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 { Subscriber } from '../Subscriber';
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| 2 | export function skipWhile(predicate) {
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| 3 | return (source) => source.lift(new SkipWhileOperator(predicate));
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| 4 | }
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| 5 | class SkipWhileOperator {
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| 6 | constructor(predicate) {
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| 7 | this.predicate = predicate;
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| 8 | }
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| 9 | call(subscriber, source) {
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| 10 | return source.subscribe(new SkipWhileSubscriber(subscriber, this.predicate));
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| 11 | }
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| 12 | }
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| 13 | class SkipWhileSubscriber extends Subscriber {
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| 14 | constructor(destination, predicate) {
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| 15 | super(destination);
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| 16 | this.predicate = predicate;
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| 17 | this.skipping = true;
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| 18 | this.index = 0;
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| 19 | }
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| 20 | _next(value) {
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| 21 | const destination = this.destination;
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| 22 | if (this.skipping) {
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| 23 | this.tryCallPredicate(value);
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| 24 | }
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| 25 | if (!this.skipping) {
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| 26 | destination.next(value);
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| 27 | }
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| 28 | }
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| 29 | tryCallPredicate(value) {
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| 30 | try {
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| 31 | const result = this.predicate(value, this.index++);
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| 32 | this.skipping = Boolean(result);
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| 33 | }
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| 34 | catch (err) {
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| 35 | this.destination.error(err);
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| 36 | }
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| 37 | }
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| 38 | }
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| 39 | //# sourceMappingURL=skipWhile.js.map |
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