shell bypass 403
import { Observable } from '../Observable';
import { takeUntil as higherOrder } from '../operators/takeUntil';
/**
* Emits the values emitted by the source Observable until a `notifier`
* Observable emits a value.
*
* <span class="informal">Lets values pass until a second Observable,
* `notifier`, emits something. Then, it completes.</span>
*
* <img src="./img/takeUntil.png" width="100%">
*
* `takeUntil` subscribes and begins mirroring the source Observable. It also
* monitors a second Observable, `notifier` that you provide. If the `notifier`
* emits a value, the output Observable stops mirroring the source Observable
* and completes.
*
* @example <caption>Tick every second until the first click happens</caption>
* var interval = Rx.Observable.interval(1000);
* var clicks = Rx.Observable.fromEvent(document, 'click');
* var result = interval.takeUntil(clicks);
* result.subscribe(x => console.log(x));
*
* @see {@link take}
* @see {@link takeLast}
* @see {@link takeWhile}
* @see {@link skip}
*
* @param {Observable} notifier The Observable whose first emitted value will
* cause the output Observable of `takeUntil` to stop emitting values from the
* source Observable.
* @return {Observable<T>} An Observable that emits the values from the source
* Observable until such time as `notifier` emits its first value.
* @method takeUntil
* @owner Observable
*/
export function takeUntil<T>(this: Observable<T>, notifier: Observable<any>): Observable<T> {
return higherOrder(notifier)(this) as Observable<T>;
}