source: trip-planner-front/node_modules/rxjs/internal/operators/dematerialize.d.ts

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1import { Notification } from '../Notification';
2import { OperatorFunction } from '../types';
3/**
4 * Converts an Observable of {@link Notification} objects into the emissions
5 * that they represent.
6 *
7 * <span class="informal">Unwraps {@link Notification} objects as actual `next`,
8 * `error` and `complete` emissions. The opposite of {@link materialize}.</span>
9 *
10 * ![](dematerialize.png)
11 *
12 * `dematerialize` is assumed to operate an Observable that only emits
13 * {@link Notification} objects as `next` emissions, and does not emit any
14 * `error`. Such Observable is the output of a `materialize` operation. Those
15 * notifications are then unwrapped using the metadata they contain, and emitted
16 * as `next`, `error`, and `complete` on the output Observable.
17 *
18 * Use this operator in conjunction with {@link materialize}.
19 *
20 * ## Example
21 * Convert an Observable of Notifications to an actual Observable
22 * ```ts
23 * import { of, Notification } from 'rxjs';
24 * import { dematerialize } from 'rxjs/operators';
25 *
26 * const notifA = new Notification('N', 'A');
27 * const notifB = new Notification('N', 'B');
28 * const notifE = new Notification('E', undefined,
29 * new TypeError('x.toUpperCase is not a function')
30 * );
31 * const materialized = of(notifA, notifB, notifE);
32 * const upperCase = materialized.pipe(dematerialize());
33 * upperCase.subscribe(x => console.log(x), e => console.error(e));
34 *
35 * // Results in:
36 * // A
37 * // B
38 * // TypeError: x.toUpperCase is not a function
39 * ```
40 *
41 * @see {@link Notification}
42 * @see {@link materialize}
43 *
44 * @return {Observable} An Observable that emits items and notifications
45 * embedded in Notification objects emitted by the source Observable.
46 * @method dematerialize
47 * @owner Observable
48 */
49export declare function dematerialize<T>(): OperatorFunction<Notification<T>, T>;
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