22 lines
1.0 KiB
JavaScript
22 lines
1.0 KiB
JavaScript
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import { Subject } from '../Subject';
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import { multicast } from './multicast';
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/* tslint:enable:max-line-length */
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/**
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* Returns a ConnectableObservable, which is a variety of Observable that waits until its connect method is called
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* before it begins emitting items to those Observers that have subscribed to it.
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*
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* <img src="./img/publish.png" width="100%">
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*
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* @param {Function} [selector] - Optional selector function which can use the multicasted source sequence as many times
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* as needed, without causing multiple subscriptions to the source sequence.
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* Subscribers to the given source will receive all notifications of the source from the time of the subscription on.
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* @return A ConnectableObservable that upon connection causes the source Observable to emit items to its Observers.
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* @method publish
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* @owner Observable
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*/
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export function publish(selector) {
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return selector ?
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multicast(() => new Subject(), selector) :
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multicast(new Subject());
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}
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//# sourceMappingURL=publish.js.map
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