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- import { sample as higherOrder } from '../operators/sample';
- /**
- * Emits the most recently emitted value from the source Observable whenever
- * another Observable, the `notifier`, emits.
- *
- * <span class="informal">It's like {@link sampleTime}, but samples whenever
- * the `notifier` Observable emits something.</span>
- *
- * <img src="./img/sample.png" width="100%">
- *
- * Whenever the `notifier` Observable emits a value or completes, `sample`
- * looks at the source Observable and emits whichever value it has most recently
- * emitted since the previous sampling, unless the source has not emitted
- * anything since the previous sampling. The `notifier` is subscribed to as soon
- * as the output Observable is subscribed.
- *
- * @example <caption>On every click, sample the most recent "seconds" timer</caption>
- * var seconds = Rx.Observable.interval(1000);
- * var clicks = Rx.Observable.fromEvent(document, 'click');
- * var result = seconds.sample(clicks);
- * result.subscribe(x => console.log(x));
- *
- * @see {@link audit}
- * @see {@link debounce}
- * @see {@link sampleTime}
- * @see {@link throttle}
- *
- * @param {Observable<any>} notifier The Observable to use for sampling the
- * source Observable.
- * @return {Observable<T>} An Observable that emits the results of sampling the
- * values emitted by the source Observable whenever the notifier Observable
- * emits value or completes.
- * @method sample
- * @owner Observable
- */
- export function sample(notifier) {
- return higherOrder(notifier)(this);
- }
- //# sourceMappingURL=sample.js.map
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