noop;\n this._tapError = observerOrNext.error || noop;\n this._tapComplete = observerOrNext.complete || noop;\n }\n }\n _next(value) {\n try {\n this._tapNext.call(this._context, value);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.next(value);\n }\n _error(err) {\n try {\n this._tapError.call(this._context, err);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n this.destination.error(err);\n }\n _complete() {\n try {\n this._tapComplete.call(this._context);\n }\n catch (err) {\n this.destination.error(err);\n return;\n }\n return this.destination.complete();\n }\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { Subscriber } from '../Subscriber';\nexport function throwIfEmpty(errorFactory = defaultErrorFactory) {\n return (source) => {\n return source.lift(new ThrowIfEmptyOperator(errorFactory));\n };\n}\nclass ThrowIfEmptyOperator {\n constructor(errorFactory) {\n this.errorFactory = errorFactory;\n }\n call(subscriber, source) {\n return source.subscribe(new ThrowIfEmptySubscriber(subscriber, this.errorFactory));\n }\n}\nclass ThrowIfEmptySubscriber extends Subscriber {\n constructor(destination, errorFactory) {\n super(destination);\n this.errorFactory = errorFactory;\n this.hasValue = false;\n }\n _next(value) {\n this.hasValue = true;\n this.destination.next(value);\n }\n _complete() {\n if (!this.hasValue) {\n let err;\n try {\n err = this.errorFactory();\n }\n catch (e) {\n err = e;\n }\n this.destination.error(err);\n }\n else {\n return this.destination.complete();\n }\n }\n}\nfunction defaultErrorFactory() {\n return new EmptyError();\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n let i = 0;\n sub.add(scheduler.schedule(function () {\n if (i === input.length) {\n subscriber.complete();\n return;\n }\n subscriber.next(input[i++]);\n if (!subscriber.closed) {\n sub.add(this.schedule());\n }\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(subscriber => {\n const sub = new Subscription();\n let iterator;\n sub.add(() => {\n if (iterator && typeof iterator.return === 'function') {\n iterator.return();\n }\n });\n sub.add(scheduler.schedule(() => {\n iterator = input[Symbol_iterator]();\n sub.add(scheduler.schedule(function () {\n if (subscriber.closed) {\n return;\n }\n let value;\n let done;\n try {\n const result = iterator.next();\n value = result.value;\n done = result.done;\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (done) {\n subscriber.complete();\n }\n else {\n subscriber.next(value);\n this.schedule();\n }\n }));\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n sub.add(scheduler.schedule(() => {\n const observable = input[Symbol_observable]();\n sub.add(observable.subscribe({\n next(value) { sub.add(scheduler.schedule(() => subscriber.next(value))); },\n error(err) { sub.add(scheduler.schedule(() => subscriber.error(err))); },\n complete() { sub.add(scheduler.schedule(() => subscriber.complete())); },\n }));\n }));\n return sub;\n });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n return new Observable(subscriber => {\n const sub = new Subscription();\n sub.add(scheduler.schedule(() => input.then(value => {\n sub.add(scheduler.schedule(() => {\n subscriber.next(value);\n sub.add(scheduler.schedule(() => subscriber.complete()));\n }));\n }, err => {\n sub.add(scheduler.schedule(() => subscriber.error(err)));\n })));\n return sub;\n });\n}\n","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nexport function scheduled(input, scheduler) {\n if (input != null) {\n if (isInteropObservable(input)) {\n return scheduleObservable(input, scheduler);\n }\n else if (isPromise(input)) {\n return schedulePromise(input, scheduler);\n }\n else if (isArrayLike(input)) {\n return scheduleArray(input, scheduler);\n }\n else if (isIterable(input) || typeof input === 'string') {\n return scheduleIterable(input, scheduler);\n }\n }\n throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n","import { Subscription } from '../Subscription';\nexport class Action extends Subscription {\n constructor(scheduler, work) {\n super();\n }\n schedule(state, delay = 0) {\n return this;\n }\n}\n","import { AsyncAction } from './AsyncAction';\nexport class AnimationFrameAction extends AsyncAction {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n }\n requestAsyncId(scheduler, id, delay = 0) {\n if (delay !== null && delay > 0) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n scheduler.actions.push(this);\n return scheduler.scheduled || (scheduler.scheduled = requestAnimationFrame(() => scheduler.flush(null)));\n }\n recycleAsyncId(scheduler, id, delay = 0) {\n if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n return super.recycleAsyncId(scheduler, id, delay);\n }\n if (scheduler.actions.length === 0) {\n cancelAnimationFrame(id);\n scheduler.scheduled = undefined;\n }\n return undefined;\n }\n}\n","import { AsyncScheduler } from './AsyncScheduler';\nexport class AnimationFrameScheduler extends AsyncScheduler {\n flush(action) {\n this.active = true;\n this.scheduled = undefined;\n const { actions } = this;\n let error;\n let index = -1;\n let count = actions.length;\n action = action || actions.shift();\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (++index < count && (action = actions.shift()));\n this.active = false;\n if (error) {\n while (++index < count && (action = actions.shift())) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n","import { Immediate } from '../util/Immediate';\nimport { AsyncAction } from './AsyncAction';\nexport class AsapAction extends AsyncAction {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n }\n requestAsyncId(scheduler, id, delay = 0) {\n if (delay !== null && delay > 0) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n scheduler.actions.push(this);\n return scheduler.scheduled || (scheduler.scheduled = Immediate.setImmediate(scheduler.flush.bind(scheduler, null)));\n }\n recycleAsyncId(scheduler, id, delay = 0) {\n if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n return super.recycleAsyncId(scheduler, id, delay);\n }\n if (scheduler.actions.length === 0) {\n Immediate.clearImmediate(id);\n scheduler.scheduled = undefined;\n }\n return undefined;\n }\n}\n","import { AsyncScheduler } from './AsyncScheduler';\nexport class AsapScheduler extends AsyncScheduler {\n flush(action) {\n this.active = true;\n this.scheduled = undefined;\n const { actions } = this;\n let error;\n let index = -1;\n let count = actions.length;\n action = action || actions.shift();\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (++index < count && (action = actions.shift()));\n this.active = false;\n if (error) {\n while (++index < count && (action = actions.shift())) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n","import { Action } from './Action';\nexport class AsyncAction extends Action {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n this.pending = false;\n }\n schedule(state, delay = 0) {\n if (this.closed) {\n return this;\n }\n this.state = state;\n const id = this.id;\n const scheduler = this.scheduler;\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n this.pending = true;\n this.delay = delay;\n this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n return this;\n }\n requestAsyncId(scheduler, id, delay = 0) {\n return setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n recycleAsyncId(scheduler, id, delay = 0) {\n if (delay !== null && this.delay === delay && this.pending === false) {\n return id;\n }\n clearInterval(id);\n return undefined;\n }\n execute(state, delay) {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n }\n else if (this.pending === false && this.id != null) {\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n _execute(state, delay) {\n let errored = false;\n let errorValue = undefined;\n try {\n this.work(state);\n }\n catch (e) {\n errored = true;\n errorValue = !!e && e || new Error(e);\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n _unsubscribe() {\n const id = this.id;\n const scheduler = this.scheduler;\n const actions = scheduler.actions;\n const index = actions.indexOf(this);\n this.work = null;\n this.state = null;\n this.pending = false;\n this.scheduler = null;\n if (index !== -1) {\n actions.splice(index, 1);\n }\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n this.delay = null;\n }\n}\n","import { Scheduler } from '../Scheduler';\nexport class AsyncScheduler extends Scheduler {\n constructor(SchedulerAction, now = Scheduler.now) {\n super(SchedulerAction, () => {\n if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n return AsyncScheduler.delegate.now();\n }\n else {\n return now();\n }\n });\n this.actions = [];\n this.active = false;\n this.scheduled = undefined;\n }\n schedule(work, delay = 0, state) {\n if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n return AsyncScheduler.delegate.schedule(work, delay, state);\n }\n else {\n return super.schedule(work, delay, state);\n }\n }\n flush(action) {\n const { actions } = this;\n if (this.active) {\n actions.push(action);\n return;\n }\n let error;\n this.active = true;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (action = actions.shift());\n this.active = false;\n if (error) {\n while (action = actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n","import { AsyncAction } from './AsyncAction';\nexport class QueueAction extends AsyncAction {\n constructor(scheduler, work) {\n super(scheduler, work);\n this.scheduler = scheduler;\n this.work = work;\n }\n schedule(state, delay = 0) {\n if (delay > 0) {\n return super.schedule(state, delay);\n }\n this.delay = delay;\n this.state = state;\n this.scheduler.flush(this);\n return this;\n }\n execute(state, delay) {\n return (delay > 0 || this.closed) ?\n super.execute(state, delay) :\n this._execute(state, delay);\n }\n requestAsyncId(scheduler, id, delay = 0) {\n if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n return scheduler.flush(this);\n }\n}\n","import { AsyncScheduler } from './AsyncScheduler';\nexport class QueueScheduler extends AsyncScheduler {\n}\n","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport const animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\nexport const animationFrame = animationFrameScheduler;\n","import { AsapAction } from './AsapAction';\nimport { AsapScheduler } from './AsapScheduler';\nexport const asapScheduler = new AsapScheduler(AsapAction);\nexport const asap = asapScheduler;\n","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\nexport const async = asyncScheduler;\n","import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\nexport const queueScheduler = new QueueScheduler(QueueAction);\nexport const queue = queueScheduler;\n","export function getSymbolIterator() {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator';\n }\n return Symbol.iterator;\n}\nexport const iterator = getSymbolIterator();\nexport const $$iterator = iterator;\n","export const observable = (() => typeof Symbol === 'function' && Symbol.observable || '@@observable')();\n","export const rxSubscriber = (() => typeof Symbol === 'function'\n ? Symbol('rxSubscriber')\n : '@@rxSubscriber_' + Math.random())();\nexport const $$rxSubscriber = rxSubscriber;\n","const ArgumentOutOfRangeErrorImpl = (() => {\n function ArgumentOutOfRangeErrorImpl() {\n Error.call(this);\n this.message = 'argument out of range';\n this.name = 'ArgumentOutOfRangeError';\n return this;\n }\n ArgumentOutOfRangeErrorImpl.prototype = Object.create(Error.prototype);\n return ArgumentOutOfRangeErrorImpl;\n})();\nexport const ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;\n","const EmptyErrorImpl = (() => {\n function EmptyErrorImpl() {\n Error.call(this);\n this.message = 'no elements in sequence';\n this.name = 'EmptyError';\n return this;\n }\n EmptyErrorImpl.prototype = Object.create(Error.prototype);\n return EmptyErrorImpl;\n})();\nexport const EmptyError = EmptyErrorImpl;\n","let nextHandle = 1;\nconst RESOLVED = (() => Promise.resolve())();\nconst activeHandles = {};\nfunction findAndClearHandle(handle) {\n if (handle in activeHandles) {\n delete activeHandles[handle];\n return true;\n }\n return false;\n}\nexport const Immediate = {\n setImmediate(cb) {\n const handle = nextHandle++;\n activeHandles[handle] = true;\n RESOLVED.then(() => findAndClearHandle(handle) && cb());\n return handle;\n },\n clearImmediate(handle) {\n findAndClearHandle(handle);\n },\n};\nexport const TestTools = {\n pending() {\n return Object.keys(activeHandles).length;\n }\n};\n","const ObjectUnsubscribedErrorImpl = (() => {\n function ObjectUnsubscribedErrorImpl() {\n Error.call(this);\n this.message = 'object unsubscribed';\n this.name = 'ObjectUnsubscribedError';\n return this;\n }\n ObjectUnsubscribedErrorImpl.prototype = Object.create(Error.prototype);\n return ObjectUnsubscribedErrorImpl;\n})();\nexport const ObjectUnsubscribedError = ObjectUnsubscribedErrorImpl;\n","const UnsubscriptionErrorImpl = (() => {\n function UnsubscriptionErrorImpl(errors) {\n Error.call(this);\n this.message = errors ?\n `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n ')}` : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n return this;\n }\n UnsubscriptionErrorImpl.prototype = Object.create(Error.prototype);\n return UnsubscriptionErrorImpl;\n})();\nexport const UnsubscriptionError = UnsubscriptionErrorImpl;\n","import { Subscriber } from '../Subscriber';\nexport function canReportError(observer) {\n while (observer) {\n const { closed, destination, isStopped } = observer;\n if (closed || isStopped) {\n return false;\n }\n else if (destination && destination instanceof Subscriber) {\n observer = destination;\n }\n else {\n observer = null;\n }\n }\n return true;\n}\n","export function hostReportError(err) {\n setTimeout(() => { throw err; }, 0);\n}\n","export function identity(x) {\n return x;\n}\n","export const isArray = (() => Array.isArray || ((x) => x && typeof x.length === 'number'))();\n","export const isArrayLike = ((x) => x && typeof x.length === 'number' && typeof x !== 'function');\n","export function isFunction(x) {\n return typeof x === 'function';\n}\n","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n return input && typeof input[Symbol_observable] === 'function';\n}\n","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n return input && typeof input[Symbol_iterator] === 'function';\n}\n","import { isArray } from './isArray';\nexport function isNumeric(val) {\n return !isArray(val) && (val - parseFloat(val) + 1) >= 0;\n}\n","export function isObject(x) {\n return x !== null && typeof x === 'object';\n}\n","import { Observable } from '../Observable';\nexport function isObservable(obj) {\n return !!obj && (obj instanceof Observable || (typeof obj.lift === 'function' && typeof obj.subscribe === 'function'));\n}\n","export function isPromise(value) {\n return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n","export function isScheduler(value) {\n return value && typeof value.schedule === 'function';\n}\n","export function noop() { }\n","import { identity } from './identity';\nexport function pipe(...fns) {\n return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n if (fns.length === 0) {\n return identity;\n }\n if (fns.length === 1) {\n return fns[0];\n }\n return function piped(input) {\n return fns.reduce((prev, fn) => fn(prev), input);\n };\n}\n","import { subscribeToArray } from './subscribeToArray';\nimport { subscribeToPromise } from './subscribeToPromise';\nimport { subscribeToIterable } from './subscribeToIterable';\nimport { subscribeToObservable } from './subscribeToObservable';\nimport { isArrayLike } from './isArrayLike';\nimport { isPromise } from './isPromise';\nimport { isObject } from './isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeTo = (result) => {\n if (!!result && typeof result[Symbol_observable] === 'function') {\n return subscribeToObservable(result);\n }\n else if (isArrayLike(result)) {\n return subscribeToArray(result);\n }\n else if (isPromise(result)) {\n return subscribeToPromise(result);\n }\n else if (!!result && typeof result[Symbol_iterator] === 'function') {\n return subscribeToIterable(result);\n }\n else {\n const value = isObject(result) ? 'an invalid object' : `'${result}'`;\n const msg = `You provided ${value} where a stream was expected.`\n + ' You can provide an Observable, Promise, Array, or Iterable.';\n throw new TypeError(msg);\n }\n};\n","export const subscribeToArray = (array) => (subscriber) => {\n for (let i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n subscriber.next(array[i]);\n }\n subscriber.complete();\n};\n","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport const subscribeToIterable = (iterable) => (subscriber) => {\n const iterator = iterable[Symbol_iterator]();\n do {\n let item;\n try {\n item = iterator.next();\n }\n catch (err) {\n subscriber.error(err);\n return subscriber;\n }\n if (item.done) {\n subscriber.complete();\n break;\n }\n subscriber.next(item.value);\n if (subscriber.closed) {\n break;\n }\n } while (true);\n if (typeof iterator.return === 'function') {\n subscriber.add(() => {\n if (iterator.return) {\n iterator.return();\n }\n });\n }\n return subscriber;\n};\n","import { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeToObservable = (obj) => (subscriber) => {\n const obs = obj[Symbol_observable]();\n if (typeof obs.subscribe !== 'function') {\n throw new TypeError('Provided object does not correctly implement Symbol.observable');\n }\n else {\n return obs.subscribe(subscriber);\n }\n};\n","import { hostReportError } from './hostReportError';\nexport const subscribeToPromise = (promise) => (subscriber) => {\n promise.then((value) => {\n if (!subscriber.closed) {\n subscriber.next(value);\n subscriber.complete();\n }\n }, (err) => subscriber.error(err))\n .then(null, hostReportError);\n return subscriber;\n};\n","import { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeTo } from './subscribeTo';\nimport { Observable } from '../Observable';\nexport function subscribeToResult(outerSubscriber, result, outerValue, outerIndex, innerSubscriber = new InnerSubscriber(outerSubscriber, outerValue, outerIndex)) {\n if (innerSubscriber.closed) {\n return undefined;\n }\n if (result instanceof Observable) {\n return result.subscribe(innerSubscriber);\n }\n return subscribeTo(result)(innerSubscriber);\n}\n","import { Subscriber } from '../Subscriber';\nimport { rxSubscriber as rxSubscriberSymbol } from '../symbol/rxSubscriber';\nimport { empty as emptyObserver } from '../Observer';\nexport function toSubscriber(nextOrObserver, error, complete) {\n if (nextOrObserver) {\n if (nextOrObserver instanceof Subscriber) {\n return nextOrObserver;\n }\n if (nextOrObserver[rxSubscriberSymbol]) {\n return nextOrObserver[rxSubscriberSymbol]();\n }\n }\n if (!nextOrObserver && !error && !complete) {\n return new Subscriber(emptyObserver);\n }\n return new Subscriber(nextOrObserver, error, complete);\n}\n","import { __extends } from 'tslib';\n\nvar genericMessage = \"Invariant Violation\";\r\nvar _a = Object.setPrototypeOf, setPrototypeOf = _a === void 0 ? function (obj, proto) {\r\n obj.__proto__ = proto;\r\n return obj;\r\n} : _a;\r\nvar InvariantError = /** @class */ (function (_super) {\r\n __extends(InvariantError, _super);\r\n function InvariantError(message) {\r\n if (message === void 0) { message = genericMessage; }\r\n var _this = _super.call(this, typeof message === \"number\"\r\n ? genericMessage + \": \" + message + \" (see https://github.com/apollographql/invariant-packages)\"\r\n : message) || this;\r\n _this.framesToPop = 1;\r\n _this.name = genericMessage;\r\n setPrototypeOf(_this, InvariantError.prototype);\r\n return _this;\r\n }\r\n return InvariantError;\r\n}(Error));\r\nfunction invariant(condition, message) {\r\n if (!condition) {\r\n throw new InvariantError(message);\r\n }\r\n}\r\nvar verbosityLevels = [\"debug\", \"log\", \"warn\", \"error\", \"silent\"];\r\nvar verbosityLevel = verbosityLevels.indexOf(\"log\");\r\nfunction wrapConsoleMethod(name) {\r\n return function () {\r\n if (verbosityLevels.indexOf(name) >= verbosityLevel) {\r\n // Default to console.log if this host environment happens not to provide\r\n // all the console.* methods we need.\r\n var method = console[name] || console.log;\r\n return method.apply(console, arguments);\r\n }\r\n };\r\n}\r\n(function (invariant) {\r\n invariant.debug = wrapConsoleMethod(\"debug\");\r\n invariant.log = wrapConsoleMethod(\"log\");\r\n invariant.warn = wrapConsoleMethod(\"warn\");\r\n invariant.error = wrapConsoleMethod(\"error\");\r\n})(invariant || (invariant = {}));\r\nfunction setVerbosity(level) {\r\n var old = verbosityLevels[verbosityLevel];\r\n verbosityLevel = Math.max(0, verbosityLevels.indexOf(level));\r\n return old;\r\n}\r\nvar invariant$1 = invariant;\n\nexport { InvariantError, invariant$1 as default, invariant, setVerbosity };\n","function maybe(thunk) {\n try { return thunk() } catch (_) {}\n}\n\nvar safeGlobal = (\n maybe(function() { return globalThis }) ||\n maybe(function() { return window }) ||\n maybe(function() { return self }) ||\n maybe(function() { return global }) ||\n // We don't expect the Function constructor ever to be invoked at runtime, as\n // long as at least one of globalThis, window, self, or global is defined, so\n // we are under no obligation to make it easy for static analysis tools to\n // detect syntactic usage of the Function constructor. If you think you can\n // improve your static analysis to detect this obfuscation, think again. This\n // is an arms race you cannot win, at least not in JavaScript.\n maybe(function() { return maybe.constructor(\"return this\")() })\n);\n\nvar needToRemove = false;\n\nexport function install() {\n if (safeGlobal &&\n !maybe(function() { return process.env.NODE_ENV }) &&\n !maybe(function() { return process })) {\n Object.defineProperty(safeGlobal, \"process\", {\n value: {\n env: {\n // This default needs to be \"production\" instead of \"development\", to\n // avoid the problem https://github.com/graphql/graphql-js/pull/2894\n // will eventually solve, once merged and released.\n NODE_ENV: \"production\",\n },\n },\n // Let anyone else change global.process as they see fit, but hide it from\n // Object.keys(global) enumeration.\n configurable: true,\n enumerable: false,\n writable: true,\n });\n needToRemove = true;\n }\n}\n\n// Call install() at least once, when this module is imported.\ninstall();\n\nexport function remove() {\n if (needToRemove) {\n delete safeGlobal.process;\n needToRemove = false;\n }\n}\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 ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\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) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n if (ar || !(i in from)) {\r\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n ar[i] = from[i];\r\n }\r\n }\r\n return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (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","/**\n * @license Angular v13.2.6\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\n/**\n * An injectable service that produces an animation sequence programmatically within an\n * Angular component or directive.\n * Provided by the `BrowserAnimationsModule` or `NoopAnimationsModule`.\n *\n * @usageNotes\n *\n * To use this service, add it to your component or directive as a dependency.\n * The service is instantiated along with your component.\n *\n * Apps do not typically need to create their own animation players, but if you\n * do need to, follow these steps:\n *\n * 1. Use the [AnimationBuilder.build](api/animations/AnimationBuilder#build)() method\n * to create a programmatic animation. The method returns an `AnimationFactory` instance.\n *\n * 2. Use the factory object to create an `AnimationPlayer` and attach it to a DOM element.\n *\n * 3. Use the player object to control the animation programmatically.\n *\n * For example:\n *\n * ```ts\n * // import the service from BrowserAnimationsModule\n * import {AnimationBuilder} from '@angular/animations';\n * // require the service as a dependency\n * class MyCmp {\n * constructor(private _builder: AnimationBuilder) {}\n *\n * makeAnimation(element: any) {\n * // first define a reusable animation\n * const myAnimation = this._builder.build([\n * style({ width: 0 }),\n * animate(1000, style({ width: '100px' }))\n * ]);\n *\n * // use the returned factory object to create a player\n * const player = myAnimation.create(element);\n *\n * player.play();\n * }\n * }\n * ```\n *\n * @publicApi\n */\nclass AnimationBuilder {\n}\n/**\n * A factory object returned from the\n * [AnimationBuilder.build](api/animations/AnimationBuilder#build)()\n * method.\n *\n * @publicApi\n */\nclass AnimationFactory {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Specifies automatic styling.\n *\n * @publicApi\n */\nconst AUTO_STYLE = '*';\n/**\n * Creates a named animation trigger, containing a list of [`state()`](api/animations/state)\n * and `transition()` entries to be evaluated when the expression\n * bound to the trigger changes.\n *\n * @param name An identifying string.\n * @param definitions An animation definition object, containing an array of\n * [`state()`](api/animations/state) and `transition()` declarations.\n *\n * @return An object that encapsulates the trigger data.\n *\n * @usageNotes\n * Define an animation trigger in the `animations` section of `@Component` metadata.\n * In the template, reference the trigger by name and bind it to a trigger expression that\n * evaluates to a defined animation state, using the following format:\n *\n * `[@triggerName]=\"expression\"`\n *\n * Animation trigger bindings convert all values to strings, and then match the\n * previous and current values against any linked transitions.\n * Booleans can be specified as `1` or `true` and `0` or `false`.\n *\n * ### Usage Example\n *\n * The following example creates an animation trigger reference based on the provided\n * name value.\n * The provided animation value is expected to be an array consisting of state and\n * transition declarations.\n *\n * ```typescript\n * @Component({\n * selector: \"my-component\",\n * templateUrl: \"my-component-tpl.html\",\n * animations: [\n * trigger(\"myAnimationTrigger\", [\n * state(...),\n * state(...),\n * transition(...),\n * transition(...)\n * ])\n * ]\n * })\n * class MyComponent {\n * myStatusExp = \"something\";\n * }\n * ```\n *\n * The template associated with this component makes use of the defined trigger\n * by binding to an element within its template code.\n *\n * ```html\n * \n * ...
\n * ```\n *\n * ### Using an inline function\n * The `transition` animation method also supports reading an inline function which can decide\n * if its associated animation should be run.\n *\n * ```typescript\n * // this method is run each time the `myAnimationTrigger` trigger value changes.\n * function myInlineMatcherFn(fromState: string, toState: string, element: any, params: {[key:\n string]: any}): boolean {\n * // notice that `element` and `params` are also available here\n * return toState == 'yes-please-animate';\n * }\n *\n * @Component({\n * selector: 'my-component',\n * templateUrl: 'my-component-tpl.html',\n * animations: [\n * trigger('myAnimationTrigger', [\n * transition(myInlineMatcherFn, [\n * // the animation sequence code\n * ]),\n * ])\n * ]\n * })\n * class MyComponent {\n * myStatusExp = \"yes-please-animate\";\n * }\n * ```\n *\n * ### Disabling Animations\n * When true, the special animation control binding `@.disabled` binding prevents\n * all animations from rendering.\n * Place the `@.disabled` binding on an element to disable\n * animations on the element itself, as well as any inner animation triggers\n * within the element.\n *\n * The following example shows how to use this feature:\n *\n * ```typescript\n * @Component({\n * selector: 'my-component',\n * template: `\n * \n * `,\n * animations: [\n * trigger(\"childAnimation\", [\n * // ...\n * ])\n * ]\n * })\n * class MyComponent {\n * isDisabled = true;\n * exp = '...';\n * }\n * ```\n *\n * When `@.disabled` is true, it prevents the `@childAnimation` trigger from animating,\n * along with any inner animations.\n *\n * ### Disable animations application-wide\n * When an area of the template is set to have animations disabled,\n * **all** inner components have their animations disabled as well.\n * This means that you can disable all animations for an app\n * by placing a host binding set on `@.disabled` on the topmost Angular component.\n *\n * ```typescript\n * import {Component, HostBinding} from '@angular/core';\n *\n * @Component({\n * selector: 'app-component',\n * templateUrl: 'app.component.html',\n * })\n * class AppComponent {\n * @HostBinding('@.disabled')\n * public animationsDisabled = true;\n * }\n * ```\n *\n * ### Overriding disablement of inner animations\n * Despite inner animations being disabled, a parent animation can `query()`\n * for inner elements located in disabled areas of the template and still animate\n * them if needed. This is also the case for when a sub animation is\n * queried by a parent and then later animated using `animateChild()`.\n *\n * ### Detecting when an animation is disabled\n * If a region of the DOM (or the entire application) has its animations disabled, the animation\n * trigger callbacks still fire, but for zero seconds. When the callback fires, it provides\n * an instance of an `AnimationEvent`. If animations are disabled,\n * the `.disabled` flag on the event is true.\n *\n * @publicApi\n */\nfunction trigger(name, definitions) {\n return { type: 7 /* Trigger */, name, definitions, options: {} };\n}\n/**\n * Defines an animation step that combines styling information with timing information.\n *\n * @param timings Sets `AnimateTimings` for the parent animation.\n * A string in the format \"duration [delay] [easing]\".\n * - Duration and delay are expressed as a number and optional time unit,\n * such as \"1s\" or \"10ms\" for one second and 10 milliseconds, respectively.\n * The default unit is milliseconds.\n * - The easing value controls how the animation accelerates and decelerates\n * during its runtime. Value is one of `ease`, `ease-in`, `ease-out`,\n * `ease-in-out`, or a `cubic-bezier()` function call.\n * If not supplied, no easing is applied.\n *\n * For example, the string \"1s 100ms ease-out\" specifies a duration of\n * 1000 milliseconds, and delay of 100 ms, and the \"ease-out\" easing style,\n * which decelerates near the end of the duration.\n * @param styles Sets AnimationStyles for the parent animation.\n * A function call to either `style()` or `keyframes()`\n * that returns a collection of CSS style entries to be applied to the parent animation.\n * When null, uses the styles from the destination state.\n * This is useful when describing an animation step that will complete an animation;\n * see \"Animating to the final state\" in `transitions()`.\n * @returns An object that encapsulates the animation step.\n *\n * @usageNotes\n * Call within an animation `sequence()`, `{@link animations/group group()}`, or\n * `transition()` call to specify an animation step\n * that applies given style data to the parent animation for a given amount of time.\n *\n * ### Syntax Examples\n * **Timing examples**\n *\n * The following examples show various `timings` specifications.\n * - `animate(500)` : Duration is 500 milliseconds.\n * - `animate(\"1s\")` : Duration is 1000 milliseconds.\n * - `animate(\"100ms 0.5s\")` : Duration is 100 milliseconds, delay is 500 milliseconds.\n * - `animate(\"5s ease-in\")` : Duration is 5000 milliseconds, easing in.\n * - `animate(\"5s 10ms cubic-bezier(.17,.67,.88,.1)\")` : Duration is 5000 milliseconds, delay is 10\n * milliseconds, easing according to a bezier curve.\n *\n * **Style examples**\n *\n * The following example calls `style()` to set a single CSS style.\n * ```typescript\n * animate(500, style({ background: \"red\" }))\n * ```\n * The following example calls `keyframes()` to set a CSS style\n * to different values for successive keyframes.\n * ```typescript\n * animate(500, keyframes(\n * [\n * style({ background: \"blue\" }),\n * style({ background: \"red\" })\n * ])\n * ```\n *\n * @publicApi\n */\nfunction animate(timings, styles = null) {\n return { type: 4 /* Animate */, styles, timings };\n}\n/**\n * @description Defines a list of animation steps to be run in parallel.\n *\n * @param steps An array of animation step objects.\n * - When steps are defined by `style()` or `animate()`\n * function calls, each call within the group is executed instantly.\n * - To specify offset styles to be applied at a later time, define steps with\n * `keyframes()`, or use `animate()` calls with a delay value.\n * For example:\n *\n * ```typescript\n * group([\n * animate(\"1s\", style({ background: \"black\" })),\n * animate(\"2s\", style({ color: \"white\" }))\n * ])\n * ```\n *\n * @param options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return An object that encapsulates the group data.\n *\n * @usageNotes\n * Grouped animations are useful when a series of styles must be\n * animated at different starting times and closed off at different ending times.\n *\n * When called within a `sequence()` or a\n * `transition()` call, does not continue to the next\n * instruction until all of the inner animation steps have completed.\n *\n * @publicApi\n */\nfunction group(steps, options = null) {\n return { type: 3 /* Group */, steps, options };\n}\n/**\n * Defines a list of animation steps to be run sequentially, one by one.\n *\n * @param steps An array of animation step objects.\n * - Steps defined by `style()` calls apply the styling data immediately.\n * - Steps defined by `animate()` calls apply the styling data over time\n * as specified by the timing data.\n *\n * ```typescript\n * sequence([\n * style({ opacity: 0 }),\n * animate(\"1s\", style({ opacity: 1 }))\n * ])\n * ```\n *\n * @param options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return An object that encapsulates the sequence data.\n *\n * @usageNotes\n * When you pass an array of steps to a\n * `transition()` call, the steps run sequentially by default.\n * Compare this to the `{@link animations/group group()}` call, which runs animation steps in\n *parallel.\n *\n * When a sequence is used within a `{@link animations/group group()}` or a `transition()` call,\n * execution continues to the next instruction only after each of the inner animation\n * steps have completed.\n *\n * @publicApi\n **/\nfunction sequence(steps, options = null) {\n return { type: 2 /* Sequence */, steps, options };\n}\n/**\n * Declares a key/value object containing CSS properties/styles that\n * can then be used for an animation [`state`](api/animations/state), within an animation\n *`sequence`, or as styling data for calls to `animate()` and `keyframes()`.\n *\n * @param tokens A set of CSS styles or HTML styles associated with an animation state.\n * The value can be any of the following:\n * - A key-value style pair associating a CSS property with a value.\n * - An array of key-value style pairs.\n * - An asterisk (*), to use auto-styling, where styles are derived from the element\n * being animated and applied to the animation when it starts.\n *\n * Auto-styling can be used to define a state that depends on layout or other\n * environmental factors.\n *\n * @return An object that encapsulates the style data.\n *\n * @usageNotes\n * The following examples create animation styles that collect a set of\n * CSS property values:\n *\n * ```typescript\n * // string values for CSS properties\n * style({ background: \"red\", color: \"blue\" })\n *\n * // numerical pixel values\n * style({ width: 100, height: 0 })\n * ```\n *\n * The following example uses auto-styling to allow an element to animate from\n * a height of 0 up to its full height:\n *\n * ```\n * style({ height: 0 }),\n * animate(\"1s\", style({ height: \"*\" }))\n * ```\n *\n * @publicApi\n **/\nfunction style(tokens) {\n return { type: 6 /* Style */, styles: tokens, offset: null };\n}\n/**\n * Declares an animation state within a trigger attached to an element.\n *\n * @param name One or more names for the defined state in a comma-separated string.\n * The following reserved state names can be supplied to define a style for specific use\n * cases:\n *\n * - `void` You can associate styles with this name to be used when\n * the element is detached from the application. For example, when an `ngIf` evaluates\n * to false, the state of the associated element is void.\n * - `*` (asterisk) Indicates the default state. You can associate styles with this name\n * to be used as the fallback when the state that is being animated is not declared\n * within the trigger.\n *\n * @param styles A set of CSS styles associated with this state, created using the\n * `style()` function.\n * This set of styles persists on the element once the state has been reached.\n * @param options Parameters that can be passed to the state when it is invoked.\n * 0 or more key-value pairs.\n * @return An object that encapsulates the new state data.\n *\n * @usageNotes\n * Use the `trigger()` function to register states to an animation trigger.\n * Use the `transition()` function to animate between states.\n * When a state is active within a component, its associated styles persist on the element,\n * even when the animation ends.\n *\n * @publicApi\n **/\nfunction state(name, styles, options) {\n return { type: 0 /* State */, name, styles, options };\n}\n/**\n * Defines a set of animation styles, associating each style with an optional `offset` value.\n *\n * @param steps A set of animation styles with optional offset data.\n * The optional `offset` value for a style specifies a percentage of the total animation\n * time at which that style is applied.\n * @returns An object that encapsulates the keyframes data.\n *\n * @usageNotes\n * Use with the `animate()` call. Instead of applying animations\n * from the current state\n * to the destination state, keyframes describe how each style entry is applied and at what point\n * within the animation arc.\n * Compare [CSS Keyframe Animations](https://www.w3schools.com/css/css3_animations.asp).\n *\n * ### Usage\n *\n * In the following example, the offset values describe\n * when each `backgroundColor` value is applied. The color is red at the start, and changes to\n * blue when 20% of the total time has elapsed.\n *\n * ```typescript\n * // the provided offset values\n * animate(\"5s\", keyframes([\n * style({ backgroundColor: \"red\", offset: 0 }),\n * style({ backgroundColor: \"blue\", offset: 0.2 }),\n * style({ backgroundColor: \"orange\", offset: 0.3 }),\n * style({ backgroundColor: \"black\", offset: 1 })\n * ]))\n * ```\n *\n * If there are no `offset` values specified in the style entries, the offsets\n * are calculated automatically.\n *\n * ```typescript\n * animate(\"5s\", keyframes([\n * style({ backgroundColor: \"red\" }) // offset = 0\n * style({ backgroundColor: \"blue\" }) // offset = 0.33\n * style({ backgroundColor: \"orange\" }) // offset = 0.66\n * style({ backgroundColor: \"black\" }) // offset = 1\n * ]))\n *```\n\n * @publicApi\n */\nfunction keyframes(steps) {\n return { type: 5 /* Keyframes */, steps };\n}\n/**\n * Declares an animation transition which is played when a certain specified condition is met.\n *\n * @param stateChangeExpr A string with a specific format or a function that specifies when the\n * animation transition should occur (see [State Change Expression](#state-change-expression)).\n *\n * @param steps One or more animation objects that represent the animation's instructions.\n *\n * @param options An options object that can be used to specify a delay for the animation or provide\n * custom parameters for it.\n *\n * @returns An object that encapsulates the transition data.\n *\n * @usageNotes\n *\n * ### State Change Expression\n *\n * The State Change Expression instructs Angular when to run the transition's animations, it can\n *either be\n * - a string with a specific syntax\n * - or a function that compares the previous and current state (value of the expression bound to\n * the element's trigger) and returns `true` if the transition should occur or `false` otherwise\n *\n * The string format can be:\n * - `fromState => toState`, which indicates that the transition's animations should occur then the\n * expression bound to the trigger's element goes from `fromState` to `toState`\n *\n * _Example:_\n * ```typescript\n * transition('open => closed', animate('.5s ease-out', style({ height: 0 }) ))\n * ```\n *\n * - `fromState <=> toState`, which indicates that the transition's animations should occur then\n * the expression bound to the trigger's element goes from `fromState` to `toState` or vice versa\n *\n * _Example:_\n * ```typescript\n * transition('enabled <=> disabled', animate('1s cubic-bezier(0.8,0.3,0,1)'))\n * ```\n *\n * - `:enter`/`:leave`, which indicates that the transition's animations should occur when the\n * element enters or exists the DOM\n *\n * _Example:_\n * ```typescript\n * transition(':enter', [\n * style({ opacity: 0 }),\n * animate('500ms', style({ opacity: 1 }))\n * ])\n * ```\n *\n * - `:increment`/`:decrement`, which indicates that the transition's animations should occur when\n * the numerical expression bound to the trigger's element has increased in value or decreased\n *\n * _Example:_\n * ```typescript\n * transition(':increment', query('@counter', animateChild()))\n * ```\n *\n * - a sequence of any of the above divided by commas, which indicates that transition's animations\n * should occur whenever one of the state change expressions matches\n *\n * _Example:_\n * ```typescript\n * transition(':increment, * => enabled, :enter', animate('1s ease', keyframes([\n * style({ transform: 'scale(1)', offset: 0}),\n * style({ transform: 'scale(1.1)', offset: 0.7}),\n * style({ transform: 'scale(1)', offset: 1})\n * ]))),\n * ```\n *\n * Also note that in such context:\n * - `void` can be used to indicate the absence of the element\n * - asterisks can be used as wildcards that match any state\n * - (as a consequence of the above, `void => *` is equivalent to `:enter` and `* => void` is\n * equivalent to `:leave`)\n * - `true` and `false` also match expression values of `1` and `0` respectively (but do not match\n * _truthy_ and _falsy_ values)\n *\n * \n *\n * Be careful about entering end leaving elements as their transitions present a common\n * pitfall for developers.\n *\n * Note that when an element with a trigger enters the DOM its `:enter` transition always\n * gets executed, but its `:leave` transition will not be executed if the element is removed\n * alongside its parent (as it will be removed \"without warning\" before its transition has\n * a chance to be executed, the only way that such transition can occur is if the element\n * is exiting the DOM on its own).\n *\n *\n *
\n *\n * ### Animating to a Final State\n *\n * If the final step in a transition is a call to `animate()` that uses a timing value\n * with no `style` data, that step is automatically considered the final animation arc,\n * for the element to reach the final state, in such case Angular automatically adds or removes\n * CSS styles to ensure that the element is in the correct final state.\n *\n *\n * ### Usage Examples\n *\n * - Transition animations applied based on\n * the trigger's expression value\n *\n * ```HTML\n * \n * ...\n *
\n * ```\n *\n * ```typescript\n * trigger(\"myAnimationTrigger\", [\n * ..., // states\n * transition(\"on => off, open => closed\", animate(500)),\n * transition(\"* <=> error\", query('.indicator', animateChild()))\n * ])\n * ```\n *\n * - Transition animations applied based on custom logic dependent\n * on the trigger's expression value and provided parameters\n *\n * ```HTML\n * \n * ...\n *
\n * ```\n *\n * ```typescript\n * trigger(\"myAnimationTrigger\", [\n * ..., // states\n * transition(\n * (fromState, toState, _element, params) =>\n * ['firststep', 'laststep'].includes(fromState.toLowerCase())\n * && toState === params?.['target'],\n * animate('1s')\n * )\n * ])\n * ```\n *\n * @publicApi\n **/\nfunction transition(stateChangeExpr, steps, options = null) {\n return { type: 1 /* Transition */, expr: stateChangeExpr, animation: steps, options };\n}\n/**\n * Produces a reusable animation that can be invoked in another animation or sequence,\n * by calling the `useAnimation()` function.\n *\n * @param steps One or more animation objects, as returned by the `animate()`\n * or `sequence()` function, that form a transformation from one state to another.\n * A sequence is used by default when you pass an array.\n * @param options An options object that can contain a delay value for the start of the\n * animation, and additional developer-defined parameters.\n * Provided values for additional parameters are used as defaults,\n * and override values can be passed to the caller on invocation.\n * @returns An object that encapsulates the animation data.\n *\n * @usageNotes\n * The following example defines a reusable animation, providing some default parameter\n * values.\n *\n * ```typescript\n * var fadeAnimation = animation([\n * style({ opacity: '{{ start }}' }),\n * animate('{{ time }}',\n * style({ opacity: '{{ end }}'}))\n * ],\n * { params: { time: '1000ms', start: 0, end: 1 }});\n * ```\n *\n * The following invokes the defined animation with a call to `useAnimation()`,\n * passing in override parameter values.\n *\n * ```js\n * useAnimation(fadeAnimation, {\n * params: {\n * time: '2s',\n * start: 1,\n * end: 0\n * }\n * })\n * ```\n *\n * If any of the passed-in parameter values are missing from this call,\n * the default values are used. If one or more parameter values are missing before a step is\n * animated, `useAnimation()` throws an error.\n *\n * @publicApi\n */\nfunction animation(steps, options = null) {\n return { type: 8 /* Reference */, animation: steps, options };\n}\n/**\n * Executes a queried inner animation element within an animation sequence.\n *\n * @param options An options object that can contain a delay value for the start of the\n * animation, and additional override values for developer-defined parameters.\n * @return An object that encapsulates the child animation data.\n *\n * @usageNotes\n * Each time an animation is triggered in Angular, the parent animation\n * has priority and any child animations are blocked. In order\n * for a child animation to run, the parent animation must query each of the elements\n * containing child animations, and run them using this function.\n *\n * Note that this feature is designed to be used with `query()` and it will only work\n * with animations that are assigned using the Angular animation library. CSS keyframes\n * and transitions are not handled by this API.\n *\n * @publicApi\n */\nfunction animateChild(options = null) {\n return { type: 9 /* AnimateChild */, options };\n}\n/**\n * Starts a reusable animation that is created using the `animation()` function.\n *\n * @param animation The reusable animation to start.\n * @param options An options object that can contain a delay value for the start of\n * the animation, and additional override values for developer-defined parameters.\n * @return An object that contains the animation parameters.\n *\n * @publicApi\n */\nfunction useAnimation(animation, options = null) {\n return { type: 10 /* AnimateRef */, animation, options };\n}\n/**\n * Finds one or more inner elements within the current element that is\n * being animated within a sequence. Use with `animate()`.\n *\n * @param selector The element to query, or a set of elements that contain Angular-specific\n * characteristics, specified with one or more of the following tokens.\n * - `query(\":enter\")` or `query(\":leave\")` : Query for newly inserted/removed elements (not\n * all elements can be queried via these tokens, see\n * [Entering and Leaving Elements](#entering-and-leaving-elements))\n * - `query(\":animating\")` : Query all currently animating elements.\n * - `query(\"@triggerName\")` : Query elements that contain an animation trigger.\n * - `query(\"@*\")` : Query all elements that contain an animation triggers.\n * - `query(\":self\")` : Include the current element into the animation sequence.\n *\n * @param animation One or more animation steps to apply to the queried element or elements.\n * An array is treated as an animation sequence.\n * @param options An options object. Use the 'limit' field to limit the total number of\n * items to collect.\n * @return An object that encapsulates the query data.\n *\n * @usageNotes\n *\n * ### Multiple Tokens\n *\n * Tokens can be merged into a combined query selector string. For example:\n *\n * ```typescript\n * query(':self, .record:enter, .record:leave, @subTrigger', [...])\n * ```\n *\n * The `query()` function collects multiple elements and works internally by using\n * `element.querySelectorAll`. Use the `limit` field of an options object to limit\n * the total number of items to be collected. For example:\n *\n * ```js\n * query('div', [\n * animate(...),\n * animate(...)\n * ], { limit: 1 })\n * ```\n *\n * By default, throws an error when zero items are found. Set the\n * `optional` flag to ignore this error. For example:\n *\n * ```js\n * query('.some-element-that-may-not-be-there', [\n * animate(...),\n * animate(...)\n * ], { optional: true })\n * ```\n *\n * ### Entering and Leaving Elements\n *\n * Not all elements can be queried via the `:enter` and `:leave` tokens, the only ones\n * that can are those that Angular assumes can enter/leave based on their own logic\n * (if their insertion/removal is simply a consequence of that of their parent they\n * should be queried via a different token in their parent's `:enter`/`:leave` transitions).\n *\n * The only elements Angular assumes can enter/leave based on their own logic (thus the only\n * ones that can be queried via the `:enter` and `:leave` tokens) are:\n * - Those inserted dynamically (via `ViewContainerRef`)\n * - Those that have a structural directive (which, under the hood, are a subset of the above ones)\n *\n * \n *\n * Note that elements will be successfully queried via `:enter`/`:leave` even if their\n * insertion/removal is not done manually via `ViewContainerRef`or caused by their structural\n * directive (e.g. they enter/exit alongside their parent).\n *\n *
\n *\n * \n *\n * There is an exception to what previously mentioned, besides elements entering/leaving based on\n * their own logic, elements with an animation trigger can always be queried via `:leave` when\n * their parent is also leaving.\n *\n *
\n *\n * ### Usage Example\n *\n * The following example queries for inner elements and animates them\n * individually using `animate()`.\n *\n * ```typescript\n * @Component({\n * selector: 'inner',\n * template: `\n * \n *
Title
\n *
\n * Blah blah blah\n *
\n *
\n * \n *
\n * {{ item }}\n *
\n *
\\n \\n
\\n\\n\\n\", styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkVirtualScrollViewport, decorators: [{\n type: Component,\n args: [{ selector: 'cdk-virtual-scroll-viewport', host: {\n 'class': 'cdk-virtual-scroll-viewport',\n '[class.cdk-virtual-scroll-orientation-horizontal]': 'orientation === \"horizontal\"',\n '[class.cdk-virtual-scroll-orientation-vertical]': 'orientation !== \"horizontal\"',\n }, encapsulation: ViewEncapsulation.None, changeDetection: ChangeDetectionStrategy.OnPush, providers: [\n {\n provide: CdkScrollable,\n useExisting: CdkVirtualScrollViewport,\n },\n ], template: \"\\n\\n \\n
\\n\\n\\n\", styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"] }]\n }], ctorParameters: function () {\n return [{ type: i0.ElementRef }, { type: i0.ChangeDetectorRef }, { type: i0.NgZone }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [VIRTUAL_SCROLL_STRATEGY]\n }] }, { type: i2.Directionality, decorators: [{\n type: Optional\n }] }, { type: ScrollDispatcher }, { type: ViewportRuler }];\n }, propDecorators: { orientation: [{\n type: Input\n }], appendOnly: [{\n type: Input\n }], scrolledIndexChange: [{\n type: Output\n }], _contentWrapper: [{\n type: ViewChild,\n args: ['contentWrapper', { static: true }]\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Helper to extract the offset of a DOM Node in a certain direction. */\nfunction getOffset(orientation, direction, node) {\n const el = node;\n if (!el.getBoundingClientRect) {\n return 0;\n }\n const rect = el.getBoundingClientRect();\n if (orientation === 'horizontal') {\n return direction === 'start' ? rect.left : rect.right;\n }\n return direction === 'start' ? rect.top : rect.bottom;\n}\n/**\n * A directive similar to `ngForOf` to be used for rendering data inside a virtual scrolling\n * container.\n */\nclass CdkVirtualForOf {\n constructor(\n /** The view container to add items to. */\n _viewContainerRef, \n /** The template to use when stamping out new items. */\n _template, \n /** The set of available differs. */\n _differs, \n /** The strategy used to render items in the virtual scroll viewport. */\n _viewRepeater, \n /** The virtual scrolling viewport that these items are being rendered in. */\n _viewport, ngZone) {\n this._viewContainerRef = _viewContainerRef;\n this._template = _template;\n this._differs = _differs;\n this._viewRepeater = _viewRepeater;\n this._viewport = _viewport;\n /** Emits when the rendered view of the data changes. */\n this.viewChange = new Subject();\n /** Subject that emits when a new DataSource instance is given. */\n this._dataSourceChanges = new Subject();\n /** Emits whenever the data in the current DataSource changes. */\n this.dataStream = this._dataSourceChanges.pipe(\n // Start off with null `DataSource`.\n startWith(null), \n // Bundle up the previous and current data sources so we can work with both.\n pairwise(), \n // Use `_changeDataSource` to disconnect from the previous data source and connect to the\n // new one, passing back a stream of data changes which we run through `switchMap` to give\n // us a data stream that emits the latest data from whatever the current `DataSource` is.\n switchMap(([prev, cur]) => this._changeDataSource(prev, cur)), \n // Replay the last emitted data when someone subscribes.\n shareReplay(1));\n /** The differ used to calculate changes to the data. */\n this._differ = null;\n /** Whether the rendered data should be updated during the next ngDoCheck cycle. */\n this._needsUpdate = false;\n this._destroyed = new Subject();\n this.dataStream.subscribe(data => {\n this._data = data;\n this._onRenderedDataChange();\n });\n this._viewport.renderedRangeStream.pipe(takeUntil(this._destroyed)).subscribe(range => {\n this._renderedRange = range;\n ngZone.run(() => this.viewChange.next(this._renderedRange));\n this._onRenderedDataChange();\n });\n this._viewport.attach(this);\n }\n /** The DataSource to display. */\n get cdkVirtualForOf() {\n return this._cdkVirtualForOf;\n }\n set cdkVirtualForOf(value) {\n this._cdkVirtualForOf = value;\n if (isDataSource(value)) {\n this._dataSourceChanges.next(value);\n }\n else {\n // If value is an an NgIterable, convert it to an array.\n this._dataSourceChanges.next(new ArrayDataSource(isObservable(value) ? value : Array.from(value || [])));\n }\n }\n /**\n * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n * the item and produces a value to be used as the item's identity when tracking changes.\n */\n get cdkVirtualForTrackBy() {\n return this._cdkVirtualForTrackBy;\n }\n set cdkVirtualForTrackBy(fn) {\n this._needsUpdate = true;\n this._cdkVirtualForTrackBy = fn\n ? (index, item) => fn(index + (this._renderedRange ? this._renderedRange.start : 0), item)\n : undefined;\n }\n /** The template used to stamp out new elements. */\n set cdkVirtualForTemplate(value) {\n if (value) {\n this._needsUpdate = true;\n this._template = value;\n }\n }\n /**\n * The size of the cache used to store templates that are not being used for re-use later.\n * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n */\n get cdkVirtualForTemplateCacheSize() {\n return this._viewRepeater.viewCacheSize;\n }\n set cdkVirtualForTemplateCacheSize(size) {\n this._viewRepeater.viewCacheSize = coerceNumberProperty(size);\n }\n /**\n * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n * in the specified range. Throws an error if the range includes items that are not currently\n * rendered.\n */\n measureRangeSize(range, orientation) {\n if (range.start >= range.end) {\n return 0;\n }\n if ((range.start < this._renderedRange.start || range.end > this._renderedRange.end) &&\n (typeof ngDevMode === 'undefined' || ngDevMode)) {\n throw Error(`Error: attempted to measure an item that isn't rendered.`);\n }\n // The index into the list of rendered views for the first item in the range.\n const renderedStartIndex = range.start - this._renderedRange.start;\n // The length of the range we're measuring.\n const rangeLen = range.end - range.start;\n // Loop over all the views, find the first and land node and compute the size by subtracting\n // the top of the first node from the bottom of the last one.\n let firstNode;\n let lastNode;\n // Find the first node by starting from the beginning and going forwards.\n for (let i = 0; i < rangeLen; i++) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n if (view && view.rootNodes.length) {\n firstNode = lastNode = view.rootNodes[0];\n break;\n }\n }\n // Find the last node by starting from the end and going backwards.\n for (let i = rangeLen - 1; i > -1; i--) {\n const view = this._viewContainerRef.get(i + renderedStartIndex);\n if (view && view.rootNodes.length) {\n lastNode = view.rootNodes[view.rootNodes.length - 1];\n break;\n }\n }\n return firstNode && lastNode\n ? getOffset(orientation, 'end', lastNode) - getOffset(orientation, 'start', firstNode)\n : 0;\n }\n ngDoCheck() {\n if (this._differ && this._needsUpdate) {\n // TODO(mmalerba): We should differentiate needs update due to scrolling and a new portion of\n // this list being rendered (can use simpler algorithm) vs needs update due to data actually\n // changing (need to do this diff).\n const changes = this._differ.diff(this._renderedItems);\n if (!changes) {\n this._updateContext();\n }\n else {\n this._applyChanges(changes);\n }\n this._needsUpdate = false;\n }\n }\n ngOnDestroy() {\n this._viewport.detach();\n this._dataSourceChanges.next(undefined);\n this._dataSourceChanges.complete();\n this.viewChange.complete();\n this._destroyed.next();\n this._destroyed.complete();\n this._viewRepeater.detach();\n }\n /** React to scroll state changes in the viewport. */\n _onRenderedDataChange() {\n if (!this._renderedRange) {\n return;\n }\n this._renderedItems = this._data.slice(this._renderedRange.start, this._renderedRange.end);\n if (!this._differ) {\n // Use a wrapper function for the `trackBy` so any new values are\n // picked up automatically without having to recreate the differ.\n this._differ = this._differs.find(this._renderedItems).create((index, item) => {\n return this.cdkVirtualForTrackBy ? this.cdkVirtualForTrackBy(index, item) : item;\n });\n }\n this._needsUpdate = true;\n }\n /** Swap out one `DataSource` for another. */\n _changeDataSource(oldDs, newDs) {\n if (oldDs) {\n oldDs.disconnect(this);\n }\n this._needsUpdate = true;\n return newDs ? newDs.connect(this) : of();\n }\n /** Update the `CdkVirtualForOfContext` for all views. */\n _updateContext() {\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n while (i--) {\n const view = this._viewContainerRef.get(i);\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n view.detectChanges();\n }\n }\n /** Apply changes to the DOM. */\n _applyChanges(changes) {\n this._viewRepeater.applyChanges(changes, this._viewContainerRef, (record, _adjustedPreviousIndex, currentIndex) => this._getEmbeddedViewArgs(record, currentIndex), record => record.item);\n // Update $implicit for any items that had an identity change.\n changes.forEachIdentityChange((record) => {\n const view = this._viewContainerRef.get(record.currentIndex);\n view.context.$implicit = record.item;\n });\n // Update the context variables on all items.\n const count = this._data.length;\n let i = this._viewContainerRef.length;\n while (i--) {\n const view = this._viewContainerRef.get(i);\n view.context.index = this._renderedRange.start + i;\n view.context.count = count;\n this._updateComputedContextProperties(view.context);\n }\n }\n /** Update the computed properties on the `CdkVirtualForOfContext`. */\n _updateComputedContextProperties(context) {\n context.first = context.index === 0;\n context.last = context.index === context.count - 1;\n context.even = context.index % 2 === 0;\n context.odd = !context.even;\n }\n _getEmbeddedViewArgs(record, index) {\n // Note that it's important that we insert the item directly at the proper index,\n // rather than inserting it and the moving it in place, because if there's a directive\n // on the same node that injects the `ViewContainerRef`, Angular will insert another\n // comment node which can throw off the move when it's being repeated for all items.\n return {\n templateRef: this._template,\n context: {\n $implicit: record.item,\n // It's guaranteed that the iterable is not \"undefined\" or \"null\" because we only\n // generate views for elements if the \"cdkVirtualForOf\" iterable has elements.\n cdkVirtualForOf: this._cdkVirtualForOf,\n index: -1,\n count: -1,\n first: false,\n last: false,\n odd: false,\n even: false,\n },\n index,\n };\n }\n}\nCdkVirtualForOf.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkVirtualForOf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: i0.IterableDiffers }, { token: _VIEW_REPEATER_STRATEGY }, { token: CdkVirtualScrollViewport, skipSelf: true }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Directive });\nCdkVirtualForOf.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.0\", type: CdkVirtualForOf, selector: \"[cdkVirtualFor][cdkVirtualForOf]\", inputs: { cdkVirtualForOf: \"cdkVirtualForOf\", cdkVirtualForTrackBy: \"cdkVirtualForTrackBy\", cdkVirtualForTemplate: \"cdkVirtualForTemplate\", cdkVirtualForTemplateCacheSize: \"cdkVirtualForTemplateCacheSize\" }, providers: [{ provide: _VIEW_REPEATER_STRATEGY, useClass: _RecycleViewRepeaterStrategy }], ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkVirtualForOf, decorators: [{\n type: Directive,\n args: [{\n selector: '[cdkVirtualFor][cdkVirtualForOf]',\n providers: [{ provide: _VIEW_REPEATER_STRATEGY, useClass: _RecycleViewRepeaterStrategy }],\n }]\n }], ctorParameters: function () {\n return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: i0.IterableDiffers }, { type: i2$1._RecycleViewRepeaterStrategy, decorators: [{\n type: Inject,\n args: [_VIEW_REPEATER_STRATEGY]\n }] }, { type: CdkVirtualScrollViewport, decorators: [{\n type: SkipSelf\n }] }, { type: i0.NgZone }];\n }, propDecorators: { cdkVirtualForOf: [{\n type: Input\n }], cdkVirtualForTrackBy: [{\n type: Input\n }], cdkVirtualForTemplate: [{\n type: Input\n }], cdkVirtualForTemplateCacheSize: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass CdkScrollableModule {\n}\nCdkScrollableModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkScrollableModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nCdkScrollableModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkScrollableModule, declarations: [CdkScrollable], exports: [CdkScrollable] });\nCdkScrollableModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkScrollableModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: CdkScrollableModule, decorators: [{\n type: NgModule,\n args: [{\n exports: [CdkScrollable],\n declarations: [CdkScrollable],\n }]\n }] });\n/**\n * @docs-primary-export\n */\nclass ScrollingModule {\n}\nScrollingModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: ScrollingModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nScrollingModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: ScrollingModule, declarations: [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport], imports: [BidiModule, CdkScrollableModule], exports: [BidiModule, CdkScrollableModule, CdkFixedSizeVirtualScroll,\n CdkVirtualForOf,\n CdkVirtualScrollViewport] });\nScrollingModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: ScrollingModule, imports: [[BidiModule, CdkScrollableModule], BidiModule, CdkScrollableModule] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.0\", ngImport: i0, type: ScrollingModule, decorators: [{\n type: NgModule,\n args: [{\n imports: [BidiModule, CdkScrollableModule],\n exports: [\n BidiModule,\n CdkScrollableModule,\n CdkFixedSizeVirtualScroll,\n CdkVirtualForOf,\n CdkVirtualScrollViewport,\n ],\n declarations: [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CdkFixedSizeVirtualScroll, CdkScrollable, CdkScrollableModule, CdkVirtualForOf, CdkVirtualScrollViewport, DEFAULT_RESIZE_TIME, DEFAULT_SCROLL_TIME, FixedSizeVirtualScrollStrategy, ScrollDispatcher, ScrollingModule, VIRTUAL_SCROLL_STRATEGY, ViewportRuler, _fixedSizeVirtualScrollStrategyFactory };\n","/**\n * @license Angular v13.2.6\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { InjectionToken, Injectable, ɵɵinject, Inject, Optional, EventEmitter, ɵfindLocaleData, ɵLocaleDataIndex, ɵgetLocaleCurrencyCode, ɵgetLocalePluralCase, LOCALE_ID, ɵregisterLocaleData, ɵisListLikeIterable, ɵstringify, Directive, Input, NgModuleRef, ComponentFactoryResolver, Host, ɵRuntimeError, Attribute, ɵisPromise, ɵisSubscribable, Pipe, DEFAULT_CURRENCY_CODE, NgModule, Version, ɵɵdefineInjectable } from '@angular/core';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nlet _DOM = null;\nfunction getDOM() {\n return _DOM;\n}\nfunction setDOM(adapter) {\n _DOM = adapter;\n}\nfunction setRootDomAdapter(adapter) {\n if (!_DOM) {\n _DOM = adapter;\n }\n}\n/* tslint:disable:requireParameterType */\n/**\n * Provides DOM operations in an environment-agnostic way.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\nclass DomAdapter {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A DI Token representing the main rendering context. In a browser this is the DOM Document.\n *\n * Note: Document might not be available in the Application Context when Application and Rendering\n * Contexts are not the same (e.g. when running the application in a Web Worker).\n *\n * @publicApi\n */\nconst DOCUMENT = new InjectionToken('DocumentToken');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n *\n * `PlatformLocation` encapsulates all calls to DOM APIs, which allows the Router to be\n * platform-agnostic.\n * This means that we can have different implementation of `PlatformLocation` for the different\n * platforms that Angular supports. For example, `@angular/platform-browser` provides an\n * implementation specific to the browser environment, while `@angular/platform-server` provides\n * one suitable for use with server-side rendering.\n *\n * The `PlatformLocation` class is used directly by all implementations of {@link LocationStrategy}\n * when they need to interact with the DOM APIs like pushState, popState, etc.\n *\n * {@link LocationStrategy} in turn is used by the {@link Location} service which is used directly\n * by the {@link Router} in order to navigate between routes. Since all interactions between {@link\n * Router} /\n * {@link Location} / {@link LocationStrategy} and DOM APIs flow through the `PlatformLocation`\n * class, they are all platform-agnostic.\n *\n * @publicApi\n */\nclass PlatformLocation {\n historyGo(relativePosition) {\n throw new Error('Not implemented');\n }\n}\nPlatformLocation.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PlatformLocation, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nPlatformLocation.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PlatformLocation, providedIn: 'platform', useFactory: useBrowserPlatformLocation });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PlatformLocation, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'platform',\n // See #23917\n useFactory: useBrowserPlatformLocation\n }]\n }] });\nfunction useBrowserPlatformLocation() {\n return ɵɵinject(BrowserPlatformLocation);\n}\n/**\n * @description\n * Indicates when a location is initialized.\n *\n * @publicApi\n */\nconst LOCATION_INITIALIZED = new InjectionToken('Location Initialized');\n/**\n * `PlatformLocation` encapsulates all of the direct calls to platform APIs.\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n */\nclass BrowserPlatformLocation extends PlatformLocation {\n constructor(_doc) {\n super();\n this._doc = _doc;\n this._init();\n }\n // This is moved to its own method so that `MockPlatformLocationStrategy` can overwrite it\n /** @internal */\n _init() {\n this.location = window.location;\n this._history = window.history;\n }\n getBaseHrefFromDOM() {\n return getDOM().getBaseHref(this._doc);\n }\n onPopState(fn) {\n const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n window.addEventListener('popstate', fn, false);\n return () => window.removeEventListener('popstate', fn);\n }\n onHashChange(fn) {\n const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n window.addEventListener('hashchange', fn, false);\n return () => window.removeEventListener('hashchange', fn);\n }\n get href() {\n return this.location.href;\n }\n get protocol() {\n return this.location.protocol;\n }\n get hostname() {\n return this.location.hostname;\n }\n get port() {\n return this.location.port;\n }\n get pathname() {\n return this.location.pathname;\n }\n get search() {\n return this.location.search;\n }\n get hash() {\n return this.location.hash;\n }\n set pathname(newPath) {\n this.location.pathname = newPath;\n }\n pushState(state, title, url) {\n if (supportsState()) {\n this._history.pushState(state, title, url);\n }\n else {\n this.location.hash = url;\n }\n }\n replaceState(state, title, url) {\n if (supportsState()) {\n this._history.replaceState(state, title, url);\n }\n else {\n this.location.hash = url;\n }\n }\n forward() {\n this._history.forward();\n }\n back() {\n this._history.back();\n }\n historyGo(relativePosition = 0) {\n this._history.go(relativePosition);\n }\n getState() {\n return this._history.state;\n }\n}\nBrowserPlatformLocation.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: BrowserPlatformLocation, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });\nBrowserPlatformLocation.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: BrowserPlatformLocation, providedIn: 'platform', useFactory: createBrowserPlatformLocation });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: BrowserPlatformLocation, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'platform',\n // See #23917\n useFactory: createBrowserPlatformLocation,\n }]\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }] }];\n } });\nfunction supportsState() {\n return !!window.history.pushState;\n}\nfunction createBrowserPlatformLocation() {\n return new BrowserPlatformLocation(ɵɵinject(DOCUMENT));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param start URL string\n * @param end URL string\n *\n *\n * @returns The joined URL string.\n */\nfunction joinWithSlash(start, end) {\n if (start.length == 0) {\n return end;\n }\n if (end.length == 0) {\n return start;\n }\n let slashes = 0;\n if (start.endsWith('/')) {\n slashes++;\n }\n if (end.startsWith('/')) {\n slashes++;\n }\n if (slashes == 2) {\n return start + end.substring(1);\n }\n if (slashes == 1) {\n return start + end;\n }\n return start + '/' + end;\n}\n/**\n * Removes a trailing slash from a URL string if needed.\n * Looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param url URL string.\n *\n * @returns The URL string, modified if needed.\n */\nfunction stripTrailingSlash(url) {\n const match = url.match(/#|\\?|$/);\n const pathEndIdx = match && match.index || url.length;\n const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);\n return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);\n}\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param params String of URL parameters.\n *\n * @returns The normalized URL parameters string.\n */\nfunction normalizeQueryParams(params) {\n return params && params[0] !== '?' ? '?' + params : params;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Enables the `Location` service to read route state from the browser's URL.\n * Angular provides two strategies:\n * `HashLocationStrategy` and `PathLocationStrategy`.\n *\n * Applications should use the `Router` or `Location` services to\n * interact with application route state.\n *\n * For instance, `HashLocationStrategy` produces URLs like\n * http://example.com#/foo,\n * and `PathLocationStrategy` produces\n * http://example.com/foo as an equivalent URL.\n *\n * See these two classes for more.\n *\n * @publicApi\n */\nclass LocationStrategy {\n historyGo(relativePosition) {\n throw new Error('Not implemented');\n }\n}\nLocationStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LocationStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nLocationStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LocationStrategy, providedIn: 'root', useFactory: provideLocationStrategy });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LocationStrategy, decorators: [{\n type: Injectable,\n args: [{ providedIn: 'root', useFactory: provideLocationStrategy }]\n }] });\nfunction provideLocationStrategy(platformLocation) {\n // See #23917\n const location = ɵɵinject(DOCUMENT).location;\n return new PathLocationStrategy(ɵɵinject(PlatformLocation), location && location.origin || '');\n}\n/**\n * A predefined [DI token](guide/glossary#di-token) for the base href\n * to be used with the `PathLocationStrategy`.\n * The base href is the URL prefix that should be preserved when generating\n * and recognizing URLs.\n *\n * @usageNotes\n *\n * The following example shows how to use this token to configure the root app injector\n * with a base href value, so that the DI framework can supply the dependency anywhere in the app.\n *\n * ```typescript\n * import {Component, NgModule} from '@angular/core';\n * import {APP_BASE_HREF} from '@angular/common';\n *\n * @NgModule({\n * providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]\n * })\n * class AppModule {}\n * ```\n *\n * @publicApi\n */\nconst APP_BASE_HREF = new InjectionToken('appBaseHref');\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the\n * browser's URL.\n *\n * If you're using `PathLocationStrategy`, you must provide a {@link APP_BASE_HREF}\n * or add a `` element to the document.\n *\n * For instance, if you provide an `APP_BASE_HREF` of `'/my/app/'` and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`. To ensure all relative URIs resolve correctly,\n * the `` and/or `APP_BASE_HREF` should end with a `/`.\n *\n * Similarly, if you add `` to the document and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * Note that when using `PathLocationStrategy`, neither the query nor\n * the fragment in the `` will be preserved, as outlined\n * by the [RFC](https://tools.ietf.org/html/rfc3986#section-5.2.2).\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nclass PathLocationStrategy extends LocationStrategy {\n constructor(_platformLocation, href) {\n super();\n this._platformLocation = _platformLocation;\n this._removeListenerFns = [];\n if (href == null) {\n href = this._platformLocation.getBaseHrefFromDOM();\n }\n if (href == null) {\n throw new Error(`No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.`);\n }\n this._baseHref = href;\n }\n /** @nodoc */\n ngOnDestroy() {\n while (this._removeListenerFns.length) {\n this._removeListenerFns.pop()();\n }\n }\n onPopState(fn) {\n this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));\n }\n getBaseHref() {\n return this._baseHref;\n }\n prepareExternalUrl(internal) {\n return joinWithSlash(this._baseHref, internal);\n }\n path(includeHash = false) {\n const pathname = this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);\n const hash = this._platformLocation.hash;\n return hash && includeHash ? `${pathname}${hash}` : pathname;\n }\n pushState(state, title, url, queryParams) {\n const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n this._platformLocation.pushState(state, title, externalUrl);\n }\n replaceState(state, title, url, queryParams) {\n const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n this._platformLocation.replaceState(state, title, externalUrl);\n }\n forward() {\n this._platformLocation.forward();\n }\n back() {\n this._platformLocation.back();\n }\n historyGo(relativePosition = 0) {\n var _a, _b;\n (_b = (_a = this._platformLocation).historyGo) === null || _b === void 0 ? void 0 : _b.call(_a, relativePosition);\n }\n}\nPathLocationStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PathLocationStrategy, deps: [{ token: PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nPathLocationStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PathLocationStrategy });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PathLocationStrategy, decorators: [{\n type: Injectable\n }], ctorParameters: function () {\n return [{ type: PlatformLocation }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [APP_BASE_HREF]\n }] }];\n } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)\n * of the browser's URL.\n *\n * For instance, if you call `location.go('/foo')`, the browser's URL will become\n * `example.com#/foo`.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/hash_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nclass HashLocationStrategy extends LocationStrategy {\n constructor(_platformLocation, _baseHref) {\n super();\n this._platformLocation = _platformLocation;\n this._baseHref = '';\n this._removeListenerFns = [];\n if (_baseHref != null) {\n this._baseHref = _baseHref;\n }\n }\n /** @nodoc */\n ngOnDestroy() {\n while (this._removeListenerFns.length) {\n this._removeListenerFns.pop()();\n }\n }\n onPopState(fn) {\n this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));\n }\n getBaseHref() {\n return this._baseHref;\n }\n path(includeHash = false) {\n // the hash value is always prefixed with a `#`\n // and if it is empty then it will stay empty\n let path = this._platformLocation.hash;\n if (path == null)\n path = '#';\n return path.length > 0 ? path.substring(1) : path;\n }\n prepareExternalUrl(internal) {\n const url = joinWithSlash(this._baseHref, internal);\n return url.length > 0 ? ('#' + url) : url;\n }\n pushState(state, title, path, queryParams) {\n let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n if (url.length == 0) {\n url = this._platformLocation.pathname;\n }\n this._platformLocation.pushState(state, title, url);\n }\n replaceState(state, title, path, queryParams) {\n let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n if (url.length == 0) {\n url = this._platformLocation.pathname;\n }\n this._platformLocation.replaceState(state, title, url);\n }\n forward() {\n this._platformLocation.forward();\n }\n back() {\n this._platformLocation.back();\n }\n historyGo(relativePosition = 0) {\n var _a, _b;\n (_b = (_a = this._platformLocation).historyGo) === null || _b === void 0 ? void 0 : _b.call(_a, relativePosition);\n }\n}\nHashLocationStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HashLocationStrategy, deps: [{ token: PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });\nHashLocationStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HashLocationStrategy });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HashLocationStrategy, decorators: [{\n type: Injectable\n }], ctorParameters: function () {\n return [{ type: PlatformLocation }, { type: undefined, decorators: [{\n type: Optional\n }, {\n type: Inject,\n args: [APP_BASE_HREF]\n }] }];\n } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n *\n * A service that applications can use to interact with a browser's URL.\n *\n * Depending on the `LocationStrategy` used, `Location` persists\n * to the URL's path or the URL's hash segment.\n *\n * @usageNotes\n *\n * It's better to use the `Router.navigate()` service to trigger route changes. Use\n * `Location` only if you need to interact with or create normalized URLs outside of\n * routing.\n *\n * `Location` is responsible for normalizing the URL against the application's base href.\n * A normalized URL is absolute from the URL host, includes the application's base href, and has no\n * trailing slash:\n * - `/my/app/user/123` is normalized\n * - `my/app/user/123` **is not** normalized\n * - `/my/app/user/123/` **is not** normalized\n *\n * ### Example\n *\n * \n *\n * @publicApi\n */\nclass Location {\n constructor(platformStrategy, platformLocation) {\n /** @internal */\n this._subject = new EventEmitter();\n /** @internal */\n this._urlChangeListeners = [];\n this._platformStrategy = platformStrategy;\n const browserBaseHref = this._platformStrategy.getBaseHref();\n this._platformLocation = platformLocation;\n this._baseHref = stripTrailingSlash(_stripIndexHtml(browserBaseHref));\n this._platformStrategy.onPopState((ev) => {\n this._subject.emit({\n 'url': this.path(true),\n 'pop': true,\n 'state': ev.state,\n 'type': ev.type,\n });\n });\n }\n /**\n * Normalizes the URL path for this location.\n *\n * @param includeHash True to include an anchor fragment in the path.\n *\n * @returns The normalized URL path.\n */\n // TODO: vsavkin. Remove the boolean flag and always include hash once the deprecated router is\n // removed.\n path(includeHash = false) {\n return this.normalize(this._platformStrategy.path(includeHash));\n }\n /**\n * Reports the current state of the location history.\n * @returns The current value of the `history.state` object.\n */\n getState() {\n return this._platformLocation.getState();\n }\n /**\n * Normalizes the given path and compares to the current normalized path.\n *\n * @param path The given URL path.\n * @param query Query parameters.\n *\n * @returns True if the given URL path is equal to the current normalized path, false\n * otherwise.\n */\n isCurrentPathEqualTo(path, query = '') {\n return this.path() == this.normalize(path + normalizeQueryParams(query));\n }\n /**\n * Normalizes a URL path by stripping any trailing slashes.\n *\n * @param url String representing a URL.\n *\n * @returns The normalized URL string.\n */\n normalize(url) {\n return Location.stripTrailingSlash(_stripBaseHref(this._baseHref, _stripIndexHtml(url)));\n }\n /**\n * Normalizes an external URL path.\n * If the given URL doesn't begin with a leading slash (`'/'`), adds one\n * before normalizing. Adds a hash if `HashLocationStrategy` is\n * in use, or the `APP_BASE_HREF` if the `PathLocationStrategy` is in use.\n *\n * @param url String representing a URL.\n *\n * @returns A normalized platform-specific URL.\n */\n prepareExternalUrl(url) {\n if (url && url[0] !== '/') {\n url = '/' + url;\n }\n return this._platformStrategy.prepareExternalUrl(url);\n }\n // TODO: rename this method to pushState\n /**\n * Changes the browser's URL to a normalized version of a given URL, and pushes a\n * new item onto the platform's history.\n *\n * @param path URL path to normalize.\n * @param query Query parameters.\n * @param state Location history state.\n *\n */\n go(path, query = '', state = null) {\n this._platformStrategy.pushState(state, '', path, query);\n this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n }\n /**\n * Changes the browser's URL to a normalized version of the given URL, and replaces\n * the top item on the platform's history stack.\n *\n * @param path URL path to normalize.\n * @param query Query parameters.\n * @param state Location history state.\n */\n replaceState(path, query = '', state = null) {\n this._platformStrategy.replaceState(state, '', path, query);\n this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n }\n /**\n * Navigates forward in the platform's history.\n */\n forward() {\n this._platformStrategy.forward();\n }\n /**\n * Navigates back in the platform's history.\n */\n back() {\n this._platformStrategy.back();\n }\n /**\n * Navigate to a specific page from session history, identified by its relative position to the\n * current page.\n *\n * @param relativePosition Position of the target page in the history relative to the current\n * page.\n * A negative value moves backwards, a positive value moves forwards, e.g. `location.historyGo(2)`\n * moves forward two pages and `location.historyGo(-2)` moves back two pages. When we try to go\n * beyond what's stored in the history session, we stay in the current page. Same behaviour occurs\n * when `relativePosition` equals 0.\n * @see https://developer.mozilla.org/en-US/docs/Web/API/History_API#Moving_to_a_specific_point_in_history\n */\n historyGo(relativePosition = 0) {\n var _a, _b;\n (_b = (_a = this._platformStrategy).historyGo) === null || _b === void 0 ? void 0 : _b.call(_a, relativePosition);\n }\n /**\n * Registers a URL change listener. Use to catch updates performed by the Angular\n * framework that are not detectible through \"popstate\" or \"hashchange\" events.\n *\n * @param fn The change handler function, which take a URL and a location history state.\n */\n onUrlChange(fn) {\n this._urlChangeListeners.push(fn);\n if (!this._urlChangeSubscription) {\n this._urlChangeSubscription = this.subscribe(v => {\n this._notifyUrlChangeListeners(v.url, v.state);\n });\n }\n }\n /** @internal */\n _notifyUrlChangeListeners(url = '', state) {\n this._urlChangeListeners.forEach(fn => fn(url, state));\n }\n /**\n * Subscribes to the platform's `popState` events.\n *\n * Note: `Location.go()` does not trigger the `popState` event in the browser. Use\n * `Location.onUrlChange()` to subscribe to URL changes instead.\n *\n * @param value Event that is triggered when the state history changes.\n * @param exception The exception to throw.\n *\n * @see [onpopstate](https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onpopstate)\n *\n * @returns Subscribed events.\n */\n subscribe(onNext, onThrow, onReturn) {\n return this._subject.subscribe({ next: onNext, error: onThrow, complete: onReturn });\n }\n}\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param params String of URL parameters.\n *\n * @returns The normalized URL parameters string.\n */\nLocation.normalizeQueryParams = normalizeQueryParams;\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param start URL string\n * @param end URL string\n *\n *\n * @returns The joined URL string.\n */\nLocation.joinWithSlash = joinWithSlash;\n/**\n * Removes a trailing slash from a URL string if needed.\n * Looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param url URL string.\n *\n * @returns The URL string, modified if needed.\n */\nLocation.stripTrailingSlash = stripTrailingSlash;\nLocation.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: Location, deps: [{ token: LocationStrategy }, { token: PlatformLocation }], target: i0.ɵɵFactoryTarget.Injectable });\nLocation.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: Location, providedIn: 'root', useFactory: createLocation });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: Location, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'root',\n // See #23917\n useFactory: createLocation,\n }]\n }], ctorParameters: function () { return [{ type: LocationStrategy }, { type: PlatformLocation }]; } });\nfunction createLocation() {\n return new Location(ɵɵinject(LocationStrategy), ɵɵinject(PlatformLocation));\n}\nfunction _stripBaseHref(baseHref, url) {\n return baseHref && url.startsWith(baseHref) ? url.substring(baseHref.length) : url;\n}\nfunction _stripIndexHtml(url) {\n return url.replace(/\\/index.html$/, '');\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @internal */\nconst CURRENCIES_EN = { \"ADP\": [undefined, undefined, 0], \"AFN\": [undefined, \"؋\", 0], \"ALL\": [undefined, undefined, 0], \"AMD\": [undefined, \"֏\", 2], \"AOA\": [undefined, \"Kz\"], \"ARS\": [undefined, \"$\"], \"AUD\": [\"A$\", \"$\"], \"AZN\": [undefined, \"₼\"], \"BAM\": [undefined, \"KM\"], \"BBD\": [undefined, \"$\"], \"BDT\": [undefined, \"৳\"], \"BHD\": [undefined, undefined, 3], \"BIF\": [undefined, undefined, 0], \"BMD\": [undefined, \"$\"], \"BND\": [undefined, \"$\"], \"BOB\": [undefined, \"Bs\"], \"BRL\": [\"R$\"], \"BSD\": [undefined, \"$\"], \"BWP\": [undefined, \"P\"], \"BYN\": [undefined, \"р.\", 2], \"BYR\": [undefined, undefined, 0], \"BZD\": [undefined, \"$\"], \"CAD\": [\"CA$\", \"$\", 2], \"CHF\": [undefined, undefined, 2], \"CLF\": [undefined, undefined, 4], \"CLP\": [undefined, \"$\", 0], \"CNY\": [\"CN¥\", \"¥\"], \"COP\": [undefined, \"$\", 2], \"CRC\": [undefined, \"₡\", 2], \"CUC\": [undefined, \"$\"], \"CUP\": [undefined, \"$\"], \"CZK\": [undefined, \"Kč\", 2], \"DJF\": [undefined, undefined, 0], \"DKK\": [undefined, \"kr\", 2], \"DOP\": [undefined, \"$\"], \"EGP\": [undefined, \"E£\"], \"ESP\": [undefined, \"₧\", 0], \"EUR\": [\"€\"], \"FJD\": [undefined, \"$\"], \"FKP\": [undefined, \"£\"], \"GBP\": [\"£\"], \"GEL\": [undefined, \"₾\"], \"GHS\": [undefined, \"GH₵\"], \"GIP\": [undefined, \"£\"], \"GNF\": [undefined, \"FG\", 0], \"GTQ\": [undefined, \"Q\"], \"GYD\": [undefined, \"$\", 2], \"HKD\": [\"HK$\", \"$\"], \"HNL\": [undefined, \"L\"], \"HRK\": [undefined, \"kn\"], \"HUF\": [undefined, \"Ft\", 2], \"IDR\": [undefined, \"Rp\", 2], \"ILS\": [\"₪\"], \"INR\": [\"₹\"], \"IQD\": [undefined, undefined, 0], \"IRR\": [undefined, undefined, 0], \"ISK\": [undefined, \"kr\", 0], \"ITL\": [undefined, undefined, 0], \"JMD\": [undefined, \"$\"], \"JOD\": [undefined, undefined, 3], \"JPY\": [\"¥\", undefined, 0], \"KHR\": [undefined, \"៛\"], \"KMF\": [undefined, \"CF\", 0], \"KPW\": [undefined, \"₩\", 0], \"KRW\": [\"₩\", undefined, 0], \"KWD\": [undefined, undefined, 3], \"KYD\": [undefined, \"$\"], \"KZT\": [undefined, \"₸\"], \"LAK\": [undefined, \"₭\", 0], \"LBP\": [undefined, \"L£\", 0], \"LKR\": [undefined, \"Rs\"], \"LRD\": [undefined, \"$\"], \"LTL\": [undefined, \"Lt\"], \"LUF\": [undefined, undefined, 0], \"LVL\": [undefined, \"Ls\"], \"LYD\": [undefined, undefined, 3], \"MGA\": [undefined, \"Ar\", 0], \"MGF\": [undefined, undefined, 0], \"MMK\": [undefined, \"K\", 0], \"MNT\": [undefined, \"₮\", 2], \"MRO\": [undefined, undefined, 0], \"MUR\": [undefined, \"Rs\", 2], \"MXN\": [\"MX$\", \"$\"], \"MYR\": [undefined, \"RM\"], \"NAD\": [undefined, \"$\"], \"NGN\": [undefined, \"₦\"], \"NIO\": [undefined, \"C$\"], \"NOK\": [undefined, \"kr\", 2], \"NPR\": [undefined, \"Rs\"], \"NZD\": [\"NZ$\", \"$\"], \"OMR\": [undefined, undefined, 3], \"PHP\": [\"₱\"], \"PKR\": [undefined, \"Rs\", 2], \"PLN\": [undefined, \"zł\"], \"PYG\": [undefined, \"₲\", 0], \"RON\": [undefined, \"lei\"], \"RSD\": [undefined, undefined, 0], \"RUB\": [undefined, \"₽\"], \"RUR\": [undefined, \"р.\"], \"RWF\": [undefined, \"RF\", 0], \"SBD\": [undefined, \"$\"], \"SEK\": [undefined, \"kr\", 2], \"SGD\": [undefined, \"$\"], \"SHP\": [undefined, \"£\"], \"SLL\": [undefined, undefined, 0], \"SOS\": [undefined, undefined, 0], \"SRD\": [undefined, \"$\"], \"SSP\": [undefined, \"£\"], \"STD\": [undefined, undefined, 0], \"STN\": [undefined, \"Db\"], \"SYP\": [undefined, \"£\", 0], \"THB\": [undefined, \"฿\"], \"TMM\": [undefined, undefined, 0], \"TND\": [undefined, undefined, 3], \"TOP\": [undefined, \"T$\"], \"TRL\": [undefined, undefined, 0], \"TRY\": [undefined, \"₺\"], \"TTD\": [undefined, \"$\"], \"TWD\": [\"NT$\", \"$\", 2], \"TZS\": [undefined, undefined, 2], \"UAH\": [undefined, \"₴\"], \"UGX\": [undefined, undefined, 0], \"USD\": [\"$\"], \"UYI\": [undefined, undefined, 0], \"UYU\": [undefined, \"$\"], \"UYW\": [undefined, undefined, 4], \"UZS\": [undefined, undefined, 2], \"VEF\": [undefined, \"Bs\", 2], \"VND\": [\"₫\", undefined, 0], \"VUV\": [undefined, undefined, 0], \"XAF\": [\"FCFA\", undefined, 0], \"XCD\": [\"EC$\", \"$\"], \"XOF\": [\"F CFA\", undefined, 0], \"XPF\": [\"CFPF\", undefined, 0], \"XXX\": [\"¤\"], \"YER\": [undefined, undefined, 0], \"ZAR\": [undefined, \"R\"], \"ZMK\": [undefined, undefined, 0], \"ZMW\": [undefined, \"ZK\"], \"ZWD\": [undefined, undefined, 0] };\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Format styles that can be used to represent numbers.\n * @see `getLocaleNumberFormat()`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nvar NumberFormatStyle;\n(function (NumberFormatStyle) {\n NumberFormatStyle[NumberFormatStyle[\"Decimal\"] = 0] = \"Decimal\";\n NumberFormatStyle[NumberFormatStyle[\"Percent\"] = 1] = \"Percent\";\n NumberFormatStyle[NumberFormatStyle[\"Currency\"] = 2] = \"Currency\";\n NumberFormatStyle[NumberFormatStyle[\"Scientific\"] = 3] = \"Scientific\";\n})(NumberFormatStyle || (NumberFormatStyle = {}));\n/**\n * Plurality cases used for translating plurals to different languages.\n *\n * @see `NgPlural`\n * @see `NgPluralCase`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nvar Plural;\n(function (Plural) {\n Plural[Plural[\"Zero\"] = 0] = \"Zero\";\n Plural[Plural[\"One\"] = 1] = \"One\";\n Plural[Plural[\"Two\"] = 2] = \"Two\";\n Plural[Plural[\"Few\"] = 3] = \"Few\";\n Plural[Plural[\"Many\"] = 4] = \"Many\";\n Plural[Plural[\"Other\"] = 5] = \"Other\";\n})(Plural || (Plural = {}));\n/**\n * Context-dependant translation forms for strings.\n * Typically the standalone version is for the nominative form of the word,\n * and the format version is used for the genitive case.\n * @see [CLDR website](http://cldr.unicode.org/translation/date-time-1/date-time#TOC-Standalone-vs.-Format-Styles)\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nvar FormStyle;\n(function (FormStyle) {\n FormStyle[FormStyle[\"Format\"] = 0] = \"Format\";\n FormStyle[FormStyle[\"Standalone\"] = 1] = \"Standalone\";\n})(FormStyle || (FormStyle = {}));\n/**\n * String widths available for translations.\n * The specific character widths are locale-specific.\n * Examples are given for the word \"Sunday\" in English.\n *\n * @publicApi\n */\nvar TranslationWidth;\n(function (TranslationWidth) {\n /** 1 character for `en-US`. For example: 'S' */\n TranslationWidth[TranslationWidth[\"Narrow\"] = 0] = \"Narrow\";\n /** 3 characters for `en-US`. For example: 'Sun' */\n TranslationWidth[TranslationWidth[\"Abbreviated\"] = 1] = \"Abbreviated\";\n /** Full length for `en-US`. For example: \"Sunday\" */\n TranslationWidth[TranslationWidth[\"Wide\"] = 2] = \"Wide\";\n /** 2 characters for `en-US`, For example: \"Su\" */\n TranslationWidth[TranslationWidth[\"Short\"] = 3] = \"Short\";\n})(TranslationWidth || (TranslationWidth = {}));\n/**\n * String widths available for date-time formats.\n * The specific character widths are locale-specific.\n * Examples are given for `en-US`.\n *\n * @see `getLocaleDateFormat()`\n * @see `getLocaleTimeFormat()`\n * @see `getLocaleDateTimeFormat()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n * @publicApi\n */\nvar FormatWidth;\n(function (FormatWidth) {\n /**\n * For `en-US`, 'M/d/yy, h:mm a'`\n * (Example: `6/15/15, 9:03 AM`)\n */\n FormatWidth[FormatWidth[\"Short\"] = 0] = \"Short\";\n /**\n * For `en-US`, `'MMM d, y, h:mm:ss a'`\n * (Example: `Jun 15, 2015, 9:03:01 AM`)\n */\n FormatWidth[FormatWidth[\"Medium\"] = 1] = \"Medium\";\n /**\n * For `en-US`, `'MMMM d, y, h:mm:ss a z'`\n * (Example: `June 15, 2015 at 9:03:01 AM GMT+1`)\n */\n FormatWidth[FormatWidth[\"Long\"] = 2] = \"Long\";\n /**\n * For `en-US`, `'EEEE, MMMM d, y, h:mm:ss a zzzz'`\n * (Example: `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00`)\n */\n FormatWidth[FormatWidth[\"Full\"] = 3] = \"Full\";\n})(FormatWidth || (FormatWidth = {}));\n/**\n * Symbols that can be used to replace placeholders in number patterns.\n * Examples are based on `en-US` values.\n *\n * @see `getLocaleNumberSymbol()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nvar NumberSymbol;\n(function (NumberSymbol) {\n /**\n * Decimal separator.\n * For `en-US`, the dot character.\n * Example: 2,345`.`67\n */\n NumberSymbol[NumberSymbol[\"Decimal\"] = 0] = \"Decimal\";\n /**\n * Grouping separator, typically for thousands.\n * For `en-US`, the comma character.\n * Example: 2`,`345.67\n */\n NumberSymbol[NumberSymbol[\"Group\"] = 1] = \"Group\";\n /**\n * List-item separator.\n * Example: \"one, two, and three\"\n */\n NumberSymbol[NumberSymbol[\"List\"] = 2] = \"List\";\n /**\n * Sign for percentage (out of 100).\n * Example: 23.4%\n */\n NumberSymbol[NumberSymbol[\"PercentSign\"] = 3] = \"PercentSign\";\n /**\n * Sign for positive numbers.\n * Example: +23\n */\n NumberSymbol[NumberSymbol[\"PlusSign\"] = 4] = \"PlusSign\";\n /**\n * Sign for negative numbers.\n * Example: -23\n */\n NumberSymbol[NumberSymbol[\"MinusSign\"] = 5] = \"MinusSign\";\n /**\n * Computer notation for exponential value (n times a power of 10).\n * Example: 1.2E3\n */\n NumberSymbol[NumberSymbol[\"Exponential\"] = 6] = \"Exponential\";\n /**\n * Human-readable format of exponential.\n * Example: 1.2x103\n */\n NumberSymbol[NumberSymbol[\"SuperscriptingExponent\"] = 7] = \"SuperscriptingExponent\";\n /**\n * Sign for permille (out of 1000).\n * Example: 23.4‰\n */\n NumberSymbol[NumberSymbol[\"PerMille\"] = 8] = \"PerMille\";\n /**\n * Infinity, can be used with plus and minus.\n * Example: ∞, +∞, -∞\n */\n NumberSymbol[NumberSymbol[\"Infinity\"] = 9] = \"Infinity\";\n /**\n * Not a number.\n * Example: NaN\n */\n NumberSymbol[NumberSymbol[\"NaN\"] = 10] = \"NaN\";\n /**\n * Symbol used between time units.\n * Example: 10:52\n */\n NumberSymbol[NumberSymbol[\"TimeSeparator\"] = 11] = \"TimeSeparator\";\n /**\n * Decimal separator for currency values (fallback to `Decimal`).\n * Example: $2,345.67\n */\n NumberSymbol[NumberSymbol[\"CurrencyDecimal\"] = 12] = \"CurrencyDecimal\";\n /**\n * Group separator for currency values (fallback to `Group`).\n * Example: $2,345.67\n */\n NumberSymbol[NumberSymbol[\"CurrencyGroup\"] = 13] = \"CurrencyGroup\";\n})(NumberSymbol || (NumberSymbol = {}));\n/**\n * The value for each day of the week, based on the `en-US` locale\n *\n * @publicApi\n */\nvar WeekDay;\n(function (WeekDay) {\n WeekDay[WeekDay[\"Sunday\"] = 0] = \"Sunday\";\n WeekDay[WeekDay[\"Monday\"] = 1] = \"Monday\";\n WeekDay[WeekDay[\"Tuesday\"] = 2] = \"Tuesday\";\n WeekDay[WeekDay[\"Wednesday\"] = 3] = \"Wednesday\";\n WeekDay[WeekDay[\"Thursday\"] = 4] = \"Thursday\";\n WeekDay[WeekDay[\"Friday\"] = 5] = \"Friday\";\n WeekDay[WeekDay[\"Saturday\"] = 6] = \"Saturday\";\n})(WeekDay || (WeekDay = {}));\n/**\n * Retrieves the locale ID from the currently loaded locale.\n * The loaded locale could be, for example, a global one rather than a regional one.\n * @param locale A locale code, such as `fr-FR`.\n * @returns The locale code. For example, `fr`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleId(locale) {\n return ɵfindLocaleData(locale)[ɵLocaleDataIndex.LocaleId];\n}\n/**\n * Retrieves day period strings for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized period strings. For example, `[AM, PM]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDayPeriods(locale, formStyle, width) {\n const data = ɵfindLocaleData(locale);\n const amPmData = [\n data[ɵLocaleDataIndex.DayPeriodsFormat], data[ɵLocaleDataIndex.DayPeriodsStandalone]\n ];\n const amPm = getLastDefinedValue(amPmData, formStyle);\n return getLastDefinedValue(amPm, width);\n}\n/**\n * Retrieves days of the week for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example,`[Sunday, Monday, ... Saturday]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDayNames(locale, formStyle, width) {\n const data = ɵfindLocaleData(locale);\n const daysData = [data[ɵLocaleDataIndex.DaysFormat], data[ɵLocaleDataIndex.DaysStandalone]];\n const days = getLastDefinedValue(daysData, formStyle);\n return getLastDefinedValue(days, width);\n}\n/**\n * Retrieves months of the year for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example, `[January, February, ...]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleMonthNames(locale, formStyle, width) {\n const data = ɵfindLocaleData(locale);\n const monthsData = [data[ɵLocaleDataIndex.MonthsFormat], data[ɵLocaleDataIndex.MonthsStandalone]];\n const months = getLastDefinedValue(monthsData, formStyle);\n return getLastDefinedValue(months, width);\n}\n/**\n * Retrieves Gregorian-calendar eras for the given locale.\n * @param locale A locale code for the locale format rules to use.\n * @param width The required character width.\n\n * @returns An array of localized era strings.\n * For example, `[AD, BC]` for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleEraNames(locale, width) {\n const data = ɵfindLocaleData(locale);\n const erasData = data[ɵLocaleDataIndex.Eras];\n return getLastDefinedValue(erasData, width);\n}\n/**\n * Retrieves the first day of the week for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns A day index number, using the 0-based week-day index for `en-US`\n * (Sunday = 0, Monday = 1, ...).\n * For example, for `fr-FR`, returns 1 to indicate that the first day is Monday.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleFirstDayOfWeek(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.FirstDayOfWeek];\n}\n/**\n * Range of week days that are considered the week-end for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The range of day values, `[startDay, endDay]`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleWeekEndRange(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.WeekendRange];\n}\n/**\n * Retrieves a localized date-value formating string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formating string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDateFormat(locale, width) {\n const data = ɵfindLocaleData(locale);\n return getLastDefinedValue(data[ɵLocaleDataIndex.DateFormat], width);\n}\n/**\n * Retrieves a localized time-value formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n\n * @publicApi\n */\nfunction getLocaleTimeFormat(locale, width) {\n const data = ɵfindLocaleData(locale);\n return getLastDefinedValue(data[ɵLocaleDataIndex.TimeFormat], width);\n}\n/**\n * Retrieves a localized date-time formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see `FormatWidth`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDateTimeFormat(locale, width) {\n const data = ɵfindLocaleData(locale);\n const dateTimeFormatData = data[ɵLocaleDataIndex.DateTimeFormat];\n return getLastDefinedValue(dateTimeFormatData, width);\n}\n/**\n * Retrieves a localized number symbol that can be used to replace placeholders in number formats.\n * @param locale The locale code.\n * @param symbol The symbol to localize.\n * @returns The character for the localized symbol.\n * @see `NumberSymbol`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleNumberSymbol(locale, symbol) {\n const data = ɵfindLocaleData(locale);\n const res = data[ɵLocaleDataIndex.NumberSymbols][symbol];\n if (typeof res === 'undefined') {\n if (symbol === NumberSymbol.CurrencyDecimal) {\n return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Decimal];\n }\n else if (symbol === NumberSymbol.CurrencyGroup) {\n return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Group];\n }\n }\n return res;\n}\n/**\n * Retrieves a number format for a given locale.\n *\n * Numbers are formatted using patterns, like `#,###.00`. For example, the pattern `#,###.00`\n * when used to format the number 12345.678 could result in \"12'345,678\". That would happen if the\n * grouping separator for your language is an apostrophe, and the decimal separator is a comma.\n *\n * Important: The characters `.` `,` `0` `#` (and others below) are special placeholders\n * that stand for the decimal separator, and so on, and are NOT real characters.\n * You must NOT \"translate\" the placeholders. For example, don't change `.` to `,` even though in\n * your language the decimal point is written with a comma. The symbols should be replaced by the\n * local equivalents, using the appropriate `NumberSymbol` for your language.\n *\n * Here are the special characters used in number patterns:\n *\n * | Symbol | Meaning |\n * |--------|---------|\n * | . | Replaced automatically by the character used for the decimal point. |\n * | , | Replaced by the \"grouping\" (thousands) separator. |\n * | 0 | Replaced by a digit (or zero if there aren't enough digits). |\n * | # | Replaced by a digit (or nothing if there aren't enough). |\n * | ¤ | Replaced by a currency symbol, such as $ or USD. |\n * | % | Marks a percent format. The % symbol may change position, but must be retained. |\n * | E | Marks a scientific format. The E symbol may change position, but must be retained. |\n * | ' | Special characters used as literal characters are quoted with ASCII single quotes. |\n *\n * @param locale A locale code for the locale format rules to use.\n * @param type The type of numeric value to be formatted (such as `Decimal` or `Currency`.)\n * @returns The localized format string.\n * @see `NumberFormatStyle`\n * @see [CLDR website](http://cldr.unicode.org/translation/number-patterns)\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleNumberFormat(locale, type) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.NumberFormats][type];\n}\n/**\n * Retrieves the symbol used to represent the currency for the main country\n * corresponding to a given locale. For example, '$' for `en-US`.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The localized symbol character,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleCurrencySymbol(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.CurrencySymbol] || null;\n}\n/**\n * Retrieves the name of the currency for the main country corresponding\n * to a given locale. For example, 'US Dollar' for `en-US`.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency name,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleCurrencyName(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.CurrencyName] || null;\n}\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * @param locale The code of the locale whose currency code we want.\n * @returns The code of the default currency for the given locale.\n *\n * @publicApi\n */\nfunction getLocaleCurrencyCode(locale) {\n return ɵgetLocaleCurrencyCode(locale);\n}\n/**\n * Retrieves the currency values for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency values.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n */\nfunction getLocaleCurrencies(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.Currencies];\n}\n/**\n * @alias core/ɵgetLocalePluralCase\n * @publicApi\n */\nconst getLocalePluralCase = ɵgetLocalePluralCase;\nfunction checkFullData(data) {\n if (!data[ɵLocaleDataIndex.ExtraData]) {\n throw new Error(`Missing extra locale data for the locale \"${data[ɵLocaleDataIndex\n .LocaleId]}\". Use \"registerLocaleData\" to load new data. See the \"I18n guide\" on angular.io to know more.`);\n }\n}\n/**\n * Retrieves locale-specific rules used to determine which day period to use\n * when more than one period is defined for a locale.\n *\n * There is a rule for each defined day period. The\n * first rule is applied to the first day period and so on.\n * Fall back to AM/PM when no rules are available.\n *\n * A rule can specify a period as time range, or as a single time value.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n-common-format-data-locale).\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The rules for the locale, a single time value or array of *from-time, to-time*,\n * or null if no periods are available.\n *\n * @see `getLocaleExtraDayPeriods()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriodRules(locale) {\n const data = ɵfindLocaleData(locale);\n checkFullData(data);\n const rules = data[ɵLocaleDataIndex.ExtraData][2 /* ExtraDayPeriodsRules */] || [];\n return rules.map((rule) => {\n if (typeof rule === 'string') {\n return extractTime(rule);\n }\n return [extractTime(rule[0]), extractTime(rule[1])];\n });\n}\n/**\n * Retrieves locale-specific day periods, which indicate roughly how a day is broken up\n * in different languages.\n * For example, for `en-US`, periods are morning, noon, afternoon, evening, and midnight.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n-common-format-data-locale).\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns The translated day-period strings.\n * @see `getLocaleExtraDayPeriodRules()`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriods(locale, formStyle, width) {\n const data = ɵfindLocaleData(locale);\n checkFullData(data);\n const dayPeriodsData = [\n data[ɵLocaleDataIndex.ExtraData][0 /* ExtraDayPeriodFormats */],\n data[ɵLocaleDataIndex.ExtraData][1 /* ExtraDayPeriodStandalone */]\n ];\n const dayPeriods = getLastDefinedValue(dayPeriodsData, formStyle) || [];\n return getLastDefinedValue(dayPeriods, width) || [];\n}\n/**\n * Retrieves the writing direction of a specified locale\n * @param locale A locale code for the locale format rules to use.\n * @publicApi\n * @returns 'rtl' or 'ltr'\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n */\nfunction getLocaleDirection(locale) {\n const data = ɵfindLocaleData(locale);\n return data[ɵLocaleDataIndex.Directionality];\n}\n/**\n * Retrieves the first value that is defined in an array, going backwards from an index position.\n *\n * To avoid repeating the same data (as when the \"format\" and \"standalone\" forms are the same)\n * add the first value to the locale data arrays, and add other values only if they are different.\n *\n * @param data The data array to retrieve from.\n * @param index A 0-based index into the array to start from.\n * @returns The value immediately before the given index position.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLastDefinedValue(data, index) {\n for (let i = index; i > -1; i--) {\n if (typeof data[i] !== 'undefined') {\n return data[i];\n }\n }\n throw new Error('Locale data API: locale data undefined');\n}\n/**\n * Extracts the hours and minutes from a string like \"15:45\"\n */\nfunction extractTime(time) {\n const [h, m] = time.split(':');\n return { hours: +h, minutes: +m };\n}\n/**\n * Retrieves the currency symbol for a given currency code.\n *\n * For example, for the default `en-US` locale, the code `USD` can\n * be represented by the narrow symbol `$` or the wide symbol `US$`.\n *\n * @param code The currency code.\n * @param format The format, `wide` or `narrow`.\n * @param locale A locale code for the locale format rules to use.\n *\n * @returns The symbol, or the currency code if no symbol is available.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getCurrencySymbol(code, format, locale = 'en') {\n const currency = getLocaleCurrencies(locale)[code] || CURRENCIES_EN[code] || [];\n const symbolNarrow = currency[1 /* SymbolNarrow */];\n if (format === 'narrow' && typeof symbolNarrow === 'string') {\n return symbolNarrow;\n }\n return currency[0 /* Symbol */] || code;\n}\n// Most currencies have cents, that's why the default is 2\nconst DEFAULT_NB_OF_CURRENCY_DIGITS = 2;\n/**\n * Reports the number of decimal digits for a given currency.\n * The value depends upon the presence of cents in that particular currency.\n *\n * @param code The currency code.\n * @returns The number of decimal digits, typically 0 or 2.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getNumberOfCurrencyDigits(code) {\n let digits;\n const currency = CURRENCIES_EN[code];\n if (currency) {\n digits = currency[2 /* NbOfDigits */];\n }\n return typeof digits === 'number' ? digits : DEFAULT_NB_OF_CURRENCY_DIGITS;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst ISO8601_DATE_REGEX = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n// 1 2 3 4 5 6 7 8 9 10 11\nconst NAMED_FORMATS = {};\nconst DATE_FORMATS_SPLIT = /((?:[^BEGHLMOSWYZabcdhmswyz']+)|(?:'(?:[^']|'')*')|(?:G{1,5}|y{1,4}|Y{1,4}|M{1,5}|L{1,5}|w{1,2}|W{1}|d{1,2}|E{1,6}|c{1,6}|a{1,5}|b{1,5}|B{1,5}|h{1,2}|H{1,2}|m{1,2}|s{1,2}|S{1,3}|z{1,4}|Z{1,5}|O{1,4}))([\\s\\S]*)/;\nvar ZoneWidth;\n(function (ZoneWidth) {\n ZoneWidth[ZoneWidth[\"Short\"] = 0] = \"Short\";\n ZoneWidth[ZoneWidth[\"ShortGMT\"] = 1] = \"ShortGMT\";\n ZoneWidth[ZoneWidth[\"Long\"] = 2] = \"Long\";\n ZoneWidth[ZoneWidth[\"Extended\"] = 3] = \"Extended\";\n})(ZoneWidth || (ZoneWidth = {}));\nvar DateType;\n(function (DateType) {\n DateType[DateType[\"FullYear\"] = 0] = \"FullYear\";\n DateType[DateType[\"Month\"] = 1] = \"Month\";\n DateType[DateType[\"Date\"] = 2] = \"Date\";\n DateType[DateType[\"Hours\"] = 3] = \"Hours\";\n DateType[DateType[\"Minutes\"] = 4] = \"Minutes\";\n DateType[DateType[\"Seconds\"] = 5] = \"Seconds\";\n DateType[DateType[\"FractionalSeconds\"] = 6] = \"FractionalSeconds\";\n DateType[DateType[\"Day\"] = 7] = \"Day\";\n})(DateType || (DateType = {}));\nvar TranslationType;\n(function (TranslationType) {\n TranslationType[TranslationType[\"DayPeriods\"] = 0] = \"DayPeriods\";\n TranslationType[TranslationType[\"Days\"] = 1] = \"Days\";\n TranslationType[TranslationType[\"Months\"] = 2] = \"Months\";\n TranslationType[TranslationType[\"Eras\"] = 3] = \"Eras\";\n})(TranslationType || (TranslationType = {}));\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date according to locale rules.\n *\n * @param value The date to format, as a Date, or a number (milliseconds since UTC epoch)\n * or an [ISO date-time string](https://www.w3.org/TR/NOTE-datetime).\n * @param format The date-time components to include. See `DatePipe` for details.\n * @param locale A locale code for the locale format rules to use.\n * @param timezone The time zone. A time zone offset from GMT (such as `'+0430'`),\n * or a standard UTC/GMT or continental US time zone abbreviation.\n * If not specified, uses host system settings.\n *\n * @returns The formatted date string.\n *\n * @see `DatePipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatDate(value, format, locale, timezone) {\n let date = toDate(value);\n const namedFormat = getNamedFormat(locale, format);\n format = namedFormat || format;\n let parts = [];\n let match;\n while (format) {\n match = DATE_FORMATS_SPLIT.exec(format);\n if (match) {\n parts = parts.concat(match.slice(1));\n const part = parts.pop();\n if (!part) {\n break;\n }\n format = part;\n }\n else {\n parts.push(format);\n break;\n }\n }\n let dateTimezoneOffset = date.getTimezoneOffset();\n if (timezone) {\n dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n date = convertTimezoneToLocal(date, timezone, true);\n }\n let text = '';\n parts.forEach(value => {\n const dateFormatter = getDateFormatter(value);\n text += dateFormatter ?\n dateFormatter(date, locale, dateTimezoneOffset) :\n value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n });\n return text;\n}\n/**\n * Create a new Date object with the given date value, and the time set to midnight.\n *\n * We cannot use `new Date(year, month, date)` because it maps years between 0 and 99 to 1900-1999.\n * See: https://github.com/angular/angular/issues/40377\n *\n * Note that this function returns a Date object whose time is midnight in the current locale's\n * timezone. In the future we might want to change this to be midnight in UTC, but this would be a\n * considerable breaking change.\n */\nfunction createDate(year, month, date) {\n // The `newDate` is set to midnight (UTC) on January 1st 1970.\n // - In PST this will be December 31st 1969 at 4pm.\n // - In GMT this will be January 1st 1970 at 1am.\n // Note that they even have different years, dates and months!\n const newDate = new Date(0);\n // `setFullYear()` allows years like 0001 to be set correctly. This function does not\n // change the internal time of the date.\n // Consider calling `setFullYear(2019, 8, 20)` (September 20, 2019).\n // - In PST this will now be September 20, 2019 at 4pm\n // - In GMT this will now be September 20, 2019 at 1am\n newDate.setFullYear(year, month, date);\n // We want the final date to be at local midnight, so we reset the time.\n // - In PST this will now be September 20, 2019 at 12am\n // - In GMT this will now be September 20, 2019 at 12am\n newDate.setHours(0, 0, 0);\n return newDate;\n}\nfunction getNamedFormat(locale, format) {\n const localeId = getLocaleId(locale);\n NAMED_FORMATS[localeId] = NAMED_FORMATS[localeId] || {};\n if (NAMED_FORMATS[localeId][format]) {\n return NAMED_FORMATS[localeId][format];\n }\n let formatValue = '';\n switch (format) {\n case 'shortDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Short);\n break;\n case 'mediumDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Medium);\n break;\n case 'longDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Long);\n break;\n case 'fullDate':\n formatValue = getLocaleDateFormat(locale, FormatWidth.Full);\n break;\n case 'shortTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Short);\n break;\n case 'mediumTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Medium);\n break;\n case 'longTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Long);\n break;\n case 'fullTime':\n formatValue = getLocaleTimeFormat(locale, FormatWidth.Full);\n break;\n case 'short':\n const shortTime = getNamedFormat(locale, 'shortTime');\n const shortDate = getNamedFormat(locale, 'shortDate');\n formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Short), [shortTime, shortDate]);\n break;\n case 'medium':\n const mediumTime = getNamedFormat(locale, 'mediumTime');\n const mediumDate = getNamedFormat(locale, 'mediumDate');\n formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Medium), [mediumTime, mediumDate]);\n break;\n case 'long':\n const longTime = getNamedFormat(locale, 'longTime');\n const longDate = getNamedFormat(locale, 'longDate');\n formatValue =\n formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Long), [longTime, longDate]);\n break;\n case 'full':\n const fullTime = getNamedFormat(locale, 'fullTime');\n const fullDate = getNamedFormat(locale, 'fullDate');\n formatValue =\n formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Full), [fullTime, fullDate]);\n break;\n }\n if (formatValue) {\n NAMED_FORMATS[localeId][format] = formatValue;\n }\n return formatValue;\n}\nfunction formatDateTime(str, opt_values) {\n if (opt_values) {\n str = str.replace(/\\{([^}]+)}/g, function (match, key) {\n return (opt_values != null && key in opt_values) ? opt_values[key] : match;\n });\n }\n return str;\n}\nfunction padNumber(num, digits, minusSign = '-', trim, negWrap) {\n let neg = '';\n if (num < 0 || (negWrap && num <= 0)) {\n if (negWrap) {\n num = -num + 1;\n }\n else {\n num = -num;\n neg = minusSign;\n }\n }\n let strNum = String(num);\n while (strNum.length < digits) {\n strNum = '0' + strNum;\n }\n if (trim) {\n strNum = strNum.substr(strNum.length - digits);\n }\n return neg + strNum;\n}\nfunction formatFractionalSeconds(milliseconds, digits) {\n const strMs = padNumber(milliseconds, 3);\n return strMs.substr(0, digits);\n}\n/**\n * Returns a date formatter that transforms a date into its locale digit representation\n */\nfunction dateGetter(name, size, offset = 0, trim = false, negWrap = false) {\n return function (date, locale) {\n let part = getDatePart(name, date);\n if (offset > 0 || part > -offset) {\n part += offset;\n }\n if (name === DateType.Hours) {\n if (part === 0 && offset === -12) {\n part = 12;\n }\n }\n else if (name === DateType.FractionalSeconds) {\n return formatFractionalSeconds(part, size);\n }\n const localeMinus = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n return padNumber(part, size, localeMinus, trim, negWrap);\n };\n}\nfunction getDatePart(part, date) {\n switch (part) {\n case DateType.FullYear:\n return date.getFullYear();\n case DateType.Month:\n return date.getMonth();\n case DateType.Date:\n return date.getDate();\n case DateType.Hours:\n return date.getHours();\n case DateType.Minutes:\n return date.getMinutes();\n case DateType.Seconds:\n return date.getSeconds();\n case DateType.FractionalSeconds:\n return date.getMilliseconds();\n case DateType.Day:\n return date.getDay();\n default:\n throw new Error(`Unknown DateType value \"${part}\".`);\n }\n}\n/**\n * Returns a date formatter that transforms a date into its locale string representation\n */\nfunction dateStrGetter(name, width, form = FormStyle.Format, extended = false) {\n return function (date, locale) {\n return getDateTranslation(date, locale, name, width, form, extended);\n };\n}\n/**\n * Returns the locale translation of a date for a given form, type and width\n */\nfunction getDateTranslation(date, locale, name, width, form, extended) {\n switch (name) {\n case TranslationType.Months:\n return getLocaleMonthNames(locale, form, width)[date.getMonth()];\n case TranslationType.Days:\n return getLocaleDayNames(locale, form, width)[date.getDay()];\n case TranslationType.DayPeriods:\n const currentHours = date.getHours();\n const currentMinutes = date.getMinutes();\n if (extended) {\n const rules = getLocaleExtraDayPeriodRules(locale);\n const dayPeriods = getLocaleExtraDayPeriods(locale, form, width);\n const index = rules.findIndex(rule => {\n if (Array.isArray(rule)) {\n // morning, afternoon, evening, night\n const [from, to] = rule;\n const afterFrom = currentHours >= from.hours && currentMinutes >= from.minutes;\n const beforeTo = (currentHours < to.hours ||\n (currentHours === to.hours && currentMinutes < to.minutes));\n // We must account for normal rules that span a period during the day (e.g. 6am-9am)\n // where `from` is less (earlier) than `to`. But also rules that span midnight (e.g.\n // 10pm - 5am) where `from` is greater (later!) than `to`.\n //\n // In the first case the current time must be BOTH after `from` AND before `to`\n // (e.g. 8am is after 6am AND before 10am).\n //\n // In the second case the current time must be EITHER after `from` OR before `to`\n // (e.g. 4am is before 5am but not after 10pm; and 11pm is not before 5am but it is\n // after 10pm).\n if (from.hours < to.hours) {\n if (afterFrom && beforeTo) {\n return true;\n }\n }\n else if (afterFrom || beforeTo) {\n return true;\n }\n }\n else { // noon or midnight\n if (rule.hours === currentHours && rule.minutes === currentMinutes) {\n return true;\n }\n }\n return false;\n });\n if (index !== -1) {\n return dayPeriods[index];\n }\n }\n // if no rules for the day periods, we use am/pm by default\n return getLocaleDayPeriods(locale, form, width)[currentHours < 12 ? 0 : 1];\n case TranslationType.Eras:\n return getLocaleEraNames(locale, width)[date.getFullYear() <= 0 ? 0 : 1];\n default:\n // This default case is not needed by TypeScript compiler, as the switch is exhaustive.\n // However Closure Compiler does not understand that and reports an error in typed mode.\n // The `throw new Error` below works around the problem, and the unexpected: never variable\n // makes sure tsc still checks this code is unreachable.\n const unexpected = name;\n throw new Error(`unexpected translation type ${unexpected}`);\n }\n}\n/**\n * Returns a date formatter that transforms a date and an offset into a timezone with ISO8601 or\n * GMT format depending on the width (eg: short = +0430, short:GMT = GMT+4, long = GMT+04:30,\n * extended = +04:30)\n */\nfunction timeZoneGetter(width) {\n return function (date, locale, offset) {\n const zone = -1 * offset;\n const minusSign = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n const hours = zone > 0 ? Math.floor(zone / 60) : Math.ceil(zone / 60);\n switch (width) {\n case ZoneWidth.Short:\n return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n case ZoneWidth.ShortGMT:\n return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 1, minusSign);\n case ZoneWidth.Long:\n return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n case ZoneWidth.Extended:\n if (offset === 0) {\n return 'Z';\n }\n else {\n return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n padNumber(Math.abs(zone % 60), 2, minusSign);\n }\n default:\n throw new Error(`Unknown zone width \"${width}\"`);\n }\n };\n}\nconst JANUARY = 0;\nconst THURSDAY = 4;\nfunction getFirstThursdayOfYear(year) {\n const firstDayOfYear = createDate(year, JANUARY, 1).getDay();\n return createDate(year, 0, 1 + ((firstDayOfYear <= THURSDAY) ? THURSDAY : THURSDAY + 7) - firstDayOfYear);\n}\nfunction getThursdayThisWeek(datetime) {\n return createDate(datetime.getFullYear(), datetime.getMonth(), datetime.getDate() + (THURSDAY - datetime.getDay()));\n}\nfunction weekGetter(size, monthBased = false) {\n return function (date, locale) {\n let result;\n if (monthBased) {\n const nbDaysBefore1stDayOfMonth = new Date(date.getFullYear(), date.getMonth(), 1).getDay() - 1;\n const today = date.getDate();\n result = 1 + Math.floor((today + nbDaysBefore1stDayOfMonth) / 7);\n }\n else {\n const thisThurs = getThursdayThisWeek(date);\n // Some days of a year are part of next year according to ISO 8601.\n // Compute the firstThurs from the year of this week's Thursday\n const firstThurs = getFirstThursdayOfYear(thisThurs.getFullYear());\n const diff = thisThurs.getTime() - firstThurs.getTime();\n result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n }\n return padNumber(result, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n };\n}\n/**\n * Returns a date formatter that provides the week-numbering year for the input date.\n */\nfunction weekNumberingYearGetter(size, trim = false) {\n return function (date, locale) {\n const thisThurs = getThursdayThisWeek(date);\n const weekNumberingYear = thisThurs.getFullYear();\n return padNumber(weekNumberingYear, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign), trim);\n };\n}\nconst DATE_FORMATS = {};\n// Based on CLDR formats:\n// See complete list: http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table\n// See also explanations: http://cldr.unicode.org/translation/date-time\n// TODO(ocombe): support all missing cldr formats: U, Q, D, F, e, j, J, C, A, v, V, X, x\nfunction getDateFormatter(format) {\n if (DATE_FORMATS[format]) {\n return DATE_FORMATS[format];\n }\n let formatter;\n switch (format) {\n // Era name (AD/BC)\n case 'G':\n case 'GG':\n case 'GGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Abbreviated);\n break;\n case 'GGGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Wide);\n break;\n case 'GGGGG':\n formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Narrow);\n break;\n // 1 digit representation of the year, e.g. (AD 1 => 1, AD 199 => 199)\n case 'y':\n formatter = dateGetter(DateType.FullYear, 1, 0, false, true);\n break;\n // 2 digit representation of the year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n case 'yy':\n formatter = dateGetter(DateType.FullYear, 2, 0, true, true);\n break;\n // 3 digit representation of the year, padded (000-999). (e.g. AD 2001 => 01, AD 2010 => 10)\n case 'yyy':\n formatter = dateGetter(DateType.FullYear, 3, 0, false, true);\n break;\n // 4 digit representation of the year (e.g. AD 1 => 0001, AD 2010 => 2010)\n case 'yyyy':\n formatter = dateGetter(DateType.FullYear, 4, 0, false, true);\n break;\n // 1 digit representation of the week-numbering year, e.g. (AD 1 => 1, AD 199 => 199)\n case 'Y':\n formatter = weekNumberingYearGetter(1);\n break;\n // 2 digit representation of the week-numbering year, padded (00-99). (e.g. AD 2001 => 01, AD\n // 2010 => 10)\n case 'YY':\n formatter = weekNumberingYearGetter(2, true);\n break;\n // 3 digit representation of the week-numbering year, padded (000-999). (e.g. AD 1 => 001, AD\n // 2010 => 2010)\n case 'YYY':\n formatter = weekNumberingYearGetter(3);\n break;\n // 4 digit representation of the week-numbering year (e.g. AD 1 => 0001, AD 2010 => 2010)\n case 'YYYY':\n formatter = weekNumberingYearGetter(4);\n break;\n // Month of the year (1-12), numeric\n case 'M':\n case 'L':\n formatter = dateGetter(DateType.Month, 1, 1);\n break;\n case 'MM':\n case 'LL':\n formatter = dateGetter(DateType.Month, 2, 1);\n break;\n // Month of the year (January, ...), string, format\n case 'MMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated);\n break;\n case 'MMMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Wide);\n break;\n case 'MMMMM':\n formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Narrow);\n break;\n // Month of the year (January, ...), string, standalone\n case 'LLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated, FormStyle.Standalone);\n break;\n case 'LLLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Wide, FormStyle.Standalone);\n break;\n case 'LLLLL':\n formatter =\n dateStrGetter(TranslationType.Months, TranslationWidth.Narrow, FormStyle.Standalone);\n break;\n // Week of the year (1, ... 52)\n case 'w':\n formatter = weekGetter(1);\n break;\n case 'ww':\n formatter = weekGetter(2);\n break;\n // Week of the month (1, ...)\n case 'W':\n formatter = weekGetter(1, true);\n break;\n // Day of the month (1-31)\n case 'd':\n formatter = dateGetter(DateType.Date, 1);\n break;\n case 'dd':\n formatter = dateGetter(DateType.Date, 2);\n break;\n // Day of the Week StandAlone (1, 1, Mon, Monday, M, Mo)\n case 'c':\n case 'cc':\n formatter = dateGetter(DateType.Day, 1);\n break;\n case 'ccc':\n formatter =\n dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated, FormStyle.Standalone);\n break;\n case 'cccc':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide, FormStyle.Standalone);\n break;\n case 'ccccc':\n formatter =\n dateStrGetter(TranslationType.Days, TranslationWidth.Narrow, FormStyle.Standalone);\n break;\n case 'cccccc':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short, FormStyle.Standalone);\n break;\n // Day of the Week\n case 'E':\n case 'EE':\n case 'EEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated);\n break;\n case 'EEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide);\n break;\n case 'EEEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Narrow);\n break;\n case 'EEEEEE':\n formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short);\n break;\n // Generic period of the day (am-pm)\n case 'a':\n case 'aa':\n case 'aaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated);\n break;\n case 'aaaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide);\n break;\n case 'aaaaa':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow);\n break;\n // Extended period of the day (midnight, at night, ...), standalone\n case 'b':\n case 'bb':\n case 'bbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Standalone, true);\n break;\n case 'bbbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Standalone, true);\n break;\n case 'bbbbb':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Standalone, true);\n break;\n // Extended period of the day (midnight, night, ...), standalone\n case 'B':\n case 'BB':\n case 'BBB':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Format, true);\n break;\n case 'BBBB':\n formatter =\n dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Format, true);\n break;\n case 'BBBBB':\n formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Format, true);\n break;\n // Hour in AM/PM, (1-12)\n case 'h':\n formatter = dateGetter(DateType.Hours, 1, -12);\n break;\n case 'hh':\n formatter = dateGetter(DateType.Hours, 2, -12);\n break;\n // Hour of the day (0-23)\n case 'H':\n formatter = dateGetter(DateType.Hours, 1);\n break;\n // Hour in day, padded (00-23)\n case 'HH':\n formatter = dateGetter(DateType.Hours, 2);\n break;\n // Minute of the hour (0-59)\n case 'm':\n formatter = dateGetter(DateType.Minutes, 1);\n break;\n case 'mm':\n formatter = dateGetter(DateType.Minutes, 2);\n break;\n // Second of the minute (0-59)\n case 's':\n formatter = dateGetter(DateType.Seconds, 1);\n break;\n case 'ss':\n formatter = dateGetter(DateType.Seconds, 2);\n break;\n // Fractional second\n case 'S':\n formatter = dateGetter(DateType.FractionalSeconds, 1);\n break;\n case 'SS':\n formatter = dateGetter(DateType.FractionalSeconds, 2);\n break;\n case 'SSS':\n formatter = dateGetter(DateType.FractionalSeconds, 3);\n break;\n // Timezone ISO8601 short format (-0430)\n case 'Z':\n case 'ZZ':\n case 'ZZZ':\n formatter = timeZoneGetter(ZoneWidth.Short);\n break;\n // Timezone ISO8601 extended format (-04:30)\n case 'ZZZZZ':\n formatter = timeZoneGetter(ZoneWidth.Extended);\n break;\n // Timezone GMT short format (GMT+4)\n case 'O':\n case 'OO':\n case 'OOO':\n // Should be location, but fallback to format O instead because we don't have the data yet\n case 'z':\n case 'zz':\n case 'zzz':\n formatter = timeZoneGetter(ZoneWidth.ShortGMT);\n break;\n // Timezone GMT long format (GMT+0430)\n case 'OOOO':\n case 'ZZZZ':\n // Should be location, but fallback to format O instead because we don't have the data yet\n case 'zzzz':\n formatter = timeZoneGetter(ZoneWidth.Long);\n break;\n default:\n return null;\n }\n DATE_FORMATS[format] = formatter;\n return formatter;\n}\nfunction timezoneToOffset(timezone, fallback) {\n // Support: IE 11 only, Edge 13-15+\n // IE/Edge do not \"understand\" colon (`:`) in timezone\n timezone = timezone.replace(/:/g, '');\n const requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\nfunction addDateMinutes(date, minutes) {\n date = new Date(date.getTime());\n date.setMinutes(date.getMinutes() + minutes);\n return date;\n}\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n const reverseValue = reverse ? -1 : 1;\n const dateTimezoneOffset = date.getTimezoneOffset();\n const timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n return addDateMinutes(date, reverseValue * (timezoneOffset - dateTimezoneOffset));\n}\n/**\n * Converts a value to date.\n *\n * Supported input formats:\n * - `Date`\n * - number: timestamp\n * - string: numeric (e.g. \"1234\"), ISO and date strings in a format supported by\n * [Date.parse()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse).\n * Note: ISO strings without time return a date without timeoffset.\n *\n * Throws if unable to convert to a date.\n */\nfunction toDate(value) {\n if (isDate(value)) {\n return value;\n }\n if (typeof value === 'number' && !isNaN(value)) {\n return new Date(value);\n }\n if (typeof value === 'string') {\n value = value.trim();\n if (/^(\\d{4}(-\\d{1,2}(-\\d{1,2})?)?)$/.test(value)) {\n /* For ISO Strings without time the day, month and year must be extracted from the ISO String\n before Date creation to avoid time offset and errors in the new Date.\n If we only replace '-' with ',' in the ISO String (\"2015,01,01\"), and try to create a new\n date, some browsers (e.g. IE 9) will throw an invalid Date error.\n If we leave the '-' (\"2015-01-01\") and try to create a new Date(\"2015-01-01\") the timeoffset\n is applied.\n Note: ISO months are 0 for January, 1 for February, ... */\n const [y, m = 1, d = 1] = value.split('-').map((val) => +val);\n return createDate(y, m - 1, d);\n }\n const parsedNb = parseFloat(value);\n // any string that only contains numbers, like \"1234\" but not like \"1234hello\"\n if (!isNaN(value - parsedNb)) {\n return new Date(parsedNb);\n }\n let match;\n if (match = value.match(ISO8601_DATE_REGEX)) {\n return isoStringToDate(match);\n }\n }\n const date = new Date(value);\n if (!isDate(date)) {\n throw new Error(`Unable to convert \"${value}\" into a date`);\n }\n return date;\n}\n/**\n * Converts a date in ISO8601 to a Date.\n * Used instead of `Date.parse` because of browser discrepancies.\n */\nfunction isoStringToDate(match) {\n const date = new Date(0);\n let tzHour = 0;\n let tzMin = 0;\n // match[8] means that the string contains \"Z\" (UTC) or a timezone like \"+01:00\" or \"+0100\"\n const dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;\n const timeSetter = match[8] ? date.setUTCHours : date.setHours;\n // if there is a timezone defined like \"+01:00\" or \"+0100\"\n if (match[9]) {\n tzHour = Number(match[9] + match[10]);\n tzMin = Number(match[9] + match[11]);\n }\n dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));\n const h = Number(match[4] || 0) - tzHour;\n const m = Number(match[5] || 0) - tzMin;\n const s = Number(match[6] || 0);\n // The ECMAScript specification (https://www.ecma-international.org/ecma-262/5.1/#sec-15.9.1.11)\n // defines that `DateTime` milliseconds should always be rounded down, so that `999.9ms`\n // becomes `999ms`.\n const ms = Math.floor(parseFloat('0.' + (match[7] || 0)) * 1000);\n timeSetter.call(date, h, m, s, ms);\n return date;\n}\nfunction isDate(value) {\n return value instanceof Date && !isNaN(value.valueOf());\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst NUMBER_FORMAT_REGEXP = /^(\\d+)?\\.((\\d+)(-(\\d+))?)?$/;\nconst MAX_DIGITS = 22;\nconst DECIMAL_SEP = '.';\nconst ZERO_CHAR = '0';\nconst PATTERN_SEP = ';';\nconst GROUP_SEP = ',';\nconst DIGIT_CHAR = '#';\nconst CURRENCY_CHAR = '¤';\nconst PERCENT_CHAR = '%';\n/**\n * Transforms a number to a locale string based on a style and a format.\n */\nfunction formatNumberToLocaleString(value, pattern, locale, groupSymbol, decimalSymbol, digitsInfo, isPercent = false) {\n let formattedText = '';\n let isZero = false;\n if (!isFinite(value)) {\n formattedText = getLocaleNumberSymbol(locale, NumberSymbol.Infinity);\n }\n else {\n let parsedNumber = parseNumber(value);\n if (isPercent) {\n parsedNumber = toPercent(parsedNumber);\n }\n let minInt = pattern.minInt;\n let minFraction = pattern.minFrac;\n let maxFraction = pattern.maxFrac;\n if (digitsInfo) {\n const parts = digitsInfo.match(NUMBER_FORMAT_REGEXP);\n if (parts === null) {\n throw new Error(`${digitsInfo} is not a valid digit info`);\n }\n const minIntPart = parts[1];\n const minFractionPart = parts[3];\n const maxFractionPart = parts[5];\n if (minIntPart != null) {\n minInt = parseIntAutoRadix(minIntPart);\n }\n if (minFractionPart != null) {\n minFraction = parseIntAutoRadix(minFractionPart);\n }\n if (maxFractionPart != null) {\n maxFraction = parseIntAutoRadix(maxFractionPart);\n }\n else if (minFractionPart != null && minFraction > maxFraction) {\n maxFraction = minFraction;\n }\n }\n roundNumber(parsedNumber, minFraction, maxFraction);\n let digits = parsedNumber.digits;\n let integerLen = parsedNumber.integerLen;\n const exponent = parsedNumber.exponent;\n let decimals = [];\n isZero = digits.every(d => !d);\n // pad zeros for small numbers\n for (; integerLen < minInt; integerLen++) {\n digits.unshift(0);\n }\n // pad zeros for small numbers\n for (; integerLen < 0; integerLen++) {\n digits.unshift(0);\n }\n // extract decimals digits\n if (integerLen > 0) {\n decimals = digits.splice(integerLen, digits.length);\n }\n else {\n decimals = digits;\n digits = [0];\n }\n // format the integer digits with grouping separators\n const groups = [];\n if (digits.length >= pattern.lgSize) {\n groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n }\n while (digits.length > pattern.gSize) {\n groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n }\n if (digits.length) {\n groups.unshift(digits.join(''));\n }\n formattedText = groups.join(getLocaleNumberSymbol(locale, groupSymbol));\n // append the decimal digits\n if (decimals.length) {\n formattedText += getLocaleNumberSymbol(locale, decimalSymbol) + decimals.join('');\n }\n if (exponent) {\n formattedText += getLocaleNumberSymbol(locale, NumberSymbol.Exponential) + '+' + exponent;\n }\n }\n if (value < 0 && !isZero) {\n formattedText = pattern.negPre + formattedText + pattern.negSuf;\n }\n else {\n formattedText = pattern.posPre + formattedText + pattern.posSuf;\n }\n return formattedText;\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as currency using locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param currency A string containing the currency symbol or its name,\n * such as \"$\" or \"Canadian Dollar\". Used in output string, but does not affect the operation\n * of the function.\n * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217)\n * currency code, such as `USD` for the US dollar and `EUR` for the euro.\n * Used to determine the number of digits in the decimal part.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted currency value.\n *\n * @see `formatNumber()`\n * @see `DecimalPipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatCurrency(value, locale, currency, currencyCode, digitsInfo) {\n const format = getLocaleNumberFormat(locale, NumberFormatStyle.Currency);\n const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n pattern.minFrac = getNumberOfCurrencyDigits(currencyCode);\n pattern.maxFrac = pattern.minFrac;\n const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.CurrencyGroup, NumberSymbol.CurrencyDecimal, digitsInfo);\n return res\n .replace(CURRENCY_CHAR, currency)\n // if we have 2 time the currency character, the second one is ignored\n .replace(CURRENCY_CHAR, '')\n // If there is a spacing between currency character and the value and\n // the currency character is supressed by passing an empty string, the\n // spacing character would remain as part of the string. Then we\n // should remove it.\n .trim();\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as a percentage according to locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted percentage value.\n *\n * @see `formatNumber()`\n * @see `DecimalPipe`\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n * @publicApi\n *\n */\nfunction formatPercent(value, locale, digitsInfo) {\n const format = getLocaleNumberFormat(locale, NumberFormatStyle.Percent);\n const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo, true);\n return res.replace(new RegExp(PERCENT_CHAR, 'g'), getLocaleNumberSymbol(locale, NumberSymbol.PercentSign));\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as text, with group sizing, separator, and other\n * parameters based on the locale.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted text string.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatNumber(value, locale, digitsInfo) {\n const format = getLocaleNumberFormat(locale, NumberFormatStyle.Decimal);\n const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n return formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo);\n}\nfunction parseNumberFormat(format, minusSign = '-') {\n const p = {\n minInt: 1,\n minFrac: 0,\n maxFrac: 0,\n posPre: '',\n posSuf: '',\n negPre: '',\n negSuf: '',\n gSize: 0,\n lgSize: 0\n };\n const patternParts = format.split(PATTERN_SEP);\n const positive = patternParts[0];\n const negative = patternParts[1];\n const positiveParts = positive.indexOf(DECIMAL_SEP) !== -1 ?\n positive.split(DECIMAL_SEP) :\n [\n positive.substring(0, positive.lastIndexOf(ZERO_CHAR) + 1),\n positive.substring(positive.lastIndexOf(ZERO_CHAR) + 1)\n ], integer = positiveParts[0], fraction = positiveParts[1] || '';\n p.posPre = integer.substr(0, integer.indexOf(DIGIT_CHAR));\n for (let i = 0; i < fraction.length; i++) {\n const ch = fraction.charAt(i);\n if (ch === ZERO_CHAR) {\n p.minFrac = p.maxFrac = i + 1;\n }\n else if (ch === DIGIT_CHAR) {\n p.maxFrac = i + 1;\n }\n else {\n p.posSuf += ch;\n }\n }\n const groups = integer.split(GROUP_SEP);\n p.gSize = groups[1] ? groups[1].length : 0;\n p.lgSize = (groups[2] || groups[1]) ? (groups[2] || groups[1]).length : 0;\n if (negative) {\n const trunkLen = positive.length - p.posPre.length - p.posSuf.length, pos = negative.indexOf(DIGIT_CHAR);\n p.negPre = negative.substr(0, pos).replace(/'/g, '');\n p.negSuf = negative.substr(pos + trunkLen).replace(/'/g, '');\n }\n else {\n p.negPre = minusSign + p.posPre;\n p.negSuf = p.posSuf;\n }\n return p;\n}\n// Transforms a parsed number into a percentage by multiplying it by 100\nfunction toPercent(parsedNumber) {\n // if the number is 0, don't do anything\n if (parsedNumber.digits[0] === 0) {\n return parsedNumber;\n }\n // Getting the current number of decimals\n const fractionLen = parsedNumber.digits.length - parsedNumber.integerLen;\n if (parsedNumber.exponent) {\n parsedNumber.exponent += 2;\n }\n else {\n if (fractionLen === 0) {\n parsedNumber.digits.push(0, 0);\n }\n else if (fractionLen === 1) {\n parsedNumber.digits.push(0);\n }\n parsedNumber.integerLen += 2;\n }\n return parsedNumber;\n}\n/**\n * Parses a number.\n * Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/\n */\nfunction parseNumber(num) {\n let numStr = Math.abs(num) + '';\n let exponent = 0, digits, integerLen;\n let i, j, zeros;\n // Decimal point?\n if ((integerLen = numStr.indexOf(DECIMAL_SEP)) > -1) {\n numStr = numStr.replace(DECIMAL_SEP, '');\n }\n // Exponential form?\n if ((i = numStr.search(/e/i)) > 0) {\n // Work out the exponent.\n if (integerLen < 0)\n integerLen = i;\n integerLen += +numStr.slice(i + 1);\n numStr = numStr.substring(0, i);\n }\n else if (integerLen < 0) {\n // There was no decimal point or exponent so it is an integer.\n integerLen = numStr.length;\n }\n // Count the number of leading zeros.\n for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */\n }\n if (i === (zeros = numStr.length)) {\n // The digits are all zero.\n digits = [0];\n integerLen = 1;\n }\n else {\n // Count the number of trailing zeros\n zeros--;\n while (numStr.charAt(zeros) === ZERO_CHAR)\n zeros--;\n // Trailing zeros are insignificant so ignore them\n integerLen -= i;\n digits = [];\n // Convert string to array of digits without leading/trailing zeros.\n for (j = 0; i <= zeros; i++, j++) {\n digits[j] = Number(numStr.charAt(i));\n }\n }\n // If the number overflows the maximum allowed digits then use an exponent.\n if (integerLen > MAX_DIGITS) {\n digits = digits.splice(0, MAX_DIGITS - 1);\n exponent = integerLen - 1;\n integerLen = 1;\n }\n return { digits, exponent, integerLen };\n}\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changes the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, minFrac, maxFrac) {\n if (minFrac > maxFrac) {\n throw new Error(`The minimum number of digits after fraction (${minFrac}) is higher than the maximum (${maxFrac}).`);\n }\n let digits = parsedNumber.digits;\n let fractionLen = digits.length - parsedNumber.integerLen;\n const fractionSize = Math.min(Math.max(minFrac, fractionLen), maxFrac);\n // The index of the digit to where rounding is to occur\n let roundAt = fractionSize + parsedNumber.integerLen;\n let digit = digits[roundAt];\n if (roundAt > 0) {\n // Drop fractional digits beyond `roundAt`\n digits.splice(Math.max(parsedNumber.integerLen, roundAt));\n // Set non-fractional digits beyond `roundAt` to 0\n for (let j = roundAt; j < digits.length; j++) {\n digits[j] = 0;\n }\n }\n else {\n // We rounded to zero so reset the parsedNumber\n fractionLen = Math.max(0, fractionLen);\n parsedNumber.integerLen = 1;\n digits.length = Math.max(1, roundAt = fractionSize + 1);\n digits[0] = 0;\n for (let i = 1; i < roundAt; i++)\n digits[i] = 0;\n }\n if (digit >= 5) {\n if (roundAt - 1 < 0) {\n for (let k = 0; k > roundAt; k--) {\n digits.unshift(0);\n parsedNumber.integerLen++;\n }\n digits.unshift(1);\n parsedNumber.integerLen++;\n }\n else {\n digits[roundAt - 1]++;\n }\n }\n // Pad out with zeros to get the required fraction length\n for (; fractionLen < Math.max(0, fractionSize); fractionLen++)\n digits.push(0);\n let dropTrailingZeros = fractionSize !== 0;\n // Minimal length = nb of decimals required + current nb of integers\n // Any number besides that is optional and can be removed if it's a trailing 0\n const minLen = minFrac + parsedNumber.integerLen;\n // Do any carrying, e.g. a digit was rounded up to 10\n const carry = digits.reduceRight(function (carry, d, i, digits) {\n d = d + carry;\n digits[i] = d < 10 ? d : d - 10; // d % 10\n if (dropTrailingZeros) {\n // Do not keep meaningless fractional trailing zeros (e.g. 15.52000 --> 15.52)\n if (digits[i] === 0 && i >= minLen) {\n digits.pop();\n }\n else {\n dropTrailingZeros = false;\n }\n }\n return d >= 10 ? 1 : 0; // Math.floor(d / 10);\n }, 0);\n if (carry) {\n digits.unshift(carry);\n parsedNumber.integerLen++;\n }\n}\nfunction parseIntAutoRadix(text) {\n const result = parseInt(text);\n if (isNaN(result)) {\n throw new Error('Invalid integer literal when parsing ' + text);\n }\n return result;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nclass NgLocalization {\n}\nNgLocalization.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocalization, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nNgLocalization.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocalization, providedIn: 'root', useFactory: (locale) => new NgLocaleLocalization(locale), deps: [{ token: LOCALE_ID }] });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocalization, decorators: [{\n type: Injectable,\n args: [{\n providedIn: 'root',\n useFactory: (locale) => new NgLocaleLocalization(locale),\n deps: [LOCALE_ID],\n }]\n }] });\n/**\n * Returns the plural category for a given value.\n * - \"=value\" when the case exists,\n * - the plural category otherwise\n */\nfunction getPluralCategory(value, cases, ngLocalization, locale) {\n let key = `=${value}`;\n if (cases.indexOf(key) > -1) {\n return key;\n }\n key = ngLocalization.getPluralCategory(value, locale);\n if (cases.indexOf(key) > -1) {\n return key;\n }\n if (cases.indexOf('other') > -1) {\n return 'other';\n }\n throw new Error(`No plural message found for value \"${value}\"`);\n}\n/**\n * Returns the plural case based on the locale\n *\n * @publicApi\n */\nclass NgLocaleLocalization extends NgLocalization {\n constructor(locale) {\n super();\n this.locale = locale;\n }\n getPluralCategory(value, locale) {\n const plural = getLocalePluralCase(locale || this.locale)(value);\n switch (plural) {\n case Plural.Zero:\n return 'zero';\n case Plural.One:\n return 'one';\n case Plural.Two:\n return 'two';\n case Plural.Few:\n return 'few';\n case Plural.Many:\n return 'many';\n default:\n return 'other';\n }\n }\n}\nNgLocaleLocalization.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocaleLocalization, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Injectable });\nNgLocaleLocalization.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocaleLocalization });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgLocaleLocalization, decorators: [{\n type: Injectable\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }];\n } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Register global data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n-common-format-data-locale) to know how to import additional locale\n * data.\n *\n * The signature registerLocaleData(data: any, extraData?: any) is deprecated since v5.1\n *\n * @publicApi\n */\nfunction registerLocaleData(data, localeId, extraData) {\n return ɵregisterLocaleData(data, localeId, extraData);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction parseCookieValue(cookieStr, name) {\n name = encodeURIComponent(name);\n for (const cookie of cookieStr.split(';')) {\n const eqIndex = cookie.indexOf('=');\n const [cookieName, cookieValue] = eqIndex == -1 ? [cookie, ''] : [cookie.slice(0, eqIndex), cookie.slice(eqIndex + 1)];\n if (cookieName.trim() === name) {\n return decodeURIComponent(cookieValue);\n }\n }\n return null;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n * ...\n *\n * ...\n *\n * ...\n *\n * ...\n *\n * ...\n * ```\n *\n * @description\n *\n * Adds and removes CSS classes on an HTML element.\n *\n * The CSS classes are updated as follows, depending on the type of the expression evaluation:\n * - `string` - the CSS classes listed in the string (space delimited) are added,\n * - `Array` - the CSS classes declared as Array elements are added,\n * - `Object` - keys are CSS classes that get added when the expression given in the value\n * evaluates to a truthy value, otherwise they are removed.\n *\n * @publicApi\n */\nclass NgClass {\n constructor(_iterableDiffers, _keyValueDiffers, _ngEl, _renderer) {\n this._iterableDiffers = _iterableDiffers;\n this._keyValueDiffers = _keyValueDiffers;\n this._ngEl = _ngEl;\n this._renderer = _renderer;\n this._iterableDiffer = null;\n this._keyValueDiffer = null;\n this._initialClasses = [];\n this._rawClass = null;\n }\n set klass(value) {\n this._removeClasses(this._initialClasses);\n this._initialClasses = typeof value === 'string' ? value.split(/\\s+/) : [];\n this._applyClasses(this._initialClasses);\n this._applyClasses(this._rawClass);\n }\n set ngClass(value) {\n this._removeClasses(this._rawClass);\n this._applyClasses(this._initialClasses);\n this._iterableDiffer = null;\n this._keyValueDiffer = null;\n this._rawClass = typeof value === 'string' ? value.split(/\\s+/) : value;\n if (this._rawClass) {\n if (ɵisListLikeIterable(this._rawClass)) {\n this._iterableDiffer = this._iterableDiffers.find(this._rawClass).create();\n }\n else {\n this._keyValueDiffer = this._keyValueDiffers.find(this._rawClass).create();\n }\n }\n }\n ngDoCheck() {\n if (this._iterableDiffer) {\n const iterableChanges = this._iterableDiffer.diff(this._rawClass);\n if (iterableChanges) {\n this._applyIterableChanges(iterableChanges);\n }\n }\n else if (this._keyValueDiffer) {\n const keyValueChanges = this._keyValueDiffer.diff(this._rawClass);\n if (keyValueChanges) {\n this._applyKeyValueChanges(keyValueChanges);\n }\n }\n }\n _applyKeyValueChanges(changes) {\n changes.forEachAddedItem((record) => this._toggleClass(record.key, record.currentValue));\n changes.forEachChangedItem((record) => this._toggleClass(record.key, record.currentValue));\n changes.forEachRemovedItem((record) => {\n if (record.previousValue) {\n this._toggleClass(record.key, false);\n }\n });\n }\n _applyIterableChanges(changes) {\n changes.forEachAddedItem((record) => {\n if (typeof record.item === 'string') {\n this._toggleClass(record.item, true);\n }\n else {\n throw new Error(`NgClass can only toggle CSS classes expressed as strings, got ${ɵstringify(record.item)}`);\n }\n });\n changes.forEachRemovedItem((record) => this._toggleClass(record.item, false));\n }\n /**\n * Applies a collection of CSS classes to the DOM element.\n *\n * For argument of type Set and Array CSS class names contained in those collections are always\n * added.\n * For argument of type Map CSS class name in the map's key is toggled based on the value (added\n * for truthy and removed for falsy).\n */\n _applyClasses(rawClassVal) {\n if (rawClassVal) {\n if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n rawClassVal.forEach((klass) => this._toggleClass(klass, true));\n }\n else {\n Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, !!rawClassVal[klass]));\n }\n }\n }\n /**\n * Removes a collection of CSS classes from the DOM element. This is mostly useful for cleanup\n * purposes.\n */\n _removeClasses(rawClassVal) {\n if (rawClassVal) {\n if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n rawClassVal.forEach((klass) => this._toggleClass(klass, false));\n }\n else {\n Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, false));\n }\n }\n }\n _toggleClass(klass, enabled) {\n klass = klass.trim();\n if (klass) {\n klass.split(/\\s+/g).forEach(klass => {\n if (enabled) {\n this._renderer.addClass(this._ngEl.nativeElement, klass);\n }\n else {\n this._renderer.removeClass(this._ngEl.nativeElement, klass);\n }\n });\n }\n }\n}\nNgClass.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgClass, deps: [{ token: i0.IterableDiffers }, { token: i0.KeyValueDiffers }, { token: i0.ElementRef }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });\nNgClass.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgClass, selector: \"[ngClass]\", inputs: { klass: [\"class\", \"klass\"], ngClass: \"ngClass\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgClass, decorators: [{\n type: Directive,\n args: [{ selector: '[ngClass]' }]\n }], ctorParameters: function () { return [{ type: i0.IterableDiffers }, { type: i0.KeyValueDiffers }, { type: i0.ElementRef }, { type: i0.Renderer2 }]; }, propDecorators: { klass: [{\n type: Input,\n args: ['class']\n }], ngClass: [{\n type: Input,\n args: ['ngClass']\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Instantiates a {@link Component} type and inserts its Host View into the current View.\n * `NgComponentOutlet` provides a declarative approach for dynamic component creation.\n *\n * `NgComponentOutlet` requires a component type, if a falsy value is set the view will clear and\n * any existing component will be destroyed.\n *\n * @usageNotes\n *\n * ### Fine tune control\n *\n * You can control the component creation process by using the following optional attributes:\n *\n * * `ngComponentOutletInjector`: Optional custom {@link Injector} that will be used as parent for\n * the Component. Defaults to the injector of the current view container.\n *\n * * `ngComponentOutletContent`: Optional list of projectable nodes to insert into the content\n * section of the component, if it exists.\n *\n * * `ngComponentOutletNgModuleFactory`: Optional module factory to allow loading another\n * module dynamically, then loading a component from that module.\n *\n * ### Syntax\n *\n * Simple\n * ```\n * \n * ```\n *\n * Customized injector/content\n * ```\n * \n * \n * ```\n *\n * Customized ngModuleFactory\n * ```\n * \n * \n * ```\n *\n * ### A simple example\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='SimpleExample'}\n *\n * A more complete example with additional options:\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='CompleteExample'}\n *\n * @publicApi\n * @ngModule CommonModule\n */\nclass NgComponentOutlet {\n constructor(_viewContainerRef) {\n this._viewContainerRef = _viewContainerRef;\n this._componentRef = null;\n this._moduleRef = null;\n }\n /** @nodoc */\n ngOnChanges(changes) {\n this._viewContainerRef.clear();\n this._componentRef = null;\n if (this.ngComponentOutlet) {\n const elInjector = this.ngComponentOutletInjector || this._viewContainerRef.parentInjector;\n if (changes['ngComponentOutletNgModuleFactory']) {\n if (this._moduleRef)\n this._moduleRef.destroy();\n if (this.ngComponentOutletNgModuleFactory) {\n const parentModule = elInjector.get(NgModuleRef);\n this._moduleRef = this.ngComponentOutletNgModuleFactory.create(parentModule.injector);\n }\n else {\n this._moduleRef = null;\n }\n }\n const componentFactoryResolver = this._moduleRef ? this._moduleRef.componentFactoryResolver :\n elInjector.get(ComponentFactoryResolver);\n const componentFactory = componentFactoryResolver.resolveComponentFactory(this.ngComponentOutlet);\n this._componentRef = this._viewContainerRef.createComponent(componentFactory, this._viewContainerRef.length, elInjector, this.ngComponentOutletContent);\n }\n }\n /** @nodoc */\n ngOnDestroy() {\n if (this._moduleRef)\n this._moduleRef.destroy();\n }\n}\nNgComponentOutlet.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgComponentOutlet, deps: [{ token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive });\nNgComponentOutlet.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgComponentOutlet, selector: \"[ngComponentOutlet]\", inputs: { ngComponentOutlet: \"ngComponentOutlet\", ngComponentOutletInjector: \"ngComponentOutletInjector\", ngComponentOutletContent: \"ngComponentOutletContent\", ngComponentOutletNgModuleFactory: \"ngComponentOutletNgModuleFactory\" }, usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgComponentOutlet, decorators: [{\n type: Directive,\n args: [{ selector: '[ngComponentOutlet]' }]\n }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }]; }, propDecorators: { ngComponentOutlet: [{\n type: Input\n }], ngComponentOutletInjector: [{\n type: Input\n }], ngComponentOutletContent: [{\n type: Input\n }], ngComponentOutletNgModuleFactory: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nclass NgForOfContext {\n constructor($implicit, ngForOf, index, count) {\n this.$implicit = $implicit;\n this.ngForOf = ngForOf;\n this.index = index;\n this.count = count;\n }\n get first() {\n return this.index === 0;\n }\n get last() {\n return this.index === this.count - 1;\n }\n get even() {\n return this.index % 2 === 0;\n }\n get odd() {\n return !this.even;\n }\n}\n/**\n * A [structural directive](guide/structural-directives) that renders\n * a template for each item in a collection.\n * The directive is placed on an element, which becomes the parent\n * of the cloned templates.\n *\n * The `ngForOf` directive is generally used in the\n * [shorthand form](guide/structural-directives#asterisk) `*ngFor`.\n * In this form, the template to be rendered for each iteration is the content\n * of an anchor element containing the directive.\n *\n * The following example shows the shorthand syntax with some options,\n * contained in an `` element.\n *\n * ```\n * ...\n * ```\n *\n * The shorthand form expands into a long form that uses the `ngForOf` selector\n * on an `` element.\n * The content of the `` element is the `` element that held the\n * short-form directive.\n *\n * Here is the expanded version of the short-form example.\n *\n * ```\n * \n * ...\n * \n * ```\n *\n * Angular automatically expands the shorthand syntax as it compiles the template.\n * The context for each embedded view is logically merged to the current component\n * context according to its lexical position.\n *\n * When using the shorthand syntax, Angular allows only [one structural directive\n * on an element](guide/built-in-directives#one-per-element).\n * If you want to iterate conditionally, for example,\n * put the `*ngIf` on a container element that wraps the `*ngFor` element.\n * For futher discussion, see\n * [Structural Directives](guide/built-in-directives#one-per-element).\n *\n * @usageNotes\n *\n * ### Local variables\n *\n * `NgForOf` provides exported values that can be aliased to local variables.\n * For example:\n *\n * ```\n * \n * {{i}}/{{users.length}}. {{user}} default\n * \n * ```\n *\n * The following exported values can be aliased to local variables:\n *\n * - `$implicit: T`: The value of the individual items in the iterable (`ngForOf`).\n * - `ngForOf: NgIterable`: The value of the iterable expression. Useful when the expression is\n * more complex then a property access, for example when using the async pipe (`userStreams |\n * async`).\n * - `index: number`: The index of the current item in the iterable.\n * - `count: number`: The length of the iterable.\n * - `first: boolean`: True when the item is the first item in the iterable.\n * - `last: boolean`: True when the item is the last item in the iterable.\n * - `even: boolean`: True when the item has an even index in the iterable.\n * - `odd: boolean`: True when the item has an odd index in the iterable.\n *\n * ### Change propagation\n *\n * When the contents of the iterator changes, `NgForOf` makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * Angular uses object identity to track insertions and deletions within the iterator and reproduce\n * those changes in the DOM. This has important implications for animations and any stateful\n * controls that are present, such as `` elements that accept user input. Inserted rows can\n * be animated in, deleted rows can be animated out, and unchanged rows retain any unsaved state\n * such as user input.\n * For more on animations, see [Transitions and Triggers](guide/transition-and-triggers).\n *\n * The identities of elements in the iterator can change while the data does not.\n * This can happen, for example, if the iterator is produced from an RPC to the server, and that\n * RPC is re-run. Even if the data hasn't changed, the second response produces objects with\n * different identities, and Angular must tear down the entire DOM and rebuild it (as if all old\n * elements were deleted and all new elements inserted).\n *\n * To avoid this expensive operation, you can customize the default tracking algorithm.\n * by supplying the `trackBy` option to `NgForOf`.\n * `trackBy` takes a function that has two arguments: `index` and `item`.\n * If `trackBy` is given, Angular tracks changes by the return value of the function.\n *\n * @see [Structural Directives](guide/structural-directives)\n * @ngModule CommonModule\n * @publicApi\n */\nclass NgForOf {\n constructor(_viewContainer, _template, _differs) {\n this._viewContainer = _viewContainer;\n this._template = _template;\n this._differs = _differs;\n this._ngForOf = null;\n this._ngForOfDirty = true;\n this._differ = null;\n }\n /**\n * The value of the iterable expression, which can be used as a\n * [template input variable](guide/structural-directives#shorthand).\n */\n set ngForOf(ngForOf) {\n this._ngForOf = ngForOf;\n this._ngForOfDirty = true;\n }\n /**\n * Specifies a custom `TrackByFunction` to compute the identity of items in an iterable.\n *\n * If a custom `TrackByFunction` is not provided, `NgForOf` will use the item's [object\n * identity](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is)\n * as the key.\n *\n * `NgForOf` uses the computed key to associate items in an iterable with DOM elements\n * it produces for these items.\n *\n * A custom `TrackByFunction` is useful to provide good user experience in cases when items in an\n * iterable rendered using `NgForOf` have a natural identifier (for example, custom ID or a\n * primary key), and this iterable could be updated with new object instances that still\n * represent the same underlying entity (for example, when data is re-fetched from the server,\n * and the iterable is recreated and re-rendered, but most of the data is still the same).\n *\n * @see `TrackByFunction`\n */\n set ngForTrackBy(fn) {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && fn != null && typeof fn !== 'function') {\n // TODO(vicb): use a log service once there is a public one available\n if (console && console.warn) {\n console.warn(`trackBy must be a function, but received ${JSON.stringify(fn)}. ` +\n `See https://angular.io/api/common/NgForOf#change-propagation for more information.`);\n }\n }\n this._trackByFn = fn;\n }\n get ngForTrackBy() {\n return this._trackByFn;\n }\n /**\n * A reference to the template that is stamped out for each item in the iterable.\n * @see [template reference variable](guide/template-reference-variables)\n */\n set ngForTemplate(value) {\n // TODO(TS2.1): make TemplateRef>> once we move to TS v2.1\n // The current type is too restrictive; a template that just uses index, for example,\n // should be acceptable.\n if (value) {\n this._template = value;\n }\n }\n /**\n * Applies the changes when needed.\n * @nodoc\n */\n ngDoCheck() {\n if (this._ngForOfDirty) {\n this._ngForOfDirty = false;\n // React on ngForOf changes only once all inputs have been initialized\n const value = this._ngForOf;\n if (!this._differ && value) {\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n try {\n // CAUTION: this logic is duplicated for production mode below, as the try-catch\n // is only present in development builds.\n this._differ = this._differs.find(value).create(this.ngForTrackBy);\n }\n catch (_a) {\n throw new Error(`Cannot find a differ supporting object '${value}' of type '${getTypeName(value)}'. NgFor only supports binding to Iterables such as Arrays.`);\n }\n }\n else {\n // CAUTION: this logic is duplicated for development mode above, as the try-catch\n // is only present in development builds.\n this._differ = this._differs.find(value).create(this.ngForTrackBy);\n }\n }\n }\n if (this._differ) {\n const changes = this._differ.diff(this._ngForOf);\n if (changes)\n this._applyChanges(changes);\n }\n }\n _applyChanges(changes) {\n const viewContainer = this._viewContainer;\n changes.forEachOperation((item, adjustedPreviousIndex, currentIndex) => {\n if (item.previousIndex == null) {\n // NgForOf is never \"null\" or \"undefined\" here because the differ detected\n // that a new item needs to be inserted from the iterable. This implies that\n // there is an iterable value for \"_ngForOf\".\n viewContainer.createEmbeddedView(this._template, new NgForOfContext(item.item, this._ngForOf, -1, -1), currentIndex === null ? undefined : currentIndex);\n }\n else if (currentIndex == null) {\n viewContainer.remove(adjustedPreviousIndex === null ? undefined : adjustedPreviousIndex);\n }\n else if (adjustedPreviousIndex !== null) {\n const view = viewContainer.get(adjustedPreviousIndex);\n viewContainer.move(view, currentIndex);\n applyViewChange(view, item);\n }\n });\n for (let i = 0, ilen = viewContainer.length; i < ilen; i++) {\n const viewRef = viewContainer.get(i);\n const context = viewRef.context;\n context.index = i;\n context.count = ilen;\n context.ngForOf = this._ngForOf;\n }\n changes.forEachIdentityChange((record) => {\n const viewRef = viewContainer.get(record.currentIndex);\n applyViewChange(viewRef, record);\n });\n }\n /**\n * Asserts the correct type of the context for the template that `NgForOf` will render.\n *\n * The presence of this method is a signal to the Ivy template type-check compiler that the\n * `NgForOf` structural directive renders its template with a specific context type.\n */\n static ngTemplateContextGuard(dir, ctx) {\n return true;\n }\n}\nNgForOf.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgForOf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: i0.IterableDiffers }], target: i0.ɵɵFactoryTarget.Directive });\nNgForOf.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgForOf, selector: \"[ngFor][ngForOf]\", inputs: { ngForOf: \"ngForOf\", ngForTrackBy: \"ngForTrackBy\", ngForTemplate: \"ngForTemplate\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgForOf, decorators: [{\n type: Directive,\n args: [{ selector: '[ngFor][ngForOf]' }]\n }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: i0.IterableDiffers }]; }, propDecorators: { ngForOf: [{\n type: Input\n }], ngForTrackBy: [{\n type: Input\n }], ngForTemplate: [{\n type: Input\n }] } });\nfunction applyViewChange(view, record) {\n view.context.$implicit = record.item;\n}\nfunction getTypeName(type) {\n return type['name'] || typeof type;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A structural directive that conditionally includes a template based on the value of\n * an expression coerced to Boolean.\n * When the expression evaluates to true, Angular renders the template\n * provided in a `then` clause, and when false or null,\n * Angular renders the template provided in an optional `else` clause. The default\n * template for the `else` clause is blank.\n *\n * A [shorthand form](guide/structural-directives#asterisk) of the directive,\n * `*ngIf=\"condition\"`, is generally used, provided\n * as an attribute of the anchor element for the inserted template.\n * Angular expands this into a more explicit version, in which the anchor element\n * is contained in an `` element.\n *\n * Simple form with shorthand syntax:\n *\n * ```\n * Content to render when condition is true.
\n * ```\n *\n * Simple form with expanded syntax:\n *\n * ```\n * Content to render when condition is\n * true.
\n * ```\n *\n * Form with an \"else\" block:\n *\n * ```\n * Content to render when condition is true.
\n * Content to render when condition is false.\n * ```\n *\n * Shorthand form with \"then\" and \"else\" blocks:\n *\n * ```\n * \n * Content to render when condition is true.\n * Content to render when condition is false.\n * ```\n *\n * Form with storing the value locally:\n *\n * ```\n * {{value}}
\n * Content to render when value is null.\n * ```\n *\n * @usageNotes\n *\n * The `*ngIf` directive is most commonly used to conditionally show an inline template,\n * as seen in the following example.\n * The default `else` template is blank.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfSimple'}\n *\n * ### Showing an alternative template using `else`\n *\n * To display a template when `expression` evaluates to false, use an `else` template\n * binding as shown in the following example.\n * The `else` binding points to an `` element labeled `#elseBlock`.\n * The template can be defined anywhere in the component view, but is typically placed right after\n * `ngIf` for readability.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfElse'}\n *\n * ### Using an external `then` template\n *\n * In the previous example, the then-clause template is specified inline, as the content of the\n * tag that contains the `ngIf` directive. You can also specify a template that is defined\n * externally, by referencing a labeled `` element. When you do this, you can\n * change which template to use at runtime, as shown in the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfThenElse'}\n *\n * ### Storing a conditional result in a variable\n *\n * You might want to show a set of properties from the same object. If you are waiting\n * for asynchronous data, the object can be undefined.\n * In this case, you can use `ngIf` and store the result of the condition in a local\n * variable as shown in the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfAs'}\n *\n * This code uses only one `AsyncPipe`, so only one subscription is created.\n * The conditional statement stores the result of `userStream|async` in the local variable `user`.\n * You can then bind the local `user` repeatedly.\n *\n * The conditional displays the data only if `userStream` returns a value,\n * so you don't need to use the\n * safe-navigation-operator (`?.`)\n * to guard against null values when accessing properties.\n * You can display an alternative template while waiting for the data.\n *\n * ### Shorthand syntax\n *\n * The shorthand syntax `*ngIf` expands into two separate template specifications\n * for the \"then\" and \"else\" clauses. For example, consider the following shorthand statement,\n * that is meant to show a loading page while waiting for data to be loaded.\n *\n * ```\n * \n * ...\n *
\n *\n * \n * Loading...
\n * \n * ```\n *\n * You can see that the \"else\" clause references the ``\n * with the `#loading` label, and the template for the \"then\" clause\n * is provided as the content of the anchor element.\n *\n * However, when Angular expands the shorthand syntax, it creates\n * another `` tag, with `ngIf` and `ngIfElse` directives.\n * The anchor element containing the template for the \"then\" clause becomes\n * the content of this unlabeled `` tag.\n *\n * ```\n * \n * \n * ...\n *
\n * \n *\n * \n * Loading...
\n * \n * ```\n *\n * The presence of the implicit template object has implications for the nesting of\n * structural directives. For more on this subject, see\n * [Structural Directives](https://angular.io/guide/built-in-directives#one-per-element).\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass NgIf {\n constructor(_viewContainer, templateRef) {\n this._viewContainer = _viewContainer;\n this._context = new NgIfContext();\n this._thenTemplateRef = null;\n this._elseTemplateRef = null;\n this._thenViewRef = null;\n this._elseViewRef = null;\n this._thenTemplateRef = templateRef;\n }\n /**\n * The Boolean expression to evaluate as the condition for showing a template.\n */\n set ngIf(condition) {\n this._context.$implicit = this._context.ngIf = condition;\n this._updateView();\n }\n /**\n * A template to show if the condition expression evaluates to true.\n */\n set ngIfThen(templateRef) {\n assertTemplate('ngIfThen', templateRef);\n this._thenTemplateRef = templateRef;\n this._thenViewRef = null; // clear previous view if any.\n this._updateView();\n }\n /**\n * A template to show if the condition expression evaluates to false.\n */\n set ngIfElse(templateRef) {\n assertTemplate('ngIfElse', templateRef);\n this._elseTemplateRef = templateRef;\n this._elseViewRef = null; // clear previous view if any.\n this._updateView();\n }\n _updateView() {\n if (this._context.$implicit) {\n if (!this._thenViewRef) {\n this._viewContainer.clear();\n this._elseViewRef = null;\n if (this._thenTemplateRef) {\n this._thenViewRef =\n this._viewContainer.createEmbeddedView(this._thenTemplateRef, this._context);\n }\n }\n }\n else {\n if (!this._elseViewRef) {\n this._viewContainer.clear();\n this._thenViewRef = null;\n if (this._elseTemplateRef) {\n this._elseViewRef =\n this._viewContainer.createEmbeddedView(this._elseTemplateRef, this._context);\n }\n }\n }\n }\n /**\n * Asserts the correct type of the context for the template that `NgIf` will render.\n *\n * The presence of this method is a signal to the Ivy template type-check compiler that the\n * `NgIf` structural directive renders its template with a specific context type.\n */\n static ngTemplateContextGuard(dir, ctx) {\n return true;\n }\n}\nNgIf.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgIf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }], target: i0.ɵɵFactoryTarget.Directive });\nNgIf.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgIf, selector: \"[ngIf]\", inputs: { ngIf: \"ngIf\", ngIfThen: \"ngIfThen\", ngIfElse: \"ngIfElse\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgIf, decorators: [{\n type: Directive,\n args: [{ selector: '[ngIf]' }]\n }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }]; }, propDecorators: { ngIf: [{\n type: Input\n }], ngIfThen: [{\n type: Input\n }], ngIfElse: [{\n type: Input\n }] } });\n/**\n * @publicApi\n */\nclass NgIfContext {\n constructor() {\n this.$implicit = null;\n this.ngIf = null;\n }\n}\nfunction assertTemplate(property, templateRef) {\n const isTemplateRefOrNull = !!(!templateRef || templateRef.createEmbeddedView);\n if (!isTemplateRefOrNull) {\n throw new Error(`${property} must be a TemplateRef, but received '${ɵstringify(templateRef)}'.`);\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass SwitchView {\n constructor(_viewContainerRef, _templateRef) {\n this._viewContainerRef = _viewContainerRef;\n this._templateRef = _templateRef;\n this._created = false;\n }\n create() {\n this._created = true;\n this._viewContainerRef.createEmbeddedView(this._templateRef);\n }\n destroy() {\n this._created = false;\n this._viewContainerRef.clear();\n }\n enforceState(created) {\n if (created && !this._created) {\n this.create();\n }\n else if (!created && this._created) {\n this.destroy();\n }\n }\n}\n/**\n * @ngModule CommonModule\n *\n * @description\n * The `[ngSwitch]` directive on a container specifies an expression to match against.\n * The expressions to match are provided by `ngSwitchCase` directives on views within the container.\n * - Every view that matches is rendered.\n * - If there are no matches, a view with the `ngSwitchDefault` directive is rendered.\n * - Elements within the `[NgSwitch]` statement but outside of any `NgSwitchCase`\n * or `ngSwitchDefault` directive are preserved at the location.\n *\n * @usageNotes\n * Define a container element for the directive, and specify the switch expression\n * to match against as an attribute:\n *\n * ```\n * \n * ```\n *\n * Within the container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * \n * ...\n * ...\n * ...\n * \n * ```\n *\n * ### Usage Examples\n *\n * The following example shows how to use more than one case to display the same view:\n *\n * ```\n * \n * \n * ...\n * ...\n * ...\n * \n * ...\n * \n * ```\n *\n * The following example shows how cases can be nested:\n * ```\n * \n * ...\n * ...\n * ...\n * \n * \n * \n * \n * \n * ...\n * \n * ```\n *\n * @publicApi\n * @see `NgSwitchCase`\n * @see `NgSwitchDefault`\n * @see [Structural Directives](guide/structural-directives)\n *\n */\nclass NgSwitch {\n constructor() {\n this._defaultUsed = false;\n this._caseCount = 0;\n this._lastCaseCheckIndex = 0;\n this._lastCasesMatched = false;\n }\n set ngSwitch(newValue) {\n this._ngSwitch = newValue;\n if (this._caseCount === 0) {\n this._updateDefaultCases(true);\n }\n }\n /** @internal */\n _addCase() {\n return this._caseCount++;\n }\n /** @internal */\n _addDefault(view) {\n if (!this._defaultViews) {\n this._defaultViews = [];\n }\n this._defaultViews.push(view);\n }\n /** @internal */\n _matchCase(value) {\n const matched = value == this._ngSwitch;\n this._lastCasesMatched = this._lastCasesMatched || matched;\n this._lastCaseCheckIndex++;\n if (this._lastCaseCheckIndex === this._caseCount) {\n this._updateDefaultCases(!this._lastCasesMatched);\n this._lastCaseCheckIndex = 0;\n this._lastCasesMatched = false;\n }\n return matched;\n }\n _updateDefaultCases(useDefault) {\n if (this._defaultViews && useDefault !== this._defaultUsed) {\n this._defaultUsed = useDefault;\n for (let i = 0; i < this._defaultViews.length; i++) {\n const defaultView = this._defaultViews[i];\n defaultView.enforceState(useDefault);\n }\n }\n }\n}\nNgSwitch.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitch, deps: [], target: i0.ɵɵFactoryTarget.Directive });\nNgSwitch.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgSwitch, selector: \"[ngSwitch]\", inputs: { ngSwitch: \"ngSwitch\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitch, decorators: [{\n type: Directive,\n args: [{ selector: '[ngSwitch]' }]\n }], propDecorators: { ngSwitch: [{\n type: Input\n }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n * Provides a switch case expression to match against an enclosing `ngSwitch` expression.\n * When the expressions match, the given `NgSwitchCase` template is rendered.\n * If multiple match expressions match the switch expression value, all of them are displayed.\n *\n * @usageNotes\n *\n * Within a switch container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * \n * ...\n * ...\n * ...\n * \n * ```\n *\n * Each switch-case statement contains an in-line HTML template or template reference\n * that defines the subtree to be selected if the value of the match expression\n * matches the value of the switch expression.\n *\n * Unlike JavaScript, which uses strict equality, Angular uses loose equality.\n * This means that the empty string, `\"\"` matches 0.\n *\n * @publicApi\n * @see `NgSwitch`\n * @see `NgSwitchDefault`\n *\n */\nclass NgSwitchCase {\n constructor(viewContainer, templateRef, ngSwitch) {\n this.ngSwitch = ngSwitch;\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && !ngSwitch) {\n throwNgSwitchProviderNotFoundError('ngSwitchCase', 'NgSwitchCase');\n }\n ngSwitch._addCase();\n this._view = new SwitchView(viewContainer, templateRef);\n }\n /**\n * Performs case matching. For internal use only.\n * @nodoc\n */\n ngDoCheck() {\n this._view.enforceState(this.ngSwitch._matchCase(this.ngSwitchCase));\n }\n}\nNgSwitchCase.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitchCase, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: NgSwitch, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive });\nNgSwitchCase.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgSwitchCase, selector: \"[ngSwitchCase]\", inputs: { ngSwitchCase: \"ngSwitchCase\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitchCase, decorators: [{\n type: Directive,\n args: [{ selector: '[ngSwitchCase]' }]\n }], ctorParameters: function () {\n return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: NgSwitch, decorators: [{\n type: Optional\n }, {\n type: Host\n }] }];\n }, propDecorators: { ngSwitchCase: [{\n type: Input\n }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that is rendered when no `NgSwitchCase` expressions\n * match the `NgSwitch` expression.\n * This statement should be the final case in an `NgSwitch`.\n *\n * @publicApi\n * @see `NgSwitch`\n * @see `NgSwitchCase`\n *\n */\nclass NgSwitchDefault {\n constructor(viewContainer, templateRef, ngSwitch) {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && !ngSwitch) {\n throwNgSwitchProviderNotFoundError('ngSwitchDefault', 'NgSwitchDefault');\n }\n ngSwitch._addDefault(new SwitchView(viewContainer, templateRef));\n }\n}\nNgSwitchDefault.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitchDefault, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: NgSwitch, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive });\nNgSwitchDefault.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgSwitchDefault, selector: \"[ngSwitchDefault]\", ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgSwitchDefault, decorators: [{\n type: Directive,\n args: [{ selector: '[ngSwitchDefault]' }]\n }], ctorParameters: function () {\n return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: NgSwitch, decorators: [{\n type: Optional\n }, {\n type: Host\n }] }];\n } });\nfunction throwNgSwitchProviderNotFoundError(attrName, directiveName) {\n throw new ɵRuntimeError(2000 /* PARENT_NG_SWITCH_NOT_FOUND */, `An element with the \"${attrName}\" attribute ` +\n `(matching the \"${directiveName}\" directive) must be located inside an element with the \"ngSwitch\" attribute ` +\n `(matching \"NgSwitch\" directive)`);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n * \n * there is nothing\n * there is one\n * there are a few\n * \n * ```\n *\n * @description\n *\n * Adds / removes DOM sub-trees based on a numeric value. Tailored for pluralization.\n *\n * Displays DOM sub-trees that match the switch expression value, or failing that, DOM sub-trees\n * that match the switch expression's pluralization category.\n *\n * To use this directive you must provide a container element that sets the `[ngPlural]` attribute\n * to a switch expression. Inner elements with a `[ngPluralCase]` will display based on their\n * expression:\n * - if `[ngPluralCase]` is set to a value starting with `=`, it will only display if the value\n * matches the switch expression exactly,\n * - otherwise, the view will be treated as a \"category match\", and will only display if exact\n * value matches aren't found and the value maps to its category for the defined locale.\n *\n * See http://cldr.unicode.org/index/cldr-spec/plural-rules\n *\n * @publicApi\n */\nclass NgPlural {\n constructor(_localization) {\n this._localization = _localization;\n this._caseViews = {};\n }\n set ngPlural(value) {\n this._switchValue = value;\n this._updateView();\n }\n addCase(value, switchView) {\n this._caseViews[value] = switchView;\n }\n _updateView() {\n this._clearViews();\n const cases = Object.keys(this._caseViews);\n const key = getPluralCategory(this._switchValue, cases, this._localization);\n this._activateView(this._caseViews[key]);\n }\n _clearViews() {\n if (this._activeView)\n this._activeView.destroy();\n }\n _activateView(view) {\n if (view) {\n this._activeView = view;\n this._activeView.create();\n }\n }\n}\nNgPlural.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgPlural, deps: [{ token: NgLocalization }], target: i0.ɵɵFactoryTarget.Directive });\nNgPlural.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgPlural, selector: \"[ngPlural]\", inputs: { ngPlural: \"ngPlural\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgPlural, decorators: [{\n type: Directive,\n args: [{ selector: '[ngPlural]' }]\n }], ctorParameters: function () { return [{ type: NgLocalization }]; }, propDecorators: { ngPlural: [{\n type: Input\n }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that will be added/removed from the parent {@link NgPlural} when the\n * given expression matches the plural expression according to CLDR rules.\n *\n * @usageNotes\n * ```\n * \n * ...\n * ...\n * \n *```\n *\n * See {@link NgPlural} for more details and example.\n *\n * @publicApi\n */\nclass NgPluralCase {\n constructor(value, template, viewContainer, ngPlural) {\n this.value = value;\n const isANumber = !isNaN(Number(value));\n ngPlural.addCase(isANumber ? `=${value}` : value, new SwitchView(viewContainer, template));\n }\n}\nNgPluralCase.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgPluralCase, deps: [{ token: 'ngPluralCase', attribute: true }, { token: i0.TemplateRef }, { token: i0.ViewContainerRef }, { token: NgPlural, host: true }], target: i0.ɵɵFactoryTarget.Directive });\nNgPluralCase.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgPluralCase, selector: \"[ngPluralCase]\", ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgPluralCase, decorators: [{\n type: Directive,\n args: [{ selector: '[ngPluralCase]' }]\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Attribute,\n args: ['ngPluralCase']\n }] }, { type: i0.TemplateRef }, { type: i0.ViewContainerRef }, { type: NgPlural, decorators: [{\n type: Host\n }] }];\n } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n *\n * Set the font of the containing element to the result of an expression.\n *\n * ```\n * ...\n * ```\n *\n * Set the width of the containing element to a pixel value returned by an expression.\n *\n * ```\n * ...\n * ```\n *\n * Set a collection of style values using an expression that returns key-value pairs.\n *\n * ```\n * ...\n * ```\n *\n * @description\n *\n * An attribute directive that updates styles for the containing HTML element.\n * Sets one or more style properties, specified as colon-separated key-value pairs.\n * The key is a style name, with an optional `.` suffix\n * (such as 'top.px', 'font-style.em').\n * The value is an expression to be evaluated.\n * The resulting non-null value, expressed in the given unit,\n * is assigned to the given style property.\n * If the result of evaluation is null, the corresponding style is removed.\n *\n * @publicApi\n */\nclass NgStyle {\n constructor(_ngEl, _differs, _renderer) {\n this._ngEl = _ngEl;\n this._differs = _differs;\n this._renderer = _renderer;\n this._ngStyle = null;\n this._differ = null;\n }\n set ngStyle(values) {\n this._ngStyle = values;\n if (!this._differ && values) {\n this._differ = this._differs.find(values).create();\n }\n }\n ngDoCheck() {\n if (this._differ) {\n const changes = this._differ.diff(this._ngStyle);\n if (changes) {\n this._applyChanges(changes);\n }\n }\n }\n _setStyle(nameAndUnit, value) {\n const [name, unit] = nameAndUnit.split('.');\n value = value != null && unit ? `${value}${unit}` : value;\n if (value != null) {\n this._renderer.setStyle(this._ngEl.nativeElement, name, value);\n }\n else {\n this._renderer.removeStyle(this._ngEl.nativeElement, name);\n }\n }\n _applyChanges(changes) {\n changes.forEachRemovedItem((record) => this._setStyle(record.key, null));\n changes.forEachAddedItem((record) => this._setStyle(record.key, record.currentValue));\n changes.forEachChangedItem((record) => this._setStyle(record.key, record.currentValue));\n }\n}\nNgStyle.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgStyle, deps: [{ token: i0.ElementRef }, { token: i0.KeyValueDiffers }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });\nNgStyle.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgStyle, selector: \"[ngStyle]\", inputs: { ngStyle: \"ngStyle\" }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgStyle, decorators: [{\n type: Directive,\n args: [{ selector: '[ngStyle]' }]\n }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.KeyValueDiffers }, { type: i0.Renderer2 }]; }, propDecorators: { ngStyle: [{\n type: Input,\n args: ['ngStyle']\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Inserts an embedded view from a prepared `TemplateRef`.\n *\n * You can attach a context object to the `EmbeddedViewRef` by setting `[ngTemplateOutletContext]`.\n * `[ngTemplateOutletContext]` should be an object, the object's keys will be available for binding\n * by the local template `let` declarations.\n *\n * @usageNotes\n * ```\n * \n * ```\n *\n * Using the key `$implicit` in the context object will set its value as default.\n *\n * ### Example\n *\n * {@example common/ngTemplateOutlet/ts/module.ts region='NgTemplateOutlet'}\n *\n * @publicApi\n */\nclass NgTemplateOutlet {\n constructor(_viewContainerRef) {\n this._viewContainerRef = _viewContainerRef;\n this._viewRef = null;\n /**\n * A context object to attach to the {@link EmbeddedViewRef}. This should be an\n * object, the object's keys will be available for binding by the local template `let`\n * declarations.\n * Using the key `$implicit` in the context object will set its value as default.\n */\n this.ngTemplateOutletContext = null;\n /**\n * A string defining the template reference and optionally the context object for the template.\n */\n this.ngTemplateOutlet = null;\n }\n /** @nodoc */\n ngOnChanges(changes) {\n if (changes['ngTemplateOutlet']) {\n const viewContainerRef = this._viewContainerRef;\n if (this._viewRef) {\n viewContainerRef.remove(viewContainerRef.indexOf(this._viewRef));\n }\n this._viewRef = this.ngTemplateOutlet ?\n viewContainerRef.createEmbeddedView(this.ngTemplateOutlet, this.ngTemplateOutletContext) :\n null;\n }\n else if (this._viewRef && changes['ngTemplateOutletContext'] && this.ngTemplateOutletContext) {\n this._viewRef.context = this.ngTemplateOutletContext;\n }\n }\n}\nNgTemplateOutlet.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgTemplateOutlet, deps: [{ token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive });\nNgTemplateOutlet.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"12.0.0\", version: \"13.2.6\", type: NgTemplateOutlet, selector: \"[ngTemplateOutlet]\", inputs: { ngTemplateOutletContext: \"ngTemplateOutletContext\", ngTemplateOutlet: \"ngTemplateOutlet\" }, usesOnChanges: true, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NgTemplateOutlet, decorators: [{\n type: Directive,\n args: [{ selector: '[ngTemplateOutlet]' }]\n }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }]; }, propDecorators: { ngTemplateOutletContext: [{\n type: Input\n }], ngTemplateOutlet: [{\n type: Input\n }] } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A collection of Angular directives that are likely to be used in each and every Angular\n * application.\n */\nconst COMMON_DIRECTIVES = [\n NgClass,\n NgComponentOutlet,\n NgForOf,\n NgIf,\n NgTemplateOutlet,\n NgStyle,\n NgSwitch,\n NgSwitchCase,\n NgSwitchDefault,\n NgPlural,\n NgPluralCase,\n];\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction invalidPipeArgumentError(type, value) {\n const errorMessage = (typeof ngDevMode === 'undefined' || ngDevMode) ?\n `InvalidPipeArgument: '${value}' for pipe '${ɵstringify(type)}'` :\n '';\n return new ɵRuntimeError(2100 /* INVALID_PIPE_ARGUMENT */, errorMessage);\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nclass SubscribableStrategy {\n createSubscription(async, updateLatestValue) {\n return async.subscribe({\n next: updateLatestValue,\n error: (e) => {\n throw e;\n }\n });\n }\n dispose(subscription) {\n subscription.unsubscribe();\n }\n onDestroy(subscription) {\n subscription.unsubscribe();\n }\n}\nclass PromiseStrategy {\n createSubscription(async, updateLatestValue) {\n return async.then(updateLatestValue, e => {\n throw e;\n });\n }\n dispose(subscription) { }\n onDestroy(subscription) { }\n}\nconst _promiseStrategy = new PromiseStrategy();\nconst _subscribableStrategy = new SubscribableStrategy();\n/**\n * @ngModule CommonModule\n * @description\n *\n * Unwraps a value from an asynchronous primitive.\n *\n * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has\n * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for\n * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid\n * potential memory leaks. When the reference of the expression changes, the `async` pipe\n * automatically unsubscribes from the old `Observable` or `Promise` and subscribes to the new one.\n *\n * @usageNotes\n *\n * ### Examples\n *\n * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the\n * promise.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}\n *\n * It's also possible to use `async` with Observables. The example below binds the `time` Observable\n * to the view. The Observable continuously updates the view with the current time.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}\n *\n * @publicApi\n */\nclass AsyncPipe {\n constructor(_ref) {\n this._ref = _ref;\n this._latestValue = null;\n this._subscription = null;\n this._obj = null;\n this._strategy = null;\n }\n ngOnDestroy() {\n if (this._subscription) {\n this._dispose();\n }\n }\n transform(obj) {\n if (!this._obj) {\n if (obj) {\n this._subscribe(obj);\n }\n return this._latestValue;\n }\n if (obj !== this._obj) {\n this._dispose();\n return this.transform(obj);\n }\n return this._latestValue;\n }\n _subscribe(obj) {\n this._obj = obj;\n this._strategy = this._selectStrategy(obj);\n this._subscription = this._strategy.createSubscription(obj, (value) => this._updateLatestValue(obj, value));\n }\n _selectStrategy(obj) {\n if (ɵisPromise(obj)) {\n return _promiseStrategy;\n }\n if (ɵisSubscribable(obj)) {\n return _subscribableStrategy;\n }\n throw invalidPipeArgumentError(AsyncPipe, obj);\n }\n _dispose() {\n this._strategy.dispose(this._subscription);\n this._latestValue = null;\n this._subscription = null;\n this._obj = null;\n }\n _updateLatestValue(async, value) {\n if (async === this._obj) {\n this._latestValue = value;\n this._ref.markForCheck();\n }\n }\n}\nAsyncPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: AsyncPipe, deps: [{ token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Pipe });\nAsyncPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: AsyncPipe, name: \"async\", pure: false });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: AsyncPipe, decorators: [{\n type: Pipe,\n args: [{ name: 'async', pure: false }]\n }], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Transforms text to all lower case.\n *\n * @see `UpperCasePipe`\n * @see `TitleCasePipe`\n * @usageNotes\n *\n * The following example defines a view that allows the user to enter\n * text, and then uses the pipe to convert the input text to all lower case.\n *\n * \n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass LowerCasePipe {\n transform(value) {\n if (value == null)\n return null;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(LowerCasePipe, value);\n }\n return value.toLowerCase();\n }\n}\nLowerCasePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LowerCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nLowerCasePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LowerCasePipe, name: \"lowercase\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: LowerCasePipe, decorators: [{\n type: Pipe,\n args: [{ name: 'lowercase' }]\n }] });\n//\n// Regex below matches any Unicode word and number compatible with ES5. In ES2018 the same result\n// can be achieved by using /[0-9\\p{L}]\\S*/gu and also known as Unicode Property Escapes\n// (https://2ality.com/2017/07/regexp-unicode-property-escapes.html). Since there is no\n// transpilation of this functionality down to ES5 without external tool, the only solution is\n// to use already transpiled form. Example can be found here -\n// https://mothereff.in/regexpu#input=var+regex+%3D+%2F%5B0-9%5Cp%7BL%7D%5D%5CS*%2Fgu%3B%0A%0A&unicodePropertyEscape=1\n//\nconst unicodeWordMatch = /(?:[0-9A-Za-z\\xAA\\xB5\\xBA\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u037F\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u052F\\u0531-\\u0556\\u0559\\u0560-\\u0588\\u05D0-\\u05EA\\u05EF-\\u05F2\\u0620-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0800-\\u0815\\u081A\\u0824\\u0828\\u0840-\\u0858\\u0860-\\u086A\\u0870-\\u0887\\u0889-\\u088E\\u08A0-\\u08C9\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971-\\u0980\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u09FC\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0AF9\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C39\\u0C3D\\u0C58-\\u0C5A\\u0C5D\\u0C60\\u0C61\\u0C80\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDD\\u0CDE\\u0CE0\\u0CE1\\u0CF1\\u0CF2\\u0D04-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D3A\\u0D3D\\u0D4E\\u0D54-\\u0D56\\u0D5F-\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E86-\\u0E8A\\u0E8C-\\u0EA3\\u0EA5\\u0EA7-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC-\\u0EDF\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8C\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10C7\\u10CD\\u10D0-\\u10FA\\u10FC-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F5\\u13F8-\\u13FD\\u1401-\\u166C\\u166F-\\u167F\\u1681-\\u169A\\u16A0-\\u16EA\\u16F1-\\u16F8\\u1700-\\u1711\\u171F-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1878\\u1880-\\u1884\\u1887-\\u18A8\\u18AA\\u18B0-\\u18F5\\u1900-\\u191E\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19AB\\u19B0-\\u19C9\\u1A00-\\u1A16\\u1A20-\\u1A54\\u1AA7\\u1B05-\\u1B33\\u1B45-\\u1B4C\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1BBA-\\u1BE5\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1C80-\\u1C88\\u1C90-\\u1CBA\\u1CBD-\\u1CBF\\u1CE9-\\u1CEC\\u1CEE-\\u1CF3\\u1CF5\\u1CF6\\u1CFA\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u209C\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2CE4\\u2CEB-\\u2CEE\\u2CF2\\u2CF3\\u2D00-\\u2D25\\u2D27\\u2D2D\\u2D30-\\u2D67\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312F\\u3131-\\u318E\\u31A0-\\u31BF\\u31F0-\\u31FF\\u3400-\\u4DBF\\u4E00-\\uA48C\\uA4D0-\\uA4FD\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA66E\\uA67F-\\uA69D\\uA6A0-\\uA6E5\\uA717-\\uA71F\\uA722-\\uA788\\uA78B-\\uA7CA\\uA7D0\\uA7D1\\uA7D3\\uA7D5-\\uA7D9\\uA7F2-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA8F2-\\uA8F7\\uA8FB\\uA8FD\\uA8FE\\uA90A-\\uA925\\uA930-\\uA946\\uA960-\\uA97C\\uA984-\\uA9B2\\uA9CF\\uA9E0-\\uA9E4\\uA9E6-\\uA9EF\\uA9FA-\\uA9FE\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAA60-\\uAA76\\uAA7A\\uAA7E-\\uAAAF\\uAAB1\\uAAB5\\uAAB6\\uAAB9-\\uAABD\\uAAC0\\uAAC2\\uAADB-\\uAADD\\uAAE0-\\uAAEA\\uAAF2-\\uAAF4\\uAB01-\\uAB06\\uAB09-\\uAB0E\\uAB11-\\uAB16\\uAB20-\\uAB26\\uAB28-\\uAB2E\\uAB30-\\uAB5A\\uAB5C-\\uAB69\\uAB70-\\uABE2\\uAC00-\\uD7A3\\uD7B0-\\uD7C6\\uD7CB-\\uD7FB\\uF900-\\uFA6D\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]|\\uD800[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1F\\uDF2D-\\uDF40\\uDF42-\\uDF49\\uDF50-\\uDF75\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF]|\\uD801[\\uDC00-\\uDC9D\\uDCB0-\\uDCD3\\uDCD8-\\uDCFB\\uDD00-\\uDD27\\uDD30-\\uDD63\\uDD70-\\uDD7A\\uDD7C-\\uDD8A\\uDD8C-\\uDD92\\uDD94\\uDD95\\uDD97-\\uDDA1\\uDDA3-\\uDDB1\\uDDB3-\\uDDB9\\uDDBB\\uDDBC\\uDE00-\\uDF36\\uDF40-\\uDF55\\uDF60-\\uDF67\\uDF80-\\uDF85\\uDF87-\\uDFB0\\uDFB2-\\uDFBA]|\\uD802[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDC60-\\uDC76\\uDC80-\\uDC9E\\uDCE0-\\uDCF2\\uDCF4\\uDCF5\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDD80-\\uDDB7\\uDDBE\\uDDBF\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE35\\uDE60-\\uDE7C\\uDE80-\\uDE9C\\uDEC0-\\uDEC7\\uDEC9-\\uDEE4\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72\\uDF80-\\uDF91]|\\uD803[\\uDC00-\\uDC48\\uDC80-\\uDCB2\\uDCC0-\\uDCF2\\uDD00-\\uDD23\\uDE80-\\uDEA9\\uDEB0\\uDEB1\\uDF00-\\uDF1C\\uDF27\\uDF30-\\uDF45\\uDF70-\\uDF81\\uDFB0-\\uDFC4\\uDFE0-\\uDFF6]|\\uD804[\\uDC03-\\uDC37\\uDC71\\uDC72\\uDC75\\uDC83-\\uDCAF\\uDCD0-\\uDCE8\\uDD03-\\uDD26\\uDD44\\uDD47\\uDD50-\\uDD72\\uDD76\\uDD83-\\uDDB2\\uDDC1-\\uDDC4\\uDDDA\\uDDDC\\uDE00-\\uDE11\\uDE13-\\uDE2B\\uDE80-\\uDE86\\uDE88\\uDE8A-\\uDE8D\\uDE8F-\\uDE9D\\uDE9F-\\uDEA8\\uDEB0-\\uDEDE\\uDF05-\\uDF0C\\uDF0F\\uDF10\\uDF13-\\uDF28\\uDF2A-\\uDF30\\uDF32\\uDF33\\uDF35-\\uDF39\\uDF3D\\uDF50\\uDF5D-\\uDF61]|\\uD805[\\uDC00-\\uDC34\\uDC47-\\uDC4A\\uDC5F-\\uDC61\\uDC80-\\uDCAF\\uDCC4\\uDCC5\\uDCC7\\uDD80-\\uDDAE\\uDDD8-\\uDDDB\\uDE00-\\uDE2F\\uDE44\\uDE80-\\uDEAA\\uDEB8\\uDF00-\\uDF1A\\uDF40-\\uDF46]|\\uD806[\\uDC00-\\uDC2B\\uDCA0-\\uDCDF\\uDCFF-\\uDD06\\uDD09\\uDD0C-\\uDD13\\uDD15\\uDD16\\uDD18-\\uDD2F\\uDD3F\\uDD41\\uDDA0-\\uDDA7\\uDDAA-\\uDDD0\\uDDE1\\uDDE3\\uDE00\\uDE0B-\\uDE32\\uDE3A\\uDE50\\uDE5C-\\uDE89\\uDE9D\\uDEB0-\\uDEF8]|\\uD807[\\uDC00-\\uDC08\\uDC0A-\\uDC2E\\uDC40\\uDC72-\\uDC8F\\uDD00-\\uDD06\\uDD08\\uDD09\\uDD0B-\\uDD30\\uDD46\\uDD60-\\uDD65\\uDD67\\uDD68\\uDD6A-\\uDD89\\uDD98\\uDEE0-\\uDEF2\\uDFB0]|\\uD808[\\uDC00-\\uDF99]|\\uD809[\\uDC80-\\uDD43]|\\uD80B[\\uDF90-\\uDFF0]|[\\uD80C\\uD81C-\\uD820\\uD822\\uD840-\\uD868\\uD86A-\\uD86C\\uD86F-\\uD872\\uD874-\\uD879\\uD880-\\uD883][\\uDC00-\\uDFFF]|\\uD80D[\\uDC00-\\uDC2E]|\\uD811[\\uDC00-\\uDE46]|\\uD81A[\\uDC00-\\uDE38\\uDE40-\\uDE5E\\uDE70-\\uDEBE\\uDED0-\\uDEED\\uDF00-\\uDF2F\\uDF40-\\uDF43\\uDF63-\\uDF77\\uDF7D-\\uDF8F]|\\uD81B[\\uDE40-\\uDE7F\\uDF00-\\uDF4A\\uDF50\\uDF93-\\uDF9F\\uDFE0\\uDFE1\\uDFE3]|\\uD821[\\uDC00-\\uDFF7]|\\uD823[\\uDC00-\\uDCD5\\uDD00-\\uDD08]|\\uD82B[\\uDFF0-\\uDFF3\\uDFF5-\\uDFFB\\uDFFD\\uDFFE]|\\uD82C[\\uDC00-\\uDD22\\uDD50-\\uDD52\\uDD64-\\uDD67\\uDD70-\\uDEFB]|\\uD82F[\\uDC00-\\uDC6A\\uDC70-\\uDC7C\\uDC80-\\uDC88\\uDC90-\\uDC99]|\\uD835[\\uDC00-\\uDC54\\uDC56-\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD1E-\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD52-\\uDEA5\\uDEA8-\\uDEC0\\uDEC2-\\uDEDA\\uDEDC-\\uDEFA\\uDEFC-\\uDF14\\uDF16-\\uDF34\\uDF36-\\uDF4E\\uDF50-\\uDF6E\\uDF70-\\uDF88\\uDF8A-\\uDFA8\\uDFAA-\\uDFC2\\uDFC4-\\uDFCB]|\\uD837[\\uDF00-\\uDF1E]|\\uD838[\\uDD00-\\uDD2C\\uDD37-\\uDD3D\\uDD4E\\uDE90-\\uDEAD\\uDEC0-\\uDEEB]|\\uD839[\\uDFE0-\\uDFE6\\uDFE8-\\uDFEB\\uDFED\\uDFEE\\uDFF0-\\uDFFE]|\\uD83A[\\uDC00-\\uDCC4\\uDD00-\\uDD43\\uDD4B]|\\uD83B[\\uDE00-\\uDE03\\uDE05-\\uDE1F\\uDE21\\uDE22\\uDE24\\uDE27\\uDE29-\\uDE32\\uDE34-\\uDE37\\uDE39\\uDE3B\\uDE42\\uDE47\\uDE49\\uDE4B\\uDE4D-\\uDE4F\\uDE51\\uDE52\\uDE54\\uDE57\\uDE59\\uDE5B\\uDE5D\\uDE5F\\uDE61\\uDE62\\uDE64\\uDE67-\\uDE6A\\uDE6C-\\uDE72\\uDE74-\\uDE77\\uDE79-\\uDE7C\\uDE7E\\uDE80-\\uDE89\\uDE8B-\\uDE9B\\uDEA1-\\uDEA3\\uDEA5-\\uDEA9\\uDEAB-\\uDEBB]|\\uD869[\\uDC00-\\uDEDF\\uDF00-\\uDFFF]|\\uD86D[\\uDC00-\\uDF38\\uDF40-\\uDFFF]|\\uD86E[\\uDC00-\\uDC1D\\uDC20-\\uDFFF]|\\uD873[\\uDC00-\\uDEA1\\uDEB0-\\uDFFF]|\\uD87A[\\uDC00-\\uDFE0]|\\uD87E[\\uDC00-\\uDE1D]|\\uD884[\\uDC00-\\uDF4A])\\S*/g;\n/**\n * Transforms text to title case.\n * Capitalizes the first letter of each word and transforms the\n * rest of the word to lower case.\n * Words are delimited by any whitespace character, such as a space, tab, or line-feed character.\n *\n * @see `LowerCasePipe`\n * @see `UpperCasePipe`\n *\n * @usageNotes\n * The following example shows the result of transforming various strings into title case.\n *\n * \n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass TitleCasePipe {\n transform(value) {\n if (value == null)\n return null;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(TitleCasePipe, value);\n }\n return value.replace(unicodeWordMatch, (txt => txt[0].toUpperCase() + txt.substr(1).toLowerCase()));\n }\n}\nTitleCasePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: TitleCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nTitleCasePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: TitleCasePipe, name: \"titlecase\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: TitleCasePipe, decorators: [{\n type: Pipe,\n args: [{ name: 'titlecase' }]\n }] });\n/**\n * Transforms text to all upper case.\n * @see `LowerCasePipe`\n * @see `TitleCasePipe`\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass UpperCasePipe {\n transform(value) {\n if (value == null)\n return null;\n if (typeof value !== 'string') {\n throw invalidPipeArgumentError(UpperCasePipe, value);\n }\n return value.toUpperCase();\n }\n}\nUpperCasePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: UpperCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nUpperCasePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: UpperCasePipe, name: \"uppercase\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: UpperCasePipe, decorators: [{\n type: Pipe,\n args: [{ name: 'uppercase' }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Optionally-provided default timezone to use for all instances of `DatePipe` (such as `'+0430'`).\n * If the value isn't provided, the `DatePipe` will use the end-user's local system timezone.\n */\nconst DATE_PIPE_DEFAULT_TIMEZONE = new InjectionToken('DATE_PIPE_DEFAULT_TIMEZONE');\n// clang-format off\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date value according to locale rules.\n *\n * `DatePipe` is executed only when it detects a pure change to the input value.\n * A pure change is either a change to a primitive input value\n * (such as `String`, `Number`, `Boolean`, or `Symbol`),\n * or a changed object reference (such as `Date`, `Array`, `Function`, or `Object`).\n *\n * Note that mutating a `Date` object does not cause the pipe to be rendered again.\n * To ensure that the pipe is executed, you must create a new `Date` object.\n *\n * Only the `en-US` locale data comes with Angular. To localize dates\n * in another language, you must import the corresponding locale data.\n * See the [I18n guide](guide/i18n-common-format-data-locale) for more information.\n *\n * The time zone of the formatted value can be specified either by passing it in as the second\n * parameter of the pipe, or by setting the default through the `DATE_PIPE_DEFAULT_TIMEZONE`\n * injection token. The value that is passed in as the second parameter takes precedence over\n * the one defined using the injection token.\n *\n * @see `formatDate()`\n *\n *\n * @usageNotes\n *\n * The result of this pipe is not reevaluated when the input is mutated. To avoid the need to\n * reformat the date on every change-detection cycle, treat the date as an immutable object\n * and change the reference when the pipe needs to run again.\n *\n * ### Pre-defined format options\n *\n * | Option | Equivalent to | Examples (given in `en-US` locale) |\n * |---------------|-------------------------------------|-------------------------------------------------|\n * | `'short'` | `'M/d/yy, h:mm a'` | `6/15/15, 9:03 AM` |\n * | `'medium'` | `'MMM d, y, h:mm:ss a'` | `Jun 15, 2015, 9:03:01 AM` |\n * | `'long'` | `'MMMM d, y, h:mm:ss a z'` | `June 15, 2015 at 9:03:01 AM GMT+1` |\n * | `'full'` | `'EEEE, MMMM d, y, h:mm:ss a zzzz'` | `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00` |\n * | `'shortDate'` | `'M/d/yy'` | `6/15/15` |\n * | `'mediumDate'`| `'MMM d, y'` | `Jun 15, 2015` |\n * | `'longDate'` | `'MMMM d, y'` | `June 15, 2015` |\n * | `'fullDate'` | `'EEEE, MMMM d, y'` | `Monday, June 15, 2015` |\n * | `'shortTime'` | `'h:mm a'` | `9:03 AM` |\n * | `'mediumTime'`| `'h:mm:ss a'` | `9:03:01 AM` |\n * | `'longTime'` | `'h:mm:ss a z'` | `9:03:01 AM GMT+1` |\n * | `'fullTime'` | `'h:mm:ss a zzzz'` | `9:03:01 AM GMT+01:00` |\n *\n * ### Custom format options\n *\n * You can construct a format string using symbols to specify the components\n * of a date-time value, as described in the following table.\n * Format details depend on the locale.\n * Fields marked with (*) are only available in the extra data set for the given locale.\n *\n * | Field type | Format | Description | Example Value |\n * |-------------------- |-------------|---------------------------------------------------------------|------------------------------------------------------------|\n * | Era | G, GG & GGG | Abbreviated | AD |\n * | | GGGG | Wide | Anno Domini |\n * | | GGGGG | Narrow | A |\n * | Year | y | Numeric: minimum digits | 2, 20, 201, 2017, 20173 |\n * | | yy | Numeric: 2 digits + zero padded | 02, 20, 01, 17, 73 |\n * | | yyy | Numeric: 3 digits + zero padded | 002, 020, 201, 2017, 20173 |\n * | | yyyy | Numeric: 4 digits or more + zero padded | 0002, 0020, 0201, 2017, 20173 |\n * | Week-numbering year | Y | Numeric: minimum digits | 2, 20, 201, 2017, 20173 |\n * | | YY | Numeric: 2 digits + zero padded | 02, 20, 01, 17, 73 |\n * | | YYY | Numeric: 3 digits + zero padded | 002, 020, 201, 2017, 20173 |\n * | | YYYY | Numeric: 4 digits or more + zero padded | 0002, 0020, 0201, 2017, 20173 |\n * | Month | M | Numeric: 1 digit | 9, 12 |\n * | | MM | Numeric: 2 digits + zero padded | 09, 12 |\n * | | MMM | Abbreviated | Sep |\n * | | MMMM | Wide | September |\n * | | MMMMM | Narrow | S |\n * | Month standalone | L | Numeric: 1 digit | 9, 12 |\n * | | LL | Numeric: 2 digits + zero padded | 09, 12 |\n * | | LLL | Abbreviated | Sep |\n * | | LLLL | Wide | September |\n * | | LLLLL | Narrow | S |\n * | Week of year | w | Numeric: minimum digits | 1... 53 |\n * | | ww | Numeric: 2 digits + zero padded | 01... 53 |\n * | Week of month | W | Numeric: 1 digit | 1... 5 |\n * | Day of month | d | Numeric: minimum digits | 1 |\n * | | dd | Numeric: 2 digits + zero padded | 01 |\n * | Week day | E, EE & EEE | Abbreviated | Tue |\n * | | EEEE | Wide | Tuesday |\n * | | EEEEE | Narrow | T |\n * | | EEEEEE | Short | Tu |\n * | Week day standalone | c, cc | Numeric: 1 digit | 2 |\n * | | ccc | Abbreviated | Tue |\n * | | cccc | Wide | Tuesday |\n * | | ccccc | Narrow | T |\n * | | cccccc | Short | Tu |\n * | Period | a, aa & aaa | Abbreviated | am/pm or AM/PM |\n * | | aaaa | Wide (fallback to `a` when missing) | ante meridiem/post meridiem |\n * | | aaaaa | Narrow | a/p |\n * | Period* | B, BB & BBB | Abbreviated | mid. |\n * | | BBBB | Wide | am, pm, midnight, noon, morning, afternoon, evening, night |\n * | | BBBBB | Narrow | md |\n * | Period standalone* | b, bb & bbb | Abbreviated | mid. |\n * | | bbbb | Wide | am, pm, midnight, noon, morning, afternoon, evening, night |\n * | | bbbbb | Narrow | md |\n * | Hour 1-12 | h | Numeric: minimum digits | 1, 12 |\n * | | hh | Numeric: 2 digits + zero padded | 01, 12 |\n * | Hour 0-23 | H | Numeric: minimum digits | 0, 23 |\n * | | HH | Numeric: 2 digits + zero padded | 00, 23 |\n * | Minute | m | Numeric: minimum digits | 8, 59 |\n * | | mm | Numeric: 2 digits + zero padded | 08, 59 |\n * | Second | s | Numeric: minimum digits | 0... 59 |\n * | | ss | Numeric: 2 digits + zero padded | 00... 59 |\n * | Fractional seconds | S | Numeric: 1 digit | 0... 9 |\n * | | SS | Numeric: 2 digits + zero padded | 00... 99 |\n * | | SSS | Numeric: 3 digits + zero padded (= milliseconds) | 000... 999 |\n * | Zone | z, zz & zzz | Short specific non location format (fallback to O) | GMT-8 |\n * | | zzzz | Long specific non location format (fallback to OOOO) | GMT-08:00 |\n * | | Z, ZZ & ZZZ | ISO8601 basic format | -0800 |\n * | | ZZZZ | Long localized GMT format | GMT-8:00 |\n * | | ZZZZZ | ISO8601 extended format + Z indicator for offset 0 (= XXXXX) | -08:00 |\n * | | O, OO & OOO | Short localized GMT format | GMT-8 |\n * | | OOOO | Long localized GMT format | GMT-08:00 |\n *\n *\n * ### Format examples\n *\n * These examples transform a date into various formats,\n * assuming that `dateObj` is a JavaScript `Date` object for\n * year: 2015, month: 6, day: 15, hour: 21, minute: 43, second: 11,\n * given in the local time for the `en-US` locale.\n *\n * ```\n * {{ dateObj | date }} // output is 'Jun 15, 2015'\n * {{ dateObj | date:'medium' }} // output is 'Jun 15, 2015, 9:43:11 PM'\n * {{ dateObj | date:'shortTime' }} // output is '9:43 PM'\n * {{ dateObj | date:'mm:ss' }} // output is '43:11'\n * ```\n *\n * ### Usage example\n *\n * The following component uses a date pipe to display the current date in different formats.\n *\n * ```\n * @Component({\n * selector: 'date-pipe',\n * template: `\n *
Today is {{today | date}}
\n *
Or if you prefer, {{today | date:'fullDate'}}
\n *
The time is {{today | date:'h:mm a z'}}
\n *
\n *\n * ```\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}\n * ```\n *\n * - `minIntegerDigits`:\n * The minimum number of integer digits before the decimal point.\n * Default is 1.\n *\n * - `minFractionDigits`:\n * The minimum number of digits after the decimal point.\n * Default is 0.\n *\n * - `maxFractionDigits`:\n * The maximum number of digits after the decimal point.\n * Default is 3.\n *\n * If the formatted value is truncated it will be rounded using the \"to-nearest\" method:\n *\n * ```\n * {{3.6 | number: '1.0-0'}}\n * \n *\n * {{-3.6 | number:'1.0-0'}}\n * \n * ```\n *\n * ### locale\n *\n * `locale` will format a value according to locale rules.\n * Locale determines group sizing and separator,\n * decimal point character, and other locale-specific configurations.\n *\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n *\n * See [Setting your app locale](guide/i18n-common-locale-id).\n *\n * ### Example\n *\n * The following code shows how the pipe transforms values\n * according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * \n *\n * @publicApi\n */\nclass DecimalPipe {\n constructor(_locale) {\n this._locale = _locale;\n }\n /**\n * @param value The value to be formatted.\n * @param digitsInfo Sets digit and decimal representation.\n * [See more](#digitsinfo).\n * @param locale Specifies what locale format rules to use.\n * [See more](#locale).\n */\n transform(value, digitsInfo, locale) {\n if (!isValue(value))\n return null;\n locale = locale || this._locale;\n try {\n const num = strToNumber(value);\n return formatNumber(num, locale, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(DecimalPipe, error.message);\n }\n }\n}\nDecimalPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: DecimalPipe, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Pipe });\nDecimalPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: DecimalPipe, name: \"number\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: DecimalPipe, decorators: [{\n type: Pipe,\n args: [{ name: 'number' }]\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }];\n } });\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a percentage\n * string, formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * @see `formatPercent()`\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * \n *\n * @publicApi\n */\nclass PercentPipe {\n constructor(_locale) {\n this._locale = _locale;\n }\n /**\n *\n * @param value The number to be formatted as a percentage.\n * @param digitsInfo Decimal representation options, specified by a string\n * in the following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}.\n * - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n * Default is `1`.\n * - `minFractionDigits`: The minimum number of digits after the decimal point.\n * Default is `0`.\n * - `maxFractionDigits`: The maximum number of digits after the decimal point.\n * Default is `0`.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n-common-locale-id).\n */\n transform(value, digitsInfo, locale) {\n if (!isValue(value))\n return null;\n locale = locale || this._locale;\n try {\n const num = strToNumber(value);\n return formatPercent(num, locale, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(PercentPipe, error.message);\n }\n }\n}\nPercentPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PercentPipe, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Pipe });\nPercentPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PercentPipe, name: \"percent\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: PercentPipe, decorators: [{\n type: Pipe,\n args: [{ name: 'percent' }]\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }];\n } });\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a currency string, formatted according to locale rules\n * that determine group sizing and separator, decimal-point character,\n * and other locale-specific configurations.\n *\n * {@a currency-code-deprecation}\n * \n *\n * **Deprecation notice:**\n *\n * The default currency code is currently always `USD` but this is deprecated from v9.\n *\n * **In v11 the default currency code will be taken from the current locale identified by\n * the `LOCALE_ID` token. See the [i18n guide](guide/i18n-common-locale-id) for\n * more information.**\n *\n * If you need the previous behavior then set it by creating a `DEFAULT_CURRENCY_CODE` provider in\n * your application `NgModule`:\n *\n * ```ts\n * {provide: DEFAULT_CURRENCY_CODE, useValue: 'USD'}\n * ```\n *\n *
\n *\n * @see `getCurrencySymbol()`\n * @see `formatCurrency()`\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * \n *\n * @publicApi\n */\nclass CurrencyPipe {\n constructor(_locale, _defaultCurrencyCode = 'USD') {\n this._locale = _locale;\n this._defaultCurrencyCode = _defaultCurrencyCode;\n }\n /**\n *\n * @param value The number to be formatted as currency.\n * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) currency code,\n * such as `USD` for the US dollar and `EUR` for the euro. The default currency code can be\n * configured using the `DEFAULT_CURRENCY_CODE` injection token.\n * @param display The format for the currency indicator. One of the following:\n * - `code`: Show the code (such as `USD`).\n * - `symbol`(default): Show the symbol (such as `$`).\n * - `symbol-narrow`: Use the narrow symbol for locales that have two symbols for their\n * currency.\n * For example, the Canadian dollar CAD has the symbol `CA$` and the symbol-narrow `$`. If the\n * locale has no narrow symbol, uses the standard symbol for the locale.\n * - String: Use the given string value instead of a code or a symbol.\n * For example, an empty string will suppress the currency & symbol.\n * - Boolean (marked deprecated in v5): `true` for symbol and false for `code`.\n *\n * @param digitsInfo Decimal representation options, specified by a string\n * in the following format:
\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}.\n * - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n * Default is `1`.\n * - `minFractionDigits`: The minimum number of digits after the decimal point.\n * Default is `2`.\n * - `maxFractionDigits`: The maximum number of digits after the decimal point.\n * Default is `2`.\n * If not provided, the number will be formatted with the proper amount of digits,\n * depending on what the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) specifies.\n * For example, the Canadian dollar has 2 digits, whereas the Chilean peso has none.\n * @param locale A locale code for the locale format rules to use.\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n * See [Setting your app locale](guide/i18n-common-locale-id).\n */\n transform(value, currencyCode = this._defaultCurrencyCode, display = 'symbol', digitsInfo, locale) {\n if (!isValue(value))\n return null;\n locale = locale || this._locale;\n if (typeof display === 'boolean') {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && console && console.warn) {\n console.warn(`Warning: the currency pipe has been changed in Angular v5. The symbolDisplay option (third parameter) is now a string instead of a boolean. The accepted values are \"code\", \"symbol\" or \"symbol-narrow\".`);\n }\n display = display ? 'symbol' : 'code';\n }\n let currency = currencyCode || this._defaultCurrencyCode;\n if (display !== 'code') {\n if (display === 'symbol' || display === 'symbol-narrow') {\n currency = getCurrencySymbol(currency, display === 'symbol' ? 'wide' : 'narrow', locale);\n }\n else {\n currency = display;\n }\n }\n try {\n const num = strToNumber(value);\n return formatCurrency(num, locale, currency, currencyCode, digitsInfo);\n }\n catch (error) {\n throw invalidPipeArgumentError(CurrencyPipe, error.message);\n }\n }\n}\nCurrencyPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CurrencyPipe, deps: [{ token: LOCALE_ID }, { token: DEFAULT_CURRENCY_CODE }], target: i0.ɵɵFactoryTarget.Pipe });\nCurrencyPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CurrencyPipe, name: \"currency\" });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CurrencyPipe, decorators: [{\n type: Pipe,\n args: [{ name: 'currency' }]\n }], ctorParameters: function () {\n return [{ type: undefined, decorators: [{\n type: Inject,\n args: [LOCALE_ID]\n }] }, { type: undefined, decorators: [{\n type: Inject,\n args: [DEFAULT_CURRENCY_CODE]\n }] }];\n } });\nfunction isValue(value) {\n return !(value == null || value === '' || value !== value);\n}\n/**\n * Transforms a string into a number (if needed).\n */\nfunction strToNumber(value) {\n // Convert strings to numbers\n if (typeof value === 'string' && !isNaN(Number(value) - parseFloat(value))) {\n return Number(value);\n }\n if (typeof value !== 'number') {\n throw new Error(`${value} is not a number`);\n }\n return value;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @ngModule CommonModule\n * @description\n *\n * Creates a new `Array` or `String` containing a subset (slice) of the elements.\n *\n * @usageNotes\n *\n * All behavior is based on the expected behavior of the JavaScript API `Array.prototype.slice()`\n * and `String.prototype.slice()`.\n *\n * When operating on an `Array`, the returned `Array` is always a copy even when all\n * the elements are being returned.\n *\n * When operating on a blank value, the pipe returns the blank value.\n *\n * ### List Example\n *\n * This `ngFor` example:\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_list'}\n *\n * produces the following:\n *\n * ```html\n * b\n * c\n * ```\n *\n * ### String Examples\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_string'}\n *\n * @publicApi\n */\nclass SlicePipe {\n transform(value, start, end) {\n if (value == null)\n return null;\n if (!this.supports(value)) {\n throw invalidPipeArgumentError(SlicePipe, value);\n }\n return value.slice(start, end);\n }\n supports(obj) {\n return typeof obj === 'string' || Array.isArray(obj);\n }\n}\nSlicePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: SlicePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe });\nSlicePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: SlicePipe, name: \"slice\", pure: false });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: SlicePipe, decorators: [{\n type: Pipe,\n args: [{ name: 'slice', pure: false }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A collection of Angular pipes that are likely to be used in each and every application.\n */\nconst COMMON_PIPES = [\n AsyncPipe,\n UpperCasePipe,\n LowerCasePipe,\n JsonPipe,\n SlicePipe,\n DecimalPipe,\n PercentPipe,\n TitleCasePipe,\n CurrencyPipe,\n DatePipe,\n I18nPluralPipe,\n I18nSelectPipe,\n KeyValuePipe,\n];\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Note: This does not contain the location providers,\n// as they need some platform specific implementations to work.\n/**\n * Exports all the basic Angular directives and pipes,\n * such as `NgIf`, `NgForOf`, `DecimalPipe`, and so on.\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command.\n *\n * * The `providers` options configure the NgModule's injector to provide\n * localization dependencies to members.\n * * The `exports` options make the declared directives and pipes available for import\n * by other NgModules.\n *\n * @publicApi\n */\nclass CommonModule {\n}\nCommonModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CommonModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nCommonModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CommonModule, declarations: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe], exports: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe] });\nCommonModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CommonModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: CommonModule, decorators: [{\n type: NgModule,\n args: [{\n declarations: [COMMON_DIRECTIVES, COMMON_PIPES],\n exports: [COMMON_DIRECTIVES, COMMON_PIPES],\n }]\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst PLATFORM_BROWSER_ID = 'browser';\nconst PLATFORM_SERVER_ID = 'server';\nconst PLATFORM_WORKER_APP_ID = 'browserWorkerApp';\nconst PLATFORM_WORKER_UI_ID = 'browserWorkerUi';\n/**\n * Returns whether a platform id represents a browser platform.\n * @publicApi\n */\nfunction isPlatformBrowser(platformId) {\n return platformId === PLATFORM_BROWSER_ID;\n}\n/**\n * Returns whether a platform id represents a server platform.\n * @publicApi\n */\nfunction isPlatformServer(platformId) {\n return platformId === PLATFORM_SERVER_ID;\n}\n/**\n * Returns whether a platform id represents a web worker app platform.\n * @publicApi\n */\nfunction isPlatformWorkerApp(platformId) {\n return platformId === PLATFORM_WORKER_APP_ID;\n}\n/**\n * Returns whether a platform id represents a web worker UI platform.\n * @publicApi\n */\nfunction isPlatformWorkerUi(platformId) {\n return platformId === PLATFORM_WORKER_UI_ID;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @publicApi\n */\nconst VERSION = new Version('13.2.6');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Defines a scroll position manager. Implemented by `BrowserViewportScroller`.\n *\n * @publicApi\n */\nclass ViewportScroller {\n}\n// De-sugared tree-shakable injection\n// See #23917\n/** @nocollapse */\nViewportScroller.ɵprov = ɵɵdefineInjectable({\n token: ViewportScroller,\n providedIn: 'root',\n factory: () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window)\n});\n/**\n * Manages the scroll position for a browser window.\n */\nclass BrowserViewportScroller {\n constructor(document, window) {\n this.document = document;\n this.window = window;\n this.offset = () => [0, 0];\n }\n /**\n * Configures the top offset used when scrolling to an anchor.\n * @param offset A position in screen coordinates (a tuple with x and y values)\n * or a function that returns the top offset position.\n *\n */\n setOffset(offset) {\n if (Array.isArray(offset)) {\n this.offset = () => offset;\n }\n else {\n this.offset = offset;\n }\n }\n /**\n * Retrieves the current scroll position.\n * @returns The position in screen coordinates.\n */\n getScrollPosition() {\n if (this.supportsScrolling()) {\n return [this.window.pageXOffset, this.window.pageYOffset];\n }\n else {\n return [0, 0];\n }\n }\n /**\n * Sets the scroll position.\n * @param position The new position in screen coordinates.\n */\n scrollToPosition(position) {\n if (this.supportsScrolling()) {\n this.window.scrollTo(position[0], position[1]);\n }\n }\n /**\n * Scrolls to an element and attempts to focus the element.\n *\n * Note that the function name here is misleading in that the target string may be an ID for a\n * non-anchor element.\n *\n * @param target The ID of an element or name of the anchor.\n *\n * @see https://html.spec.whatwg.org/#the-indicated-part-of-the-document\n * @see https://html.spec.whatwg.org/#scroll-to-fragid\n */\n scrollToAnchor(target) {\n if (!this.supportsScrolling()) {\n return;\n }\n const elSelected = findAnchorFromDocument(this.document, target);\n if (elSelected) {\n this.scrollToElement(elSelected);\n // After scrolling to the element, the spec dictates that we follow the focus steps for the\n // target. Rather than following the robust steps, simply attempt focus.\n //\n // @see https://html.spec.whatwg.org/#get-the-focusable-area\n // @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus\n // @see https://html.spec.whatwg.org/#focusable-area\n elSelected.focus();\n }\n }\n /**\n * Disables automatic scroll restoration provided by the browser.\n */\n setHistoryScrollRestoration(scrollRestoration) {\n if (this.supportScrollRestoration()) {\n const history = this.window.history;\n if (history && history.scrollRestoration) {\n history.scrollRestoration = scrollRestoration;\n }\n }\n }\n /**\n * Scrolls to an element using the native offset and the specified offset set on this scroller.\n *\n * The offset can be used when we know that there is a floating header and scrolling naively to an\n * element (ex: `scrollIntoView`) leaves the element hidden behind the floating header.\n */\n scrollToElement(el) {\n const rect = el.getBoundingClientRect();\n const left = rect.left + this.window.pageXOffset;\n const top = rect.top + this.window.pageYOffset;\n const offset = this.offset();\n this.window.scrollTo(left - offset[0], top - offset[1]);\n }\n /**\n * We only support scroll restoration when we can get a hold of window.\n * This means that we do not support this behavior when running in a web worker.\n *\n * Lifting this restriction right now would require more changes in the dom adapter.\n * Since webworkers aren't widely used, we will lift it once RouterScroller is\n * battle-tested.\n */\n supportScrollRestoration() {\n try {\n if (!this.supportsScrolling()) {\n return false;\n }\n // The `scrollRestoration` property could be on the `history` instance or its prototype.\n const scrollRestorationDescriptor = getScrollRestorationProperty(this.window.history) ||\n getScrollRestorationProperty(Object.getPrototypeOf(this.window.history));\n // We can write to the `scrollRestoration` property if it is a writable data field or it has a\n // setter function.\n return !!scrollRestorationDescriptor &&\n !!(scrollRestorationDescriptor.writable || scrollRestorationDescriptor.set);\n }\n catch (_a) {\n return false;\n }\n }\n supportsScrolling() {\n try {\n return !!this.window && !!this.window.scrollTo && 'pageXOffset' in this.window;\n }\n catch (_a) {\n return false;\n }\n }\n}\nfunction getScrollRestorationProperty(obj) {\n return Object.getOwnPropertyDescriptor(obj, 'scrollRestoration');\n}\nfunction findAnchorFromDocument(document, target) {\n const documentResult = document.getElementById(target) || document.getElementsByName(target)[0];\n if (documentResult) {\n return documentResult;\n }\n // `getElementById` and `getElementsByName` won't pierce through the shadow DOM so we\n // have to traverse the DOM manually and do the lookup through the shadow roots.\n if (typeof document.createTreeWalker === 'function' && document.body &&\n (document.body.createShadowRoot || document.body.attachShadow)) {\n const treeWalker = document.createTreeWalker(document.body, NodeFilter.SHOW_ELEMENT);\n let currentNode = treeWalker.currentNode;\n while (currentNode) {\n const shadowRoot = currentNode.shadowRoot;\n if (shadowRoot) {\n // Note that `ShadowRoot` doesn't support `getElementsByName`\n // so we have to fall back to `querySelector`.\n const result = shadowRoot.getElementById(target) || shadowRoot.querySelector(`[name=\"${target}\"]`);\n if (result) {\n return result;\n }\n }\n currentNode = treeWalker.nextNode();\n }\n }\n return null;\n}\n/**\n * Provides an empty implementation of the viewport scroller.\n */\nclass NullViewportScroller {\n /**\n * Empty implementation\n */\n setOffset(offset) { }\n /**\n * Empty implementation\n */\n getScrollPosition() {\n return [0, 0];\n }\n /**\n * Empty implementation\n */\n scrollToPosition(position) { }\n /**\n * Empty implementation\n */\n scrollToAnchor(anchor) { }\n /**\n * Empty implementation\n */\n setHistoryScrollRestoration(scrollRestoration) { }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A wrapper around the `XMLHttpRequest` constructor.\n *\n * @publicApi\n */\nclass XhrFactory {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { APP_BASE_HREF, AsyncPipe, CommonModule, CurrencyPipe, DATE_PIPE_DEFAULT_TIMEZONE, DOCUMENT, DatePipe, DecimalPipe, FormStyle, FormatWidth, HashLocationStrategy, I18nPluralPipe, I18nSelectPipe, JsonPipe, KeyValuePipe, LOCATION_INITIALIZED, Location, LocationStrategy, LowerCasePipe, NgClass, NgComponentOutlet, NgForOf, NgForOfContext, NgIf, NgIfContext, NgLocaleLocalization, NgLocalization, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NumberFormatStyle, NumberSymbol, PathLocationStrategy, PercentPipe, PlatformLocation, Plural, SlicePipe, TitleCasePipe, TranslationWidth, UpperCasePipe, VERSION, ViewportScroller, WeekDay, XhrFactory, formatCurrency, formatDate, formatNumber, formatPercent, getCurrencySymbol, getLocaleCurrencyCode, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleDayNames, getLocaleDayPeriods, getLocaleDirection, getLocaleEraNames, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocaleFirstDayOfWeek, getLocaleId, getLocaleMonthNames, getLocaleNumberFormat, getLocaleNumberSymbol, getLocalePluralCase, getLocaleTimeFormat, getLocaleWeekEndRange, getNumberOfCurrencyDigits, isPlatformBrowser, isPlatformServer, isPlatformWorkerApp, isPlatformWorkerUi, registerLocaleData, BrowserPlatformLocation as ɵBrowserPlatformLocation, DomAdapter as ɵDomAdapter, NullViewportScroller as ɵNullViewportScroller, PLATFORM_BROWSER_ID as ɵPLATFORM_BROWSER_ID, PLATFORM_SERVER_ID as ɵPLATFORM_SERVER_ID, PLATFORM_WORKER_APP_ID as ɵPLATFORM_WORKER_APP_ID, PLATFORM_WORKER_UI_ID as ɵPLATFORM_WORKER_UI_ID, getDOM as ɵgetDOM, parseCookieValue as ɵparseCookieValue, setRootDomAdapter as ɵsetRootDomAdapter };\n","/**\n * @license Angular v13.2.6\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i1 from '@angular/common';\nimport { DOCUMENT, ɵparseCookieValue, XhrFactory as XhrFactory$1 } from '@angular/common';\nimport * as i0 from '@angular/core';\nimport { Injectable, InjectionToken, Inject, PLATFORM_ID, NgModule } from '@angular/core';\nimport { of, Observable } from 'rxjs';\nimport { concatMap, filter, map } from 'rxjs/operators';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a\n * `HttpResponse`.\n *\n * `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the\n * first interceptor in the chain, which dispatches to the second, etc, eventually reaching the\n * `HttpBackend`.\n *\n * In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.\n *\n * @publicApi\n */\nclass HttpHandler {\n}\n/**\n * A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.\n *\n * Interceptors sit between the `HttpClient` interface and the `HttpBackend`.\n *\n * When injected, `HttpBackend` dispatches requests directly to the backend, without going\n * through the interceptor chain.\n *\n * @publicApi\n */\nclass HttpBackend {\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents the header configuration options for an HTTP request.\n * Instances are immutable. Modifying methods return a cloned\n * instance with the change. The original object is never changed.\n *\n * @publicApi\n */\nclass HttpHeaders {\n /** Constructs a new HTTP header object with the given values.*/\n constructor(headers) {\n /**\n * Internal map of lowercased header names to the normalized\n * form of the name (the form seen first).\n */\n this.normalizedNames = new Map();\n /**\n * Queued updates to be materialized the next initialization.\n */\n this.lazyUpdate = null;\n if (!headers) {\n this.headers = new Map();\n }\n else if (typeof headers === 'string') {\n this.lazyInit = () => {\n this.headers = new Map();\n headers.split('\\n').forEach(line => {\n const index = line.indexOf(':');\n if (index > 0) {\n const name = line.slice(0, index);\n const key = name.toLowerCase();\n const value = line.slice(index + 1).trim();\n this.maybeSetNormalizedName(name, key);\n if (this.headers.has(key)) {\n this.headers.get(key).push(value);\n }\n else {\n this.headers.set(key, [value]);\n }\n }\n });\n };\n }\n else {\n this.lazyInit = () => {\n this.headers = new Map();\n Object.keys(headers).forEach(name => {\n let values = headers[name];\n const key = name.toLowerCase();\n if (typeof values === 'string') {\n values = [values];\n }\n if (values.length > 0) {\n this.headers.set(key, values);\n this.maybeSetNormalizedName(name, key);\n }\n });\n };\n }\n }\n /**\n * Checks for existence of a given header.\n *\n * @param name The header name to check for existence.\n *\n * @returns True if the header exists, false otherwise.\n */\n has(name) {\n this.init();\n return this.headers.has(name.toLowerCase());\n }\n /**\n * Retrieves the first value of a given header.\n *\n * @param name The header name.\n *\n * @returns The value string if the header exists, null otherwise\n */\n get(name) {\n this.init();\n const values = this.headers.get(name.toLowerCase());\n return values && values.length > 0 ? values[0] : null;\n }\n /**\n * Retrieves the names of the headers.\n *\n * @returns A list of header names.\n */\n keys() {\n this.init();\n return Array.from(this.normalizedNames.values());\n }\n /**\n * Retrieves a list of values for a given header.\n *\n * @param name The header name from which to retrieve values.\n *\n * @returns A string of values if the header exists, null otherwise.\n */\n getAll(name) {\n this.init();\n return this.headers.get(name.toLowerCase()) || null;\n }\n /**\n * Appends a new value to the existing set of values for a header\n * and returns them in a clone of the original instance.\n *\n * @param name The header name for which to append the values.\n * @param value The value to append.\n *\n * @returns A clone of the HTTP headers object with the value appended to the given header.\n */\n append(name, value) {\n return this.clone({ name, value, op: 'a' });\n }\n /**\n * Sets or modifies a value for a given header in a clone of the original instance.\n * If the header already exists, its value is replaced with the given value\n * in the returned object.\n *\n * @param name The header name.\n * @param value The value or values to set or overide for the given header.\n *\n * @returns A clone of the HTTP headers object with the newly set header value.\n */\n set(name, value) {\n return this.clone({ name, value, op: 's' });\n }\n /**\n * Deletes values for a given header in a clone of the original instance.\n *\n * @param name The header name.\n * @param value The value or values to delete for the given header.\n *\n * @returns A clone of the HTTP headers object with the given value deleted.\n */\n delete(name, value) {\n return this.clone({ name, value, op: 'd' });\n }\n maybeSetNormalizedName(name, lcName) {\n if (!this.normalizedNames.has(lcName)) {\n this.normalizedNames.set(lcName, name);\n }\n }\n init() {\n if (!!this.lazyInit) {\n if (this.lazyInit instanceof HttpHeaders) {\n this.copyFrom(this.lazyInit);\n }\n else {\n this.lazyInit();\n }\n this.lazyInit = null;\n if (!!this.lazyUpdate) {\n this.lazyUpdate.forEach(update => this.applyUpdate(update));\n this.lazyUpdate = null;\n }\n }\n }\n copyFrom(other) {\n other.init();\n Array.from(other.headers.keys()).forEach(key => {\n this.headers.set(key, other.headers.get(key));\n this.normalizedNames.set(key, other.normalizedNames.get(key));\n });\n }\n clone(update) {\n const clone = new HttpHeaders();\n clone.lazyInit =\n (!!this.lazyInit && this.lazyInit instanceof HttpHeaders) ? this.lazyInit : this;\n clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);\n return clone;\n }\n applyUpdate(update) {\n const key = update.name.toLowerCase();\n switch (update.op) {\n case 'a':\n case 's':\n let value = update.value;\n if (typeof value === 'string') {\n value = [value];\n }\n if (value.length === 0) {\n return;\n }\n this.maybeSetNormalizedName(update.name, key);\n const base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];\n base.push(...value);\n this.headers.set(key, base);\n break;\n case 'd':\n const toDelete = update.value;\n if (!toDelete) {\n this.headers.delete(key);\n this.normalizedNames.delete(key);\n }\n else {\n let existing = this.headers.get(key);\n if (!existing) {\n return;\n }\n existing = existing.filter(value => toDelete.indexOf(value) === -1);\n if (existing.length === 0) {\n this.headers.delete(key);\n this.normalizedNames.delete(key);\n }\n else {\n this.headers.set(key, existing);\n }\n }\n break;\n }\n }\n /**\n * @internal\n */\n forEach(fn) {\n this.init();\n Array.from(this.normalizedNames.keys())\n .forEach(key => fn(this.normalizedNames.get(key), this.headers.get(key)));\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Provides encoding and decoding of URL parameter and query-string values.\n *\n * Serializes and parses URL parameter keys and values to encode and decode them.\n * If you pass URL query parameters without encoding,\n * the query parameters can be misinterpreted at the receiving end.\n *\n *\n * @publicApi\n */\nclass HttpUrlEncodingCodec {\n /**\n * Encodes a key name for a URL parameter or query-string.\n * @param key The key name.\n * @returns The encoded key name.\n */\n encodeKey(key) {\n return standardEncoding(key);\n }\n /**\n * Encodes the value of a URL parameter or query-string.\n * @param value The value.\n * @returns The encoded value.\n */\n encodeValue(value) {\n return standardEncoding(value);\n }\n /**\n * Decodes an encoded URL parameter or query-string key.\n * @param key The encoded key name.\n * @returns The decoded key name.\n */\n decodeKey(key) {\n return decodeURIComponent(key);\n }\n /**\n * Decodes an encoded URL parameter or query-string value.\n * @param value The encoded value.\n * @returns The decoded value.\n */\n decodeValue(value) {\n return decodeURIComponent(value);\n }\n}\nfunction paramParser(rawParams, codec) {\n const map = new Map();\n if (rawParams.length > 0) {\n // The `window.location.search` can be used while creating an instance of the `HttpParams` class\n // (e.g. `new HttpParams({ fromString: window.location.search })`). The `window.location.search`\n // may start with the `?` char, so we strip it if it's present.\n const params = rawParams.replace(/^\\?/, '').split('&');\n params.forEach((param) => {\n const eqIdx = param.indexOf('=');\n const [key, val] = eqIdx == -1 ?\n [codec.decodeKey(param), ''] :\n [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];\n const list = map.get(key) || [];\n list.push(val);\n map.set(key, list);\n });\n }\n return map;\n}\n/**\n * Encode input string with standard encodeURIComponent and then un-encode specific characters.\n */\nconst STANDARD_ENCODING_REGEX = /%(\\d[a-f0-9])/gi;\nconst STANDARD_ENCODING_REPLACEMENTS = {\n '40': '@',\n '3A': ':',\n '24': '$',\n '2C': ',',\n '3B': ';',\n '2B': '+',\n '3D': '=',\n '3F': '?',\n '2F': '/',\n};\nfunction standardEncoding(v) {\n return encodeURIComponent(v).replace(STANDARD_ENCODING_REGEX, (s, t) => { var _a; return (_a = STANDARD_ENCODING_REPLACEMENTS[t]) !== null && _a !== void 0 ? _a : s; });\n}\nfunction valueToString(value) {\n return `${value}`;\n}\n/**\n * An HTTP request/response body that represents serialized parameters,\n * per the MIME type `application/x-www-form-urlencoded`.\n *\n * This class is immutable; all mutation operations return a new instance.\n *\n * @publicApi\n */\nclass HttpParams {\n constructor(options = {}) {\n this.updates = null;\n this.cloneFrom = null;\n this.encoder = options.encoder || new HttpUrlEncodingCodec();\n if (!!options.fromString) {\n if (!!options.fromObject) {\n throw new Error(`Cannot specify both fromString and fromObject.`);\n }\n this.map = paramParser(options.fromString, this.encoder);\n }\n else if (!!options.fromObject) {\n this.map = new Map();\n Object.keys(options.fromObject).forEach(key => {\n const value = options.fromObject[key];\n this.map.set(key, Array.isArray(value) ? value : [value]);\n });\n }\n else {\n this.map = null;\n }\n }\n /**\n * Reports whether the body includes one or more values for a given parameter.\n * @param param The parameter name.\n * @returns True if the parameter has one or more values,\n * false if it has no value or is not present.\n */\n has(param) {\n this.init();\n return this.map.has(param);\n }\n /**\n * Retrieves the first value for a parameter.\n * @param param The parameter name.\n * @returns The first value of the given parameter,\n * or `null` if the parameter is not present.\n */\n get(param) {\n this.init();\n const res = this.map.get(param);\n return !!res ? res[0] : null;\n }\n /**\n * Retrieves all values for a parameter.\n * @param param The parameter name.\n * @returns All values in a string array,\n * or `null` if the parameter not present.\n */\n getAll(param) {\n this.init();\n return this.map.get(param) || null;\n }\n /**\n * Retrieves all the parameters for this body.\n * @returns The parameter names in a string array.\n */\n keys() {\n this.init();\n return Array.from(this.map.keys());\n }\n /**\n * Appends a new value to existing values for a parameter.\n * @param param The parameter name.\n * @param value The new value to add.\n * @return A new body with the appended value.\n */\n append(param, value) {\n return this.clone({ param, value, op: 'a' });\n }\n /**\n * Constructs a new body with appended values for the given parameter name.\n * @param params parameters and values\n * @return A new body with the new value.\n */\n appendAll(params) {\n const updates = [];\n Object.keys(params).forEach(param => {\n const value = params[param];\n if (Array.isArray(value)) {\n value.forEach(_value => {\n updates.push({ param, value: _value, op: 'a' });\n });\n }\n else {\n updates.push({ param, value: value, op: 'a' });\n }\n });\n return this.clone(updates);\n }\n /**\n * Replaces the value for a parameter.\n * @param param The parameter name.\n * @param value The new value.\n * @return A new body with the new value.\n */\n set(param, value) {\n return this.clone({ param, value, op: 's' });\n }\n /**\n * Removes a given value or all values from a parameter.\n * @param param The parameter name.\n * @param value The value to remove, if provided.\n * @return A new body with the given value removed, or with all values\n * removed if no value is specified.\n */\n delete(param, value) {\n return this.clone({ param, value, op: 'd' });\n }\n /**\n * Serializes the body to an encoded string, where key-value pairs (separated by `=`) are\n * separated by `&`s.\n */\n toString() {\n this.init();\n return this.keys()\n .map(key => {\n const eKey = this.encoder.encodeKey(key);\n // `a: ['1']` produces `'a=1'`\n // `b: []` produces `''`\n // `c: ['1', '2']` produces `'c=1&c=2'`\n return this.map.get(key).map(value => eKey + '=' + this.encoder.encodeValue(value))\n .join('&');\n })\n // filter out empty values because `b: []` produces `''`\n // which results in `a=1&&c=1&c=2` instead of `a=1&c=1&c=2` if we don't\n .filter(param => param !== '')\n .join('&');\n }\n clone(update) {\n const clone = new HttpParams({ encoder: this.encoder });\n clone.cloneFrom = this.cloneFrom || this;\n clone.updates = (this.updates || []).concat(update);\n return clone;\n }\n init() {\n if (this.map === null) {\n this.map = new Map();\n }\n if (this.cloneFrom !== null) {\n this.cloneFrom.init();\n this.cloneFrom.keys().forEach(key => this.map.set(key, this.cloneFrom.map.get(key)));\n this.updates.forEach(update => {\n switch (update.op) {\n case 'a':\n case 's':\n const base = (update.op === 'a' ? this.map.get(update.param) : undefined) || [];\n base.push(valueToString(update.value));\n this.map.set(update.param, base);\n break;\n case 'd':\n if (update.value !== undefined) {\n let base = this.map.get(update.param) || [];\n const idx = base.indexOf(valueToString(update.value));\n if (idx !== -1) {\n base.splice(idx, 1);\n }\n if (base.length > 0) {\n this.map.set(update.param, base);\n }\n else {\n this.map.delete(update.param);\n }\n }\n else {\n this.map.delete(update.param);\n break;\n }\n }\n });\n this.cloneFrom = this.updates = null;\n }\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A token used to manipulate and access values stored in `HttpContext`.\n *\n * @publicApi\n */\nclass HttpContextToken {\n constructor(defaultValue) {\n this.defaultValue = defaultValue;\n }\n}\n/**\n * Http context stores arbitrary user defined values and ensures type safety without\n * actually knowing the types. It is backed by a `Map` and guarantees that keys do not clash.\n *\n * This context is mutable and is shared between cloned requests unless explicitly specified.\n *\n * @usageNotes\n *\n * ### Usage Example\n *\n * ```typescript\n * // inside cache.interceptors.ts\n * export const IS_CACHE_ENABLED = new HttpContextToken(() => false);\n *\n * export class CacheInterceptor implements HttpInterceptor {\n *\n * intercept(req: HttpRequest, delegate: HttpHandler): Observable> {\n * if (req.context.get(IS_CACHE_ENABLED) === true) {\n * return ...;\n * }\n * return delegate.handle(req);\n * }\n * }\n *\n * // inside a service\n *\n * this.httpClient.get('/api/weather', {\n * context: new HttpContext().set(IS_CACHE_ENABLED, true)\n * }).subscribe(...);\n * ```\n *\n * @publicApi\n */\nclass HttpContext {\n constructor() {\n this.map = new Map();\n }\n /**\n * Store a value in the context. If a value is already present it will be overwritten.\n *\n * @param token The reference to an instance of `HttpContextToken`.\n * @param value The value to store.\n *\n * @returns A reference to itself for easy chaining.\n */\n set(token, value) {\n this.map.set(token, value);\n return this;\n }\n /**\n * Retrieve the value associated with the given token.\n *\n * @param token The reference to an instance of `HttpContextToken`.\n *\n * @returns The stored value or default if one is defined.\n */\n get(token) {\n if (!this.map.has(token)) {\n this.map.set(token, token.defaultValue());\n }\n return this.map.get(token);\n }\n /**\n * Delete the value associated with the given token.\n *\n * @param token The reference to an instance of `HttpContextToken`.\n *\n * @returns A reference to itself for easy chaining.\n */\n delete(token) {\n this.map.delete(token);\n return this;\n }\n /**\n * Checks for existence of a given token.\n *\n * @param token The reference to an instance of `HttpContextToken`.\n *\n * @returns True if the token exists, false otherwise.\n */\n has(token) {\n return this.map.has(token);\n }\n /**\n * @returns a list of tokens currently stored in the context.\n */\n keys() {\n return this.map.keys();\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Determine whether the given HTTP method may include a body.\n */\nfunction mightHaveBody(method) {\n switch (method) {\n case 'DELETE':\n case 'GET':\n case 'HEAD':\n case 'OPTIONS':\n case 'JSONP':\n return false;\n default:\n return true;\n }\n}\n/**\n * Safely assert whether the given value is an ArrayBuffer.\n *\n * In some execution environments ArrayBuffer is not defined.\n */\nfunction isArrayBuffer(value) {\n return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;\n}\n/**\n * Safely assert whether the given value is a Blob.\n *\n * In some execution environments Blob is not defined.\n */\nfunction isBlob(value) {\n return typeof Blob !== 'undefined' && value instanceof Blob;\n}\n/**\n * Safely assert whether the given value is a FormData instance.\n *\n * In some execution environments FormData is not defined.\n */\nfunction isFormData(value) {\n return typeof FormData !== 'undefined' && value instanceof FormData;\n}\n/**\n * Safely assert whether the given value is a URLSearchParams instance.\n *\n * In some execution environments URLSearchParams is not defined.\n */\nfunction isUrlSearchParams(value) {\n return typeof URLSearchParams !== 'undefined' && value instanceof URLSearchParams;\n}\n/**\n * An outgoing HTTP request with an optional typed body.\n *\n * `HttpRequest` represents an outgoing request, including URL, method,\n * headers, body, and other request configuration options. Instances should be\n * assumed to be immutable. To modify a `HttpRequest`, the `clone`\n * method should be used.\n *\n * @publicApi\n */\nclass HttpRequest {\n constructor(method, url, third, fourth) {\n this.url = url;\n /**\n * The request body, or `null` if one isn't set.\n *\n * Bodies are not enforced to be immutable, as they can include a reference to any\n * user-defined data type. However, interceptors should take care to preserve\n * idempotence by treating them as such.\n */\n this.body = null;\n /**\n * Whether this request should be made in a way that exposes progress events.\n *\n * Progress events are expensive (change detection runs on each event) and so\n * they should only be requested if the consumer intends to monitor them.\n */\n this.reportProgress = false;\n /**\n * Whether this request should be sent with outgoing credentials (cookies).\n */\n this.withCredentials = false;\n /**\n * The expected response type of the server.\n *\n * This is used to parse the response appropriately before returning it to\n * the requestee.\n */\n this.responseType = 'json';\n this.method = method.toUpperCase();\n // Next, need to figure out which argument holds the HttpRequestInit\n // options, if any.\n let options;\n // Check whether a body argument is expected. The only valid way to omit\n // the body argument is to use a known no-body method like GET.\n if (mightHaveBody(this.method) || !!fourth) {\n // Body is the third argument, options are the fourth.\n this.body = (third !== undefined) ? third : null;\n options = fourth;\n }\n else {\n // No body required, options are the third argument. The body stays null.\n options = third;\n }\n // If options have been passed, interpret them.\n if (options) {\n // Normalize reportProgress and withCredentials.\n this.reportProgress = !!options.reportProgress;\n this.withCredentials = !!options.withCredentials;\n // Override default response type of 'json' if one is provided.\n if (!!options.responseType) {\n this.responseType = options.responseType;\n }\n // Override headers if they're provided.\n if (!!options.headers) {\n this.headers = options.headers;\n }\n if (!!options.context) {\n this.context = options.context;\n }\n if (!!options.params) {\n this.params = options.params;\n }\n }\n // If no headers have been passed in, construct a new HttpHeaders instance.\n if (!this.headers) {\n this.headers = new HttpHeaders();\n }\n // If no context have been passed in, construct a new HttpContext instance.\n if (!this.context) {\n this.context = new HttpContext();\n }\n // If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.\n if (!this.params) {\n this.params = new HttpParams();\n this.urlWithParams = url;\n }\n else {\n // Encode the parameters to a string in preparation for inclusion in the URL.\n const params = this.params.toString();\n if (params.length === 0) {\n // No parameters, the visible URL is just the URL given at creation time.\n this.urlWithParams = url;\n }\n else {\n // Does the URL already have query parameters? Look for '?'.\n const qIdx = url.indexOf('?');\n // There are 3 cases to handle:\n // 1) No existing parameters -> append '?' followed by params.\n // 2) '?' exists and is followed by existing query string ->\n // append '&' followed by params.\n // 3) '?' exists at the end of the url -> append params directly.\n // This basically amounts to determining the character, if any, with\n // which to join the URL and parameters.\n const sep = qIdx === -1 ? '?' : (qIdx < url.length - 1 ? '&' : '');\n this.urlWithParams = url + sep + params;\n }\n }\n }\n /**\n * Transform the free-form body into a serialized format suitable for\n * transmission to the server.\n */\n serializeBody() {\n // If no body is present, no need to serialize it.\n if (this.body === null) {\n return null;\n }\n // Check whether the body is already in a serialized form. If so,\n // it can just be returned directly.\n if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) ||\n isUrlSearchParams(this.body) || typeof this.body === 'string') {\n return this.body;\n }\n // Check whether the body is an instance of HttpUrlEncodedParams.\n if (this.body instanceof HttpParams) {\n return this.body.toString();\n }\n // Check whether the body is an object or array, and serialize with JSON if so.\n if (typeof this.body === 'object' || typeof this.body === 'boolean' ||\n Array.isArray(this.body)) {\n return JSON.stringify(this.body);\n }\n // Fall back on toString() for everything else.\n return this.body.toString();\n }\n /**\n * Examine the body and attempt to infer an appropriate MIME type\n * for it.\n *\n * If no such type can be inferred, this method will return `null`.\n */\n detectContentTypeHeader() {\n // An empty body has no content type.\n if (this.body === null) {\n return null;\n }\n // FormData bodies rely on the browser's content type assignment.\n if (isFormData(this.body)) {\n return null;\n }\n // Blobs usually have their own content type. If it doesn't, then\n // no type can be inferred.\n if (isBlob(this.body)) {\n return this.body.type || null;\n }\n // Array buffers have unknown contents and thus no type can be inferred.\n if (isArrayBuffer(this.body)) {\n return null;\n }\n // Technically, strings could be a form of JSON data, but it's safe enough\n // to assume they're plain strings.\n if (typeof this.body === 'string') {\n return 'text/plain';\n }\n // `HttpUrlEncodedParams` has its own content-type.\n if (this.body instanceof HttpParams) {\n return 'application/x-www-form-urlencoded;charset=UTF-8';\n }\n // Arrays, objects, boolean and numbers will be encoded as JSON.\n if (typeof this.body === 'object' || typeof this.body === 'number' ||\n typeof this.body === 'boolean') {\n return 'application/json';\n }\n // No type could be inferred.\n return null;\n }\n clone(update = {}) {\n var _a;\n // For method, url, and responseType, take the current value unless\n // it is overridden in the update hash.\n const method = update.method || this.method;\n const url = update.url || this.url;\n const responseType = update.responseType || this.responseType;\n // The body is somewhat special - a `null` value in update.body means\n // whatever current body is present is being overridden with an empty\n // body, whereas an `undefined` value in update.body implies no\n // override.\n const body = (update.body !== undefined) ? update.body : this.body;\n // Carefully handle the boolean options to differentiate between\n // `false` and `undefined` in the update args.\n const withCredentials = (update.withCredentials !== undefined) ? update.withCredentials : this.withCredentials;\n const reportProgress = (update.reportProgress !== undefined) ? update.reportProgress : this.reportProgress;\n // Headers and params may be appended to if `setHeaders` or\n // `setParams` are used.\n let headers = update.headers || this.headers;\n let params = update.params || this.params;\n // Pass on context if needed\n const context = (_a = update.context) !== null && _a !== void 0 ? _a : this.context;\n // Check whether the caller has asked to add headers.\n if (update.setHeaders !== undefined) {\n // Set every requested header.\n headers =\n Object.keys(update.setHeaders)\n .reduce((headers, name) => headers.set(name, update.setHeaders[name]), headers);\n }\n // Check whether the caller has asked to set params.\n if (update.setParams) {\n // Set every requested param.\n params = Object.keys(update.setParams)\n .reduce((params, param) => params.set(param, update.setParams[param]), params);\n }\n // Finally, construct the new HttpRequest using the pieces from above.\n return new HttpRequest(method, url, body, {\n params,\n headers,\n context,\n reportProgress,\n responseType,\n withCredentials,\n });\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Type enumeration for the different kinds of `HttpEvent`.\n *\n * @publicApi\n */\nvar HttpEventType;\n(function (HttpEventType) {\n /**\n * The request was sent out over the wire.\n */\n HttpEventType[HttpEventType[\"Sent\"] = 0] = \"Sent\";\n /**\n * An upload progress event was received.\n */\n HttpEventType[HttpEventType[\"UploadProgress\"] = 1] = \"UploadProgress\";\n /**\n * The response status code and headers were received.\n */\n HttpEventType[HttpEventType[\"ResponseHeader\"] = 2] = \"ResponseHeader\";\n /**\n * A download progress event was received.\n */\n HttpEventType[HttpEventType[\"DownloadProgress\"] = 3] = \"DownloadProgress\";\n /**\n * The full response including the body was received.\n */\n HttpEventType[HttpEventType[\"Response\"] = 4] = \"Response\";\n /**\n * A custom event from an interceptor or a backend.\n */\n HttpEventType[HttpEventType[\"User\"] = 5] = \"User\";\n})(HttpEventType || (HttpEventType = {}));\n/**\n * Base class for both `HttpResponse` and `HttpHeaderResponse`.\n *\n * @publicApi\n */\nclass HttpResponseBase {\n /**\n * Super-constructor for all responses.\n *\n * The single parameter accepted is an initialization hash. Any properties\n * of the response passed there will override the default values.\n */\n constructor(init, defaultStatus = 200 /* Ok */, defaultStatusText = 'OK') {\n // If the hash has values passed, use them to initialize the response.\n // Otherwise use the default values.\n this.headers = init.headers || new HttpHeaders();\n this.status = init.status !== undefined ? init.status : defaultStatus;\n this.statusText = init.statusText || defaultStatusText;\n this.url = init.url || null;\n // Cache the ok value to avoid defining a getter.\n this.ok = this.status >= 200 && this.status < 300;\n }\n}\n/**\n * A partial HTTP response which only includes the status and header data,\n * but no response body.\n *\n * `HttpHeaderResponse` is a `HttpEvent` available on the response\n * event stream, only when progress events are requested.\n *\n * @publicApi\n */\nclass HttpHeaderResponse extends HttpResponseBase {\n /**\n * Create a new `HttpHeaderResponse` with the given parameters.\n */\n constructor(init = {}) {\n super(init);\n this.type = HttpEventType.ResponseHeader;\n }\n /**\n * Copy this `HttpHeaderResponse`, overriding its contents with the\n * given parameter hash.\n */\n clone(update = {}) {\n // Perform a straightforward initialization of the new HttpHeaderResponse,\n // overriding the current parameters with new ones if given.\n return new HttpHeaderResponse({\n headers: update.headers || this.headers,\n status: update.status !== undefined ? update.status : this.status,\n statusText: update.statusText || this.statusText,\n url: update.url || this.url || undefined,\n });\n }\n}\n/**\n * A full HTTP response, including a typed response body (which may be `null`\n * if one was not returned).\n *\n * `HttpResponse` is a `HttpEvent` available on the response event\n * stream.\n *\n * @publicApi\n */\nclass HttpResponse extends HttpResponseBase {\n /**\n * Construct a new `HttpResponse`.\n */\n constructor(init = {}) {\n super(init);\n this.type = HttpEventType.Response;\n this.body = init.body !== undefined ? init.body : null;\n }\n clone(update = {}) {\n return new HttpResponse({\n body: (update.body !== undefined) ? update.body : this.body,\n headers: update.headers || this.headers,\n status: (update.status !== undefined) ? update.status : this.status,\n statusText: update.statusText || this.statusText,\n url: update.url || this.url || undefined,\n });\n }\n}\n/**\n * A response that represents an error or failure, either from a\n * non-successful HTTP status, an error while executing the request,\n * or some other failure which occurred during the parsing of the response.\n *\n * Any error returned on the `Observable` response stream will be\n * wrapped in an `HttpErrorResponse` to provide additional context about\n * the state of the HTTP layer when the error occurred. The error property\n * will contain either a wrapped Error object or the error response returned\n * from the server.\n *\n * @publicApi\n */\nclass HttpErrorResponse extends HttpResponseBase {\n constructor(init) {\n // Initialize with a default status of 0 / Unknown Error.\n super(init, 0, 'Unknown Error');\n this.name = 'HttpErrorResponse';\n /**\n * Errors are never okay, even when the status code is in the 2xx success range.\n */\n this.ok = false;\n // If the response was successful, then this was a parse error. Otherwise, it was\n // a protocol-level failure of some sort. Either the request failed in transit\n // or the server returned an unsuccessful status code.\n if (this.status >= 200 && this.status < 300) {\n this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;\n }\n else {\n this.message = `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;\n }\n this.error = init.error || null;\n }\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Constructs an instance of `HttpRequestOptions` from a source `HttpMethodOptions` and\n * the given `body`. This function clones the object and adds the body.\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n *\n */\nfunction addBody(options, body) {\n return {\n body,\n headers: options.headers,\n context: options.context,\n observe: options.observe,\n params: options.params,\n reportProgress: options.reportProgress,\n responseType: options.responseType,\n withCredentials: options.withCredentials,\n };\n}\n/**\n * Performs HTTP requests.\n * This service is available as an injectable class, with methods to perform HTTP requests.\n * Each request method has multiple signatures, and the return type varies based on\n * the signature that is called (mainly the values of `observe` and `responseType`).\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n\n *\n * @usageNotes\n * Sample HTTP requests for the [Tour of Heroes](/tutorial/toh-pt0) application.\n *\n * ### HTTP Request Example\n *\n * ```\n * // GET heroes whose name contains search term\n * searchHeroes(term: string): observable{\n *\n * const params = new HttpParams({fromString: 'name=term'});\n * return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});\n * }\n * ```\n *\n * Alternatively, the parameter string can be used without invoking HttpParams\n * by directly joining to the URL.\n * ```\n * this.httpClient.request('GET', this.heroesUrl + '?' + 'name=term', {responseType:'json'});\n * ```\n *\n *\n * ### JSONP Example\n * ```\n * requestJsonp(url, callback = 'callback') {\n * return this.httpClient.jsonp(this.heroesURL, callback);\n * }\n * ```\n *\n * ### PATCH Example\n * ```\n * // PATCH one of the heroes' name\n * patchHero (id: number, heroName: string): Observable<{}> {\n * const url = `${this.heroesUrl}/${id}`; // PATCH api/heroes/42\n * return this.httpClient.patch(url, {name: heroName}, httpOptions)\n * .pipe(catchError(this.handleError('patchHero')));\n * }\n * ```\n *\n * @see [HTTP Guide](guide/http)\n * @see [HTTP Request](api/common/http/HttpRequest)\n *\n * @publicApi\n */\nclass HttpClient {\n constructor(handler) {\n this.handler = handler;\n }\n /**\n * Constructs an observable for a generic HTTP request that, when subscribed,\n * fires the request through the chain of registered interceptors and on to the\n * server.\n *\n * You can pass an `HttpRequest` directly as the only parameter. In this case,\n * the call returns an observable of the raw `HttpEvent` stream.\n *\n * Alternatively you can pass an HTTP method as the first parameter,\n * a URL string as the second, and an options hash containing the request body as the third.\n * See `addBody()`. In this case, the specified `responseType` and `observe` options determine the\n * type of returned observable.\n * * The `responseType` value determines how a successful response body is parsed.\n * * If `responseType` is the default `json`, you can pass a type interface for the resulting\n * object as a type parameter to the call.\n *\n * The `observe` value determines the return type, according to what you are interested in\n * observing.\n * * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including\n * progress events by default.\n * * An `observe` value of response returns an observable of `HttpResponse`,\n * where the `T` parameter depends on the `responseType` and any optionally provided type\n * parameter.\n * * An `observe` value of body returns an observable of `` with the same `T` body type.\n *\n */\n request(first, url, options = {}) {\n let req;\n // First, check whether the primary argument is an instance of `HttpRequest`.\n if (first instanceof HttpRequest) {\n // It is. The other arguments must be undefined (per the signatures) and can be\n // ignored.\n req = first;\n }\n else {\n // It's a string, so it represents a URL. Construct a request based on it,\n // and incorporate the remaining arguments (assuming `GET` unless a method is\n // provided.\n // Figure out the headers.\n let headers = undefined;\n if (options.headers instanceof HttpHeaders) {\n headers = options.headers;\n }\n else {\n headers = new HttpHeaders(options.headers);\n }\n // Sort out parameters.\n let params = undefined;\n if (!!options.params) {\n if (options.params instanceof HttpParams) {\n params = options.params;\n }\n else {\n params = new HttpParams({ fromObject: options.params });\n }\n }\n // Construct the request.\n req = new HttpRequest(first, url, (options.body !== undefined ? options.body : null), {\n headers,\n context: options.context,\n params,\n reportProgress: options.reportProgress,\n // By default, JSON is assumed to be returned for all calls.\n responseType: options.responseType || 'json',\n withCredentials: options.withCredentials,\n });\n }\n // Start with an Observable.of() the initial request, and run the handler (which\n // includes all interceptors) inside a concatMap(). This way, the handler runs\n // inside an Observable chain, which causes interceptors to be re-run on every\n // subscription (this also makes retries re-run the handler, including interceptors).\n const events$ = of(req).pipe(concatMap((req) => this.handler.handle(req)));\n // If coming via the API signature which accepts a previously constructed HttpRequest,\n // the only option is to get the event stream. Otherwise, return the event stream if\n // that is what was requested.\n if (first instanceof HttpRequest || options.observe === 'events') {\n return events$;\n }\n // The requested stream contains either the full response or the body. In either\n // case, the first step is to filter the event stream to extract a stream of\n // responses(s).\n const res$ = events$.pipe(filter((event) => event instanceof HttpResponse));\n // Decide which stream to return.\n switch (options.observe || 'body') {\n case 'body':\n // The requested stream is the body. Map the response stream to the response\n // body. This could be done more simply, but a misbehaving interceptor might\n // transform the response body into a different format and ignore the requested\n // responseType. Guard against this by validating that the response is of the\n // requested type.\n switch (req.responseType) {\n case 'arraybuffer':\n return res$.pipe(map((res) => {\n // Validate that the body is an ArrayBuffer.\n if (res.body !== null && !(res.body instanceof ArrayBuffer)) {\n throw new Error('Response is not an ArrayBuffer.');\n }\n return res.body;\n }));\n case 'blob':\n return res$.pipe(map((res) => {\n // Validate that the body is a Blob.\n if (res.body !== null && !(res.body instanceof Blob)) {\n throw new Error('Response is not a Blob.');\n }\n return res.body;\n }));\n case 'text':\n return res$.pipe(map((res) => {\n // Validate that the body is a string.\n if (res.body !== null && typeof res.body !== 'string') {\n throw new Error('Response is not a string.');\n }\n return res.body;\n }));\n case 'json':\n default:\n // No validation needed for JSON responses, as they can be of any type.\n return res$.pipe(map((res) => res.body));\n }\n case 'response':\n // The response stream was requested directly, so return it.\n return res$;\n default:\n // Guard against new future observe types being added.\n throw new Error(`Unreachable: unhandled observe type ${options.observe}}`);\n }\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `DELETE` request to execute on the server. See the individual overloads for\n * details on the return type.\n *\n * @param url The endpoint URL.\n * @param options The HTTP options to send with the request.\n *\n */\n delete(url, options = {}) {\n return this.request('DELETE', url, options);\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `GET` request to execute on the server. See the individual overloads for\n * details on the return type.\n */\n get(url, options = {}) {\n return this.request('GET', url, options);\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `HEAD` request to execute on the server. The `HEAD` method returns\n * meta information about the resource without transferring the\n * resource itself. See the individual overloads for\n * details on the return type.\n */\n head(url, options = {}) {\n return this.request('HEAD', url, options);\n }\n /**\n * Constructs an `Observable` that, when subscribed, causes a request with the special method\n * `JSONP` to be dispatched via the interceptor pipeline.\n * The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain\n * API endpoints that don't support newer,\n * and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.\n * JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the\n * requests even if the API endpoint is not located on the same domain (origin) as the client-side\n * application making the request.\n * The endpoint API must support JSONP callback for JSONP requests to work.\n * The resource API returns the JSON response wrapped in a callback function.\n * You can pass the callback function name as one of the query parameters.\n * Note that JSONP requests can only be used with `GET` requests.\n *\n * @param url The resource URL.\n * @param callbackParam The callback function name.\n *\n */\n jsonp(url, callbackParam) {\n return this.request('JSONP', url, {\n params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),\n observe: 'body',\n responseType: 'json',\n });\n }\n /**\n * Constructs an `Observable` that, when subscribed, causes the configured\n * `OPTIONS` request to execute on the server. This method allows the client\n * to determine the supported HTTP methods and other capabilities of an endpoint,\n * without implying a resource action. See the individual overloads for\n * details on the return type.\n */\n options(url, options = {}) {\n return this.request('OPTIONS', url, options);\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `PATCH` request to execute on the server. See the individual overloads for\n * details on the return type.\n */\n patch(url, body, options = {}) {\n return this.request('PATCH', url, addBody(options, body));\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `POST` request to execute on the server. The server responds with the location of\n * the replaced resource. See the individual overloads for\n * details on the return type.\n */\n post(url, body, options = {}) {\n return this.request('POST', url, addBody(options, body));\n }\n /**\n * Constructs an observable that, when subscribed, causes the configured\n * `PUT` request to execute on the server. The `PUT` method replaces an existing resource\n * with a new set of values.\n * See the individual overloads for details on the return type.\n */\n put(url, body, options = {}) {\n return this.request('PUT', url, addBody(options, body));\n }\n}\nHttpClient.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HttpClient, deps: [{ token: HttpHandler }], target: i0.ɵɵFactoryTarget.Injectable });\nHttpClient.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HttpClient });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: HttpClient, decorators: [{\n type: Injectable\n }], ctorParameters: function () { return [{ type: HttpHandler }]; } });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * `HttpHandler` which applies an `HttpInterceptor` to an `HttpRequest`.\n *\n *\n */\nclass HttpInterceptorHandler {\n constructor(next, interceptor) {\n this.next = next;\n this.interceptor = interceptor;\n }\n handle(req) {\n return this.interceptor.intercept(req, this.next);\n }\n}\n/**\n * A multi-provider token that represents the array of registered\n * `HttpInterceptor` objects.\n *\n * @publicApi\n */\nconst HTTP_INTERCEPTORS = new InjectionToken('HTTP_INTERCEPTORS');\nclass NoopInterceptor {\n intercept(req, next) {\n return next.handle(req);\n }\n}\nNoopInterceptor.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NoopInterceptor, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\nNoopInterceptor.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NoopInterceptor });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"13.2.6\", ngImport: i0, type: NoopInterceptor, decorators: [{\n type: Injectable\n }] });\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Every request made through JSONP needs a callback name that's unique across the\n// whole page. Each request is assigned an id and the callback name is constructed\n// from that. The next id to be assigned is tracked in a global variable here that\n// is shared among all applications on the page.\nlet nextRequestId = 0;\n/**\n * When a pending