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1.99 kBTypeScriptView Raw
1import { Observable } from '../Observable';
2import { ObservableInput, OperatorFunction } from '../types';
3/**
4 * Branch out the source Observable values as a nested Observable starting from
5 * an emission from `openings` and ending when the output of `closingSelector`
6 * emits.
7 *
8 * <span class="informal">It's like {@link bufferToggle}, but emits a nested
9 * Observable instead of an array.</span>
10 *
11 * ![](windowToggle.png)
12 *
13 * Returns an Observable that emits windows of items it collects from the source
14 * Observable. The output Observable emits windows that contain those items
15 * emitted by the source Observable between the time when the `openings`
16 * Observable emits an item and when the Observable returned by
17 * `closingSelector` emits an item.
18 *
19 * ## Example
20 *
21 * Every other second, emit the click events from the next 500ms
22 *
23 * ```ts
24 * import { fromEvent, interval, windowToggle, EMPTY, mergeAll } from 'rxjs';
25 *
26 * const clicks = fromEvent(document, 'click');
27 * const openings = interval(1000);
28 * const result = clicks.pipe(
29 * windowToggle(openings, i => i % 2 ? interval(500) : EMPTY),
30 * mergeAll()
31 * );
32 * result.subscribe(x => console.log(x));
33 * ```
34 *
35 * @see {@link window}
36 * @see {@link windowCount}
37 * @see {@link windowTime}
38 * @see {@link windowWhen}
39 * @see {@link bufferToggle}
40 *
41 * @param {Observable<O>} openings An observable of notifications to start new
42 * windows.
43 * @param {function(value: O): Observable} closingSelector A function that takes
44 * the value emitted by the `openings` observable and returns an Observable,
45 * which, when it emits a next notification, signals that the
46 * associated window should complete.
47 * @return A function that returns an Observable of windows, which in turn are
48 * Observables.
49 */
50export declare function windowToggle<T, O>(openings: ObservableInput<O>, closingSelector: (openValue: O) => ObservableInput<any>): OperatorFunction<T, Observable<T>>;
51//# sourceMappingURL=windowToggle.d.ts.map
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