Ohm-Management - Projektarbeit B-ME
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repeatWhen.d.ts 1.4KB

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  1. import { Observable } from '../Observable';
  2. import { MonoTypeOperatorFunction } from '../types';
  3. /**
  4. * Returns an Observable that mirrors the source Observable with the exception of a `complete`. If the source
  5. * Observable calls `complete`, this method will emit to the Observable returned from `notifier`. If that Observable
  6. * calls `complete` or `error`, then this method will call `complete` or `error` on the child subscription. Otherwise
  7. * this method will resubscribe to the source Observable.
  8. *
  9. * ![](repeatWhen.png)
  10. *
  11. * ## Example
  12. * Repeat a message stream on click
  13. * ```ts
  14. * import { of, fromEvent } from 'rxjs';
  15. * import { repeatWhen } from 'rxjs/operators';
  16. *
  17. * const source = of('Repeat message');
  18. * const documentClick$ = fromEvent(document, 'click');
  19. *
  20. * source.pipe(repeatWhen(() => documentClick$)
  21. * ).subscribe(data => console.log(data))
  22. * ```
  23. * @see {@link repeat}
  24. * @see {@link retry}
  25. * @see {@link retryWhen}
  26. *
  27. * @param {function(notifications: Observable): Observable} notifier - Receives an Observable of notifications with
  28. * which a user can `complete` or `error`, aborting the repetition.
  29. * @return {Observable} The source Observable modified with repeat logic.
  30. * @method repeatWhen
  31. * @owner Observable
  32. */
  33. export declare function repeatWhen<T>(notifier: (notifications: Observable<any>) => Observable<any>): MonoTypeOperatorFunction<T>;