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- import { OperatorFunction, ObservableInput, ObservedValueOf } from '../types';
- /**
- * Converts a higher-order Observable into a first-order Observable which
- * concurrently delivers all values that are emitted on the inner Observables.
- *
- * <span class="informal">Flattens an Observable-of-Observables.</span>
- *
- * 
- *
- * `mergeAll` subscribes to an Observable that emits Observables, also known as
- * a higher-order Observable. Each time it observes one of these emitted inner
- * Observables, it subscribes to that and delivers all the values from the
- * inner Observable on the output Observable. The output Observable only
- * completes once all inner Observables have completed. Any error delivered by
- * a inner Observable will be immediately emitted on the output Observable.
- *
- * ## Examples
- *
- * Spawn a new interval Observable for each click event, and blend their outputs as one Observable
- *
- * ```ts
- * import { fromEvent, map, interval, mergeAll } from 'rxjs';
- *
- * const clicks = fromEvent(document, 'click');
- * const higherOrder = clicks.pipe(map(() => interval(1000)));
- * const firstOrder = higherOrder.pipe(mergeAll());
- *
- * firstOrder.subscribe(x => console.log(x));
- * ```
- *
- * Count from 0 to 9 every second for each click, but only allow 2 concurrent timers
- *
- * ```ts
- * import { fromEvent, map, interval, take, mergeAll } from 'rxjs';
- *
- * const clicks = fromEvent(document, 'click');
- * const higherOrder = clicks.pipe(
- * map(() => interval(1000).pipe(take(10)))
- * );
- * const firstOrder = higherOrder.pipe(mergeAll(2));
- *
- * firstOrder.subscribe(x => console.log(x));
- * ```
- *
- * @see {@link combineLatestAll}
- * @see {@link concatAll}
- * @see {@link exhaustAll}
- * @see {@link merge}
- * @see {@link mergeMap}
- * @see {@link mergeMapTo}
- * @see {@link mergeScan}
- * @see {@link switchAll}
- * @see {@link switchMap}
- * @see {@link zipAll}
- *
- * @param concurrent Maximum number of inner Observables being subscribed to
- * concurrently.
- * @return A function that returns an Observable that emits values coming from
- * all the inner Observables emitted by the source Observable.
- */
- export declare function mergeAll<O extends ObservableInput<any>>(concurrent?: number): OperatorFunction<O, ObservedValueOf<O>>;
- //# sourceMappingURL=mergeAll.d.ts.map
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