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Last change
on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
758 bytes
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| 1 | import { Observable } from '../Observable';
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| 2 | import { async } from '../scheduler/async';
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| 3 | import { isNumeric } from '../util/isNumeric';
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| 4 | export function interval(period = 0, scheduler = async) {
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| 5 | if (!isNumeric(period) || period < 0) {
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| 6 | period = 0;
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| 7 | }
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| 8 | if (!scheduler || typeof scheduler.schedule !== 'function') {
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| 9 | scheduler = async;
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| 10 | }
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| 11 | return new Observable(subscriber => {
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| 12 | subscriber.add(scheduler.schedule(dispatch, period, { subscriber, counter: 0, period }));
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| 13 | return subscriber;
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| 14 | });
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| 15 | }
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| 16 | function dispatch(state) {
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| 17 | const { subscriber, counter, period } = state;
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| 18 | subscriber.next(counter);
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| 19 | this.schedule({ subscriber, counter: counter + 1, period }, period);
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| 20 | }
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| 21 | //# sourceMappingURL=interval.js.map |
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