1 import { Observable } from '../Observable';
3 * An Observable that emits no items to the Observer and never completes.
7 * A simple Observable that emits neither values nor errors nor the completion
8 * notification. It can be used for testing purposes or for composing with other
9 * Observables. Please note that by never emitting a complete notification, this
10 * Observable keeps the subscription from being disposed automatically.
11 * Subscriptions need to be manually disposed.
14 * ### Emit the number 7, then never emit anything else (not even complete)
16 * import { NEVER } from 'rxjs';
17 * import { startWith } from 'rxjs/operators';
20 * console.log('Will not be called');
22 * const result = NEVER.pipe(startWith(7));
23 * result.subscribe(x => console.log(x), info, info);
27 * @see {@link Observable}
28 * @see {@link index/EMPTY}
30 * @see {@link throwError}
32 export declare const NEVER: Observable<never>;
34 * @deprecated Deprecated in favor of using {@link NEVER} constant.
36 export declare function never(): Observable<never>;