@reactivex/rxjs

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class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">import { tryCatch } from '../util/tryCatch'; import { errorObject } from '../util/errorObject'; import { OuterSubscriber } from '../OuterSubscriber'; import { subscribeToResult } from '../util/subscribeToResult'; /** * Ignores source values for a duration determined by another Observable, then * emits the most recent value from the source Observable, then repeats this * process. * * <span class="informal">It's like {@link auditTime}, but the silencing * duration is determined by a second Observable.</span> * * <img src="./img/audit.png" width="100%"> * * `audit` is similar to `throttle`, but emits the last value from the silenced * time window, instead of the first value. `audit` emits the most recent value * from the source Observable on the output Observable as soon as its internal * timer becomes disabled, and ignores source values while the timer is enabled. * Initially, the timer is disabled. As soon as the first source value arrives, * the timer is enabled by calling the `durationSelector` function with the * source value, which returns the "duration" Observable. When the duration * Observable emits a value or completes, the timer is disabled, then the most * recent source value is emitted on the output Observable, and this process * repeats for the next source value. * * @example <caption>Emit clicks at a rate of at most one click per second</caption> * var clicks = Rx.Observable.fromEvent(document, 'click'); * var result = clicks.audit(ev => Rx.Observable.interval(1000)); * result.subscribe(x => console.log(x)); * * @see {@link auditTime} * @see {@link debounce} * @see {@link delayWhen} * @see {@link sample} * @see {@link throttle} * * @param {function(value: T): Observable|Promise} durationSelector A function * that receives a value from the source Observable, for computing the silencing * duration, returned as an Observable or a Promise. * @return {Observable<T>} An Observable that performs rate-limiting of * emissions from the source Observable. * @method audit * @owner Observable */ export function audit(durationSelector) { return this.lift(new AuditOperator(durationSelector)); } var AuditOperator = (function () { function AuditOperator(durationSelector) { this.durationSelector = durationSelector; } AuditOperator.prototype.call = function (subscriber, source) { return source._subscribe(new AuditSubscriber(subscriber, this.durationSelector)); }; return AuditOperator; }()); /** * We need this JSDoc comment for affecting ESDoc. * @ignore * @extends {Ignored} */ var AuditSubscriber = (function (_super) { __extends(AuditSubscriber, _super); function AuditSubscriber(destination, durationSelector) { _super.call(this, destination); this.durationSelector = durationSelector; this.hasValue = false; } AuditSubscriber.prototype._next = function (value) { this.value = value; this.hasValue = true; if (!this.throttled) { var duration = tryCatch(this.durationSelector)(value); if (duration === errorObject) { this.destination.error(errorObject.e); } else { this.add(this.throttled = subscribeToResult(this, duration)); } } }; AuditSubscriber.prototype.clearThrottle = function () { var _a = this, value = _a.value, hasValue = _a.hasValue, throttled = _a.throttled; if (throttled) { this.remove(throttled); this.throttled = null; throttled.unsubscribe(); } if (hasValue) { this.value = null; this.hasValue = false; this.destination.next(value); } }; AuditSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex) { this.clearThrottle(); }; AuditSubscriber.prototype.notifyComplete = function () { this.clearThrottle(); }; return AuditSubscriber; }(OuterSubscriber)); //# sourceMappingURL=audit.js.map</code></pre> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc<span data-ice="esdocVersion">(0.4.8)</span></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> <script src="script/inner-link.js"></script> <script src="script/patch-for-local.js"></script> </body> </html>