43 lines
1.9 KiB
JavaScript
43 lines
1.9 KiB
JavaScript
|
import { bufferToggle as higherOrder } from '../operators/bufferToggle';
|
||
|
|
/**
|
||
|
|
* Buffers the source Observable values starting from an emission from
|
||
|
|
* `openings` and ending when the output of `closingSelector` emits.
|
||
|
|
*
|
||
|
|
* <span class="informal">Collects values from the past as an array. Starts
|
||
|
|
* collecting only when `opening` emits, and calls the `closingSelector`
|
||
|
|
* function to get an Observable that tells when to close the buffer.</span>
|
||
|
|
*
|
||
|
|
* <img src="./img/bufferToggle.png" width="100%">
|
||
|
|
*
|
||
|
|
* Buffers values from the source by opening the buffer via signals from an
|
||
|
|
* Observable provided to `openings`, and closing and sending the buffers when
|
||
|
|
* a Subscribable or Promise returned by the `closingSelector` function emits.
|
||
|
|
*
|
||
|
|
* @example <caption>Every other second, emit the click events from the next 500ms</caption>
|
||
|
|
* var clicks = Rx.Observable.fromEvent(document, 'click');
|
||
|
|
* var openings = Rx.Observable.interval(1000);
|
||
|
|
* var buffered = clicks.bufferToggle(openings, i =>
|
||
|
|
* i % 2 ? Rx.Observable.interval(500) : Rx.Observable.empty()
|
||
|
|
* );
|
||
|
|
* buffered.subscribe(x => console.log(x));
|
||
|
|
*
|
||
|
|
* @see {@link buffer}
|
||
|
|
* @see {@link bufferCount}
|
||
|
|
* @see {@link bufferTime}
|
||
|
|
* @see {@link bufferWhen}
|
||
|
|
* @see {@link windowToggle}
|
||
|
|
*
|
||
|
|
* @param {SubscribableOrPromise<O>} openings A Subscribable or Promise of notifications to start new
|
||
|
|
* buffers.
|
||
|
|
* @param {function(value: O): SubscribableOrPromise} closingSelector A function that takes
|
||
|
|
* the value emitted by the `openings` observable and returns a Subscribable or Promise,
|
||
|
|
* which, when it emits, signals that the associated buffer should be emitted
|
||
|
|
* and cleared.
|
||
|
|
* @return {Observable<T[]>} An observable of arrays of buffered values.
|
||
|
|
* @method bufferToggle
|
||
|
|
* @owner Observable
|
||
|
|
*/
|
||
|
|
export function bufferToggle(openings, closingSelector) {
|
||
|
|
return higherOrder(openings, closingSelector)(this);
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=bufferToggle.js.map
|