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12 lines
464 B
12 lines
464 B
2 years ago
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import { switchMap } from './switchMap';
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import { operate } from '../util/lift';
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export function switchScan(accumulator, seed) {
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return operate((source, subscriber) => {
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let state = seed;
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switchMap((value, index) => accumulator(state, value, index), (_, innerValue) => ((state = innerValue), innerValue))(source).subscribe(subscriber);
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return () => {
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state = null;
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};
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});
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}
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//# sourceMappingURL=switchScan.js.map
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