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- import { Observable } from '../Observable';
- /**
- * Branch out the source Observable values as a nested Observable with each
- * nested Observable emitting at most `windowSize` values.
- *
- * <span class="informal">It's like {@link bufferCount}, but emits a nested
- * Observable instead of an array.</span>
- *
- * <img src="./img/windowCount.png" width="100%">
- *
- * Returns an Observable that emits windows of items it collects from the source
- * Observable. The output Observable emits windows every `startWindowEvery`
- * items, each containing no more than `windowSize` items. When the source
- * Observable completes or encounters an error, the output Observable emits
- * the current window and propagates the notification from the source
- * Observable. If `startWindowEvery` is not provided, then new windows are
- * started immediately at the start of the source and when each window completes
- * with size `windowSize`.
- *
- * @example <caption>Ignore every 3rd click event, starting from the first one</caption>
- * var clicks = Rx.Observable.fromEvent(document, 'click');
- * var result = clicks.windowCount(3)
- * .map(win => win.skip(1)) // skip first of every 3 clicks
- * .mergeAll(); // flatten the Observable-of-Observables
- * result.subscribe(x => console.log(x));
- *
- * @example <caption>Ignore every 3rd click event, starting from the third one</caption>
- * var clicks = Rx.Observable.fromEvent(document, 'click');
- * var result = clicks.windowCount(2, 3)
- * .mergeAll(); // flatten the Observable-of-Observables
- * result.subscribe(x => console.log(x));
- *
- * @see {@link window}
- * @see {@link windowTime}
- * @see {@link windowToggle}
- * @see {@link windowWhen}
- * @see {@link bufferCount}
- *
- * @param {number} windowSize The maximum number of values emitted by each
- * window.
- * @param {number} [startWindowEvery] Interval at which to start a new window.
- * For example if `startWindowEvery` is `2`, then a new window will be started
- * on every other value from the source. A new window is started at the
- * beginning of the source by default.
- * @return {Observable<Observable<T>>} An Observable of windows, which in turn
- * are Observable of values.
- * @method windowCount
- * @owner Observable
- */
- export declare function windowCount<T>(this: Observable<T>, windowSize: number, startWindowEvery?: number): Observable<Observable<T>>;
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