shell bypass 403
import { Observable } from '../Observable';
import { isEmpty as higherOrder } from '../operators/isEmpty';
/**
* If the source Observable is empty it returns an Observable that emits true, otherwise it emits false.
*
* <img src="./img/isEmpty.png" width="100%">
*
* @return {Observable} An Observable that emits a Boolean.
* @method isEmpty
* @owner Observable
*/
export function isEmpty<T>(this: Observable<T>): Observable<boolean> {
return higherOrder()(this);
}