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web-form-project/node_modules/rxjs/src/internal/BehaviorSubject.ts
37 строк
880 B
AKorostelev
web form project added
28 июл 2026, 10:57
28 июл 2026, 10:57
4339e77
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import { Subject } from './Subject'; import { Subscriber } from './Subscriber'; import { Subscription } from './Subscription'; /** * A variant of Subject that requires an initial value and emits its current * value whenever it is subscribed to. */ export class BehaviorSubject<T> extends Subject<T> { constructor(private _value: T) { super(); } get value(): T { return this.getValue(); } /** @internal */ protected _subscribe(subscriber: Subscriber<T>): Subscription { const subscription = super._subscribe(subscriber); !subscription.closed && subscriber.next(this._value); return subscription; } getValue(): T { const { hasError, thrownError, _value } = this; if (hasError) { throw thrownError; } this._throwIfClosed(); return _value; } next(value: T): void { super.next((this._value = value)); } }