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Wed is a schema-aware editor for XML documents.
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JavaScript
define(function(require,exports,module){
/** PURE_IMPORTS_START _Observable PURE_IMPORTS_END */
import { Observable } from '../Observable';
/**
* The same Observable instance returned by any call to {@link empty} without a
* {@link Scheduler}. It is preferrable to use this over `empty()`.
*/
export var EMPTY = /*@__PURE__*/ new Observable(function (subscriber) { return subscriber.complete(); });
/**
* Creates an Observable that emits no items to the Observer and immediately
* emits a complete notification.
*
* <span class="informal">Just emits 'complete', and nothing else.
* </span>
*
* <img src="./img/empty.png" width="100%">
*
* This static operator is useful for creating a simple Observable that only
* emits the complete notification. It can be used for composing with other
* Observables, such as in a {@link mergeMap}.
*
* @example <caption>Emit the number 7, then complete.</caption>
* var result = Rx.Observable.empty().startWith(7);
* result.subscribe(x => console.log(x));
*
* @example <caption>Map and flatten only odd numbers to the sequence 'a', 'b', 'c'</caption>
* var interval = Rx.Observable.interval(1000);
* var result = interval.mergeMap(x =>
* x % 2 === 1 ? Rx.Observable.of('a', 'b', 'c') : Rx.Observable.empty()
* );
* result.subscribe(x => console.log(x));
*
* // Results in the following to the console:
* // x is equal to the count on the interval eg(0,1,2,3,...)
* // x will occur every 1000ms
* // if x % 2 is equal to 1 print abc
* // if x % 2 is not equal to 1 nothing will be output
*
* @see {@link create}
* @see {@link never}
* @see {@link of}
* @see {@link throw}
*
* @param {Scheduler} [scheduler] A {@link IScheduler} to use for scheduling
* the emission of the complete notification.
* @return {Observable} An "empty" Observable: emits only the complete
* notification.
* @static true
* @name empty
* @owner Observable
* @deprecated Deprecated in favor of using EMPTY constant.
*/
export function empty(scheduler) {
return scheduler ? emptyScheduled(scheduler) : EMPTY;
}
export function emptyScheduled(scheduler) {
return new Observable(function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });
}
//# sourceMappingURL=empty.js.map
return module.exports;
});