20 lines
948 B
Plaintext
20 lines
948 B
Plaintext
import { ObservableInput, ObservedValueOf, OperatorFunction } from '../types';
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/**
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* Applies an accumulator function over the source Observable where the
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* accumulator function itself returns an Observable, emitting values
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* only from the most recently returned Observable.
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*
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* <span class="informal">It's like {@link mergeScan}, but only the most recent
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* Observable returned by the accumulator is merged into the outer Observable.</span>
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*
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* @see {@link scan}
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* @see {@link mergeScan}
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* @see {@link switchMap}
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*
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* @param accumulator
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* The accumulator function called on each source value.
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* @param seed The initial accumulation value.
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* @return A function that returns an observable of the accumulated values.
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*/
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export declare function switchScan<T, R, O extends ObservableInput<any>>(accumulator: (acc: R, value: T, index: number) => O, seed: R): OperatorFunction<T, ObservedValueOf<O>>;
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//# sourceMappingURL=switchScan.d.ts.map |