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- import { Subscriber } from '../Subscriber';
- export function isEmpty() {
- return (source) => source.lift(new IsEmptyOperator());
- }
- class IsEmptyOperator {
- call(observer, source) {
- return source.subscribe(new IsEmptySubscriber(observer));
- }
- }
- /**
- * We need this JSDoc comment for affecting ESDoc.
- * @ignore
- * @extends {Ignored}
- */
- class IsEmptySubscriber extends Subscriber {
- constructor(destination) {
- super(destination);
- }
- notifyComplete(isEmpty) {
- const destination = this.destination;
- destination.next(isEmpty);
- destination.complete();
- }
- _next(value) {
- this.notifyComplete(false);
- }
- _complete() {
- this.notifyComplete(true);
- }
- }
- //# sourceMappingURL=isEmpty.js.map
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