Last change
on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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File size:
1.1 KB
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[6a3a178] | 1 | import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
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| 2 | export function sample(notifier) {
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| 3 | return (source) => source.lift(new SampleOperator(notifier));
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| 4 | }
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| 5 | class SampleOperator {
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| 6 | constructor(notifier) {
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| 7 | this.notifier = notifier;
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| 8 | }
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| 9 | call(subscriber, source) {
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| 10 | const sampleSubscriber = new SampleSubscriber(subscriber);
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| 11 | const subscription = source.subscribe(sampleSubscriber);
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| 12 | subscription.add(innerSubscribe(this.notifier, new SimpleInnerSubscriber(sampleSubscriber)));
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| 13 | return subscription;
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| 14 | }
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| 15 | }
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| 16 | class SampleSubscriber extends SimpleOuterSubscriber {
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| 17 | constructor() {
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| 18 | super(...arguments);
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| 19 | this.hasValue = false;
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| 20 | }
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| 21 | _next(value) {
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| 22 | this.value = value;
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| 23 | this.hasValue = true;
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| 24 | }
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| 25 | notifyNext() {
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| 26 | this.emitValue();
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| 27 | }
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| 28 | notifyComplete() {
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| 29 | this.emitValue();
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| 30 | }
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| 31 | emitValue() {
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| 32 | if (this.hasValue) {
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| 33 | this.hasValue = false;
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| 34 | this.destination.next(this.value);
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| 35 | }
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| 36 | }
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| 37 | }
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| 38 | //# sourceMappingURL=sample.js.map |
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