Code coverage report for src/operator/share.ts

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All files » src/operator/ » share.ts
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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();
};