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34 lines
1.4 KiB
TypeScript
34 lines
1.4 KiB
TypeScript
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import { Observable } from '../Observable';
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import { MonoTypeOperatorFunction } from '../types';
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/**
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* Returns an Observable that mirrors the source Observable with the exception of a `complete`. If the source
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* Observable calls `complete`, this method will emit to the Observable returned from `notifier`. If that Observable
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* calls `complete` or `error`, then this method will call `complete` or `error` on the child subscription. Otherwise
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* this method will resubscribe to the source Observable.
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*
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* 
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*
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* ## Example
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* Repeat a message stream on click
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* ```ts
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* import { of, fromEvent } from 'rxjs';
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* import { repeatWhen } from 'rxjs/operators';
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*
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* const source = of('Repeat message');
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* const documentClick$ = fromEvent(document, 'click');
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*
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* source.pipe(repeatWhen(() => documentClick$)
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* ).subscribe(data => console.log(data))
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* ```
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* @see {@link repeat}
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* @see {@link retry}
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* @see {@link retryWhen}
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*
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* @param {function(notifications: Observable): Observable} notifier - Receives an Observable of notifications with
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* which a user can `complete` or `error`, aborting the repetition.
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* @return {Observable} The source Observable modified with repeat logic.
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* @method repeatWhen
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* @owner Observable
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*/
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export declare function repeatWhen<T>(notifier: (notifications: Observable<any>) => Observable<any>): MonoTypeOperatorFunction<T>;
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