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import { Subscriber } from '../Subscriber'; import { async } from '../scheduler/async'; export function debounceTime(dueTime, scheduler = async) { return (source) => source.lift(new DebounceTimeOperator(dueTime, scheduler)); } class DebounceTimeOperator { constructor(dueTime, scheduler) { this.dueTime = dueTime; this.scheduler = scheduler; } call(subscriber, source) { return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler)); } } class DebounceTimeSubscriber extends Subscriber { constructor(destination, dueTime, scheduler) { super(destination); this.dueTime = dueTime; this.scheduler = scheduler; this.debouncedSubscription = null; this.lastValue = null; this.hasValue = false; } _next(value) { this.clearDebounce(); this.lastValue = value; this.hasValue = true; this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this)); } _complete() { this.debouncedNext(); this.destination.complete(); } debouncedNext() { this.clearDebounce(); if (this.hasValue) { const { lastValue } = this; this.lastValue = null; this.hasValue = false; this.destination.next(lastValue); } } clearDebounce() { const debouncedSubscription = this.debouncedSubscription; if (debouncedSubscription !== null) { this.remove(debouncedSubscription); debouncedSubscription.unsubscribe(); this.debouncedSubscription = null; } } } function dispatchNext(subscriber) { subscriber.debouncedNext(); } //# sourceMappingURL=debounceTime.js.map