import {Observable} from '../Observable';
import {multicast} from './multicast';
import {Subject} from '../Subject';
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 .publish().refCount().
*
* <img src="./img/share.png" width="100%">
*
* @returns {Observable<T>} an Observable that upon connection causes the source Observable to emit items to its Observers
*/
export function share<T>(): Observable<T> {
return multicast.call(this, shareSubjectFactory).refCount();
};
|