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- import { Observable } from '../Observable';
- /**
- * Branch out the source Observable values as a nested Observable whenever
- * `windowBoundaries` emits.
- *
- * <span class="informal">It's like {@link buffer}, but emits a nested Observable
- * instead of an array.</span>
- *
- * <img src="./img/window.png" width="100%">
- *
- * Returns an Observable that emits windows of items it collects from the source
- * Observable. The output Observable emits connected, non-overlapping
- * windows. It emits the current window and opens a new one whenever the
- * Observable `windowBoundaries` emits an item. Because each window is an
- * Observable, the output is a higher-order Observable.
- *
- * @example <caption>In every window of 1 second each, emit at most 2 click events</caption>
- * var clicks = Rx.Observable.fromEvent(document, 'click');
- * var interval = Rx.Observable.interval(1000);
- * var result = clicks.window(interval)
- * .map(win => win.take(2)) // each window has at most 2 emissions
- * .mergeAll(); // flatten the Observable-of-Observables
- * result.subscribe(x => console.log(x));
- *
- * @see {@link windowCount}
- * @see {@link windowTime}
- * @see {@link windowToggle}
- * @see {@link windowWhen}
- * @see {@link buffer}
- *
- * @param {Observable<any>} windowBoundaries An Observable that completes the
- * previous window and starts a new window.
- * @return {Observable<Observable<T>>} An Observable of windows, which are
- * Observables emitting values of the source Observable.
- * @method window
- * @owner Observable
- */
- export declare function window<T>(this: Observable<T>, windowBoundaries: Observable<any>): Observable<Observable<T>>;
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