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41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import { Subscriber } from '../Subscriber';
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/**
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* Returns an Observable that skips the first `count` items emitted by the source Observable.
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*
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* <img src="./img/skip.png" width="100%">
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*
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* @param {Number} count - The number of times, items emitted by source Observable should be skipped.
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* @return {Observable} An Observable that skips values emitted by the source Observable.
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*
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* @method skip
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* @owner Observable
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*/
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export function skip(count) {
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return (source) => source.lift(new SkipOperator(count));
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}
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class SkipOperator {
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constructor(total) {
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this.total = total;
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}
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call(subscriber, source) {
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return source.subscribe(new SkipSubscriber(subscriber, this.total));
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}
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}
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/**
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* We need this JSDoc comment for affecting ESDoc.
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* @ignore
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* @extends {Ignored}
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*/
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class SkipSubscriber extends Subscriber {
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constructor(destination, total) {
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super(destination);
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this.total = total;
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this.count = 0;
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}
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_next(x) {
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if (++this.count > this.total) {
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this.destination.next(x);
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}
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}
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}
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//# sourceMappingURL=skip.js.map
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