49 lines
2.2 KiB
JavaScript
49 lines
2.2 KiB
JavaScript
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import { async } from '../scheduler/async';
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import { audit } from './audit';
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import { timer } from '../observable/timer';
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/**
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* Ignores source values for `duration` milliseconds, then emits the most recent
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* value from the source Observable, then repeats this process.
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*
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* <span class="informal">When it sees a source values, it ignores that plus
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* the next ones for `duration` milliseconds, and then it emits the most recent
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* value from the source.</span>
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*
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* <img src="./img/auditTime.png" width="100%">
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*
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* `auditTime` is similar to `throttleTime`, but emits the last value from the
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* silenced time window, instead of the first value. `auditTime` emits the most
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* recent value from the source Observable on the output Observable as soon as
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* its internal timer becomes disabled, and ignores source values while the
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* timer is enabled. Initially, the timer is disabled. As soon as the first
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* source value arrives, the timer is enabled. After `duration` milliseconds (or
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* the time unit determined internally by the optional `scheduler`) has passed,
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* the timer is disabled, then the most recent source value is emitted on the
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* output Observable, and this process repeats for the next source value.
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* Optionally takes a {@link IScheduler} for managing timers.
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*
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* @example <caption>Emit clicks at a rate of at most one click per second</caption>
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* var clicks = Rx.Observable.fromEvent(document, 'click');
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* var result = clicks.auditTime(1000);
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* result.subscribe(x => console.log(x));
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*
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* @see {@link audit}
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* @see {@link debounceTime}
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* @see {@link delay}
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* @see {@link sampleTime}
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* @see {@link throttleTime}
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*
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* @param {number} duration Time to wait before emitting the most recent source
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* value, measured in milliseconds or the time unit determined internally
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* by the optional `scheduler`.
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* @param {Scheduler} [scheduler=async] The {@link IScheduler} to use for
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* managing the timers that handle the rate-limiting behavior.
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* @return {Observable<T>} An Observable that performs rate-limiting of
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* emissions from the source Observable.
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* @method auditTime
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* @owner Observable
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*/
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export function auditTime(duration, scheduler = async) {
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return audit(() => timer(duration, scheduler));
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}
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//# sourceMappingURL=auditTime.js.map
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