update

node_modules/rxjs/operator/windowToggle.d.ts

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+import { Observable } from '../Observable';
+/**
+ * Branch out the source Observable values as a nested Observable starting from
+ * an emission from `openings` and ending when the output of `closingSelector`
+ * emits.
+ *
+ * <span class="informal">It's like {@link bufferToggle}, but emits a nested
+ * Observable instead of an array.</span>
+ *
+ * <img src="./img/windowToggle.png" width="100%">
+ *
+ * Returns an Observable that emits windows of items it collects from the source
+ * Observable. The output Observable emits windows that contain those items
+ * emitted by the source Observable between the time when the `openings`
+ * Observable emits an item and when the Observable returned by
+ * `closingSelector` emits an item.
+ *
+ * @example <caption>Every other second, emit the click events from the next 500ms</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var openings = Rx.Observable.interval(1000);
+ * var result = clicks.windowToggle(openings, i =>
+ *   i % 2 ? Rx.Observable.interval(500) : Rx.Observable.empty()
+ * ).mergeAll();
+ * result.subscribe(x => console.log(x));
+ *
+ * @see {@link window}
+ * @see {@link windowCount}
+ * @see {@link windowTime}
+ * @see {@link windowWhen}
+ * @see {@link bufferToggle}
+ *
+ * @param {Observable<O>} openings An observable of notifications to start new
+ * windows.
+ * @param {function(value: O): Observable} closingSelector A function that takes
+ * the value emitted by the `openings` observable and returns an Observable,
+ * which, when it emits (either `next` or `complete`), signals that the
+ * associated window should complete.
+ * @return {Observable<Observable<T>>} An observable of windows, which in turn
+ * are Observables.
+ * @method windowToggle
+ * @owner Observable
+ */
+export declare function windowToggle<T, O>(this: Observable<T>, openings: Observable<O>, closingSelector: (openValue: O) => Observable<any>): Observable<Observable<T>>;