biofriction-wp-theme/node_modules/rxjs/_esm5/operators/publish.js

24 lines
1.1 KiB
JavaScript

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