22 lines
806 B
JavaScript
22 lines
806 B
JavaScript
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import { createOperatorSubscriber } from './OperatorSubscriber';
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export function scanInternals(accumulator, seed, hasSeed, emitOnNext, emitBeforeComplete) {
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return (source, subscriber) => {
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let hasState = hasSeed;
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let state = seed;
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let index = 0;
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source.subscribe(createOperatorSubscriber(subscriber, (value) => {
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const i = index++;
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state = hasState
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?
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accumulator(state, value, i)
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:
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((hasState = true), value);
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emitOnNext && subscriber.next(state);
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}, emitBeforeComplete &&
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(() => {
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hasState && subscriber.next(state);
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subscriber.complete();
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})));
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};
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}
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//# sourceMappingURL=scanInternals.js.map
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