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19 lines
1.1 KiB
19 lines
1.1 KiB
2 years ago
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import { Observable } from '../Observable';
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/**
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* Returns a new Observable that multicasts (shares) the original Observable. As long as there is at least one
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* Subscriber this Observable will be subscribed and emitting data. When all subscribers have unsubscribed it will
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* unsubscribe from the source Observable. Because the Observable is multicasting it makes the stream `hot`.
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*
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* This behaves similarly to .publish().refCount(), with a behavior difference when the source observable emits complete.
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* .publish().refCount() will not resubscribe to the original source, however .share() will resubscribe to the original source.
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* Observable.of("test").publish().refCount() will not re-emit "test" on new subscriptions, Observable.of("test").share() will
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* re-emit "test" to new subscriptions.
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*
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* <img src="./img/share.png" width="100%">
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*
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* @return {Observable<T>} An Observable that upon connection causes the source Observable to emit items to its Observers.
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* @method share
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* @owner Observable
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*/
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export declare function share<T>(this: Observable<T>): Observable<T>;
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