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Contents
import { Observable } from '../Observable';
import { multicast } from './multicast';
import { refCount } from './refCount';
import { Subject } from '../Subject';
import { MonoTypeOperatorFunction } from '../interfaces';
function shareSubjectFactory() {
return new Subject();
}
/**
* Returns a new Observable that multicasts (shares) the original Observable. As long as there is at least one
* Subscriber this Observable will be subscribed and emitting data. When all subscribers have unsubscribed it will
* unsubscribe from the source Observable. Because the Observable is multicasting it makes the stream `hot`.
* This is an alias for .multicast(() => new Subject()).refCount().
*
* <img src="./img/share.png" width="100%">
*
* @return {Observable<T>} An Observable that upon connection causes the source Observable to emit items to its Observers.
* @method share
* @owner Observable
*/
export function share<T>(): MonoTypeOperatorFunction<T> {
return (source: Observable<T>) => refCount()(multicast(shareSubjectFactory)(source)) as Observable<T>;
};
Version data entries
49 entries across 49 versions & 4 rubygems