update

node_modules/rxjs/operators/dematerialize.d.ts

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+import { Notification } from '../Notification';
+import { OperatorFunction } from '../interfaces';
+/**
+ * Converts an Observable of {@link Notification} objects into the emissions
+ * that they represent.
+ *
+ * <span class="informal">Unwraps {@link Notification} objects as actual `next`,
+ * `error` and `complete` emissions. The opposite of {@link materialize}.</span>
+ *
+ * <img src="./img/dematerialize.png" width="100%">
+ *
+ * `dematerialize` is assumed to operate an Observable that only emits
+ * {@link Notification} objects as `next` emissions, and does not emit any
+ * `error`. Such Observable is the output of a `materialize` operation. Those
+ * notifications are then unwrapped using the metadata they contain, and emitted
+ * as `next`, `error`, and `complete` on the output Observable.
+ *
+ * Use this operator in conjunction with {@link materialize}.
+ *
+ * @example <caption>Convert an Observable of Notifications to an actual Observable</caption>
+ * var notifA = new Rx.Notification('N', 'A');
+ * var notifB = new Rx.Notification('N', 'B');
+ * var notifE = new Rx.Notification('E', void 0,
+ *   new TypeError('x.toUpperCase is not a function')
+ * );
+ * var materialized = Rx.Observable.of(notifA, notifB, notifE);
+ * var upperCase = materialized.dematerialize();
+ * upperCase.subscribe(x => console.log(x), e => console.error(e));
+ *
+ * // Results in:
+ * // A
+ * // B
+ * // TypeError: x.toUpperCase is not a function
+ *
+ * @see {@link Notification}
+ * @see {@link materialize}
+ *
+ * @return {Observable} An Observable that emits items and notifications
+ * embedded in Notification objects emitted by the source Observable.
+ * @method dematerialize
+ * @owner Observable
+ */
+export declare function dematerialize<T>(): OperatorFunction<Notification<T>, T>;