18 lines
991 B
TypeScript
18 lines
991 B
TypeScript
import { Subject } from '../Subject';
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import { ConnectableObservable } from '../observable/ConnectableObservable';
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/**
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* Returns an Observable that emits the results of invoking a specified selector on items
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* emitted by a ConnectableObservable that shares a single subscription to the underlying stream.
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*
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* <img src="./img/multicast.png" width="100%">
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*
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* @param {Function} selector - a function that can use the multicasted source stream
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* as many times as needed, without causing multiple subscriptions to the source stream.
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* Subscribers to the given source will receive all notifications of the source from the
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* time of the subscription forward.
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* @returns {Observable} an Observable that emits the results of invoking the selector
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* on the items emitted by a `ConnectableObservable` that shares a single subscription to
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* the underlying stream.
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*/
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export declare function multicast<T>(subjectOrSubjectFactory: Subject<T> | (() => Subject<T>)): ConnectableObservable<T>;
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