| import { Observable } from '../Observable'; |
| import { MonoTypeOperatorFunction } from '../types'; |
| /** |
| * 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 a value. Then, it completes.</span> |
| * |
| *  |
| * |
| * `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. If the `notifier` doesn't emit any value and completes |
| * then `takeUntil` will pass all values. |
| * |
| * ## Example |
| * Tick every second until the first click happens |
| * ```ts |
| * import { fromEvent, interval } from 'rxjs'; |
| * import { takeUntil } from 'rxjs/operators'; |
| * |
| * const source = interval(1000); |
| * const clicks = fromEvent(document, 'click'); |
| * const result = source.pipe(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 declare function takeUntil<T>(notifier: Observable<any>): MonoTypeOperatorFunction<T>; |
