| 1 | import { AsyncIterableX } from './asynciterablex';
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| 2 | export class TimeIntervalAsyncIterable extends AsyncIterableX {
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| 3 | constructor(source) {
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| 4 | super();
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| 5 | this._source = source;
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| 6 | }
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| 7 | async *[Symbol.asyncIterator]() {
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| 8 | let last = Date.now();
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| 9 | for await (let item of this._source) {
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| 10 | const now = Date.now();
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| 11 | const span = now - last;
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| 12 | last = now;
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| 13 | yield { value: item, elapsed: span };
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| 14 | }
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| 15 | }
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| 16 | }
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| 17 | export function timeInterval(source) {
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| 18 | return new TimeIntervalAsyncIterable(source);
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| 19 | }
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| 20 |
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| 21 |
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