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import { bufferCount as higherOrder } from '../operators/bufferCount';
/**
* Buffers the source Observable values until the size hits the maximum
* `bufferSize` given.
*
* <span class="informal">Collects values from the past as an array, and emits
* that array only when its size reaches `bufferSize`.</span>
*
* <img src="./img/bufferCount.png" width="100%">
*
* Buffers a number of values from the source Observable by `bufferSize` then
* emits the buffer and clears it, and starts a new buffer each
* `startBufferEvery` values. If `startBufferEvery` is not provided or is
* `null`, then new buffers are started immediately at the start of the source
* and when each buffer closes and is emitted.
*
* @example <caption>Emit the last two click events as an array</caption>
* var clicks = Rx.Observable.fromEvent(document, 'click');
* var buffered = clicks.bufferCount(2);
* buffered.subscribe(x => console.log(x));
*
* @example <caption>On every click, emit the last two click events as an array</caption>
* var clicks = Rx.Observable.fromEvent(document, 'click');
* var buffered = clicks.bufferCount(2, 1);
* buffered.subscribe(x => console.log(x));
*
* @see {@link buffer}
* @see {@link bufferTime}
* @see {@link bufferToggle}
* @see {@link bufferWhen}
* @see {@link pairwise}
* @see {@link windowCount}
*
* @param {number} bufferSize The maximum size of the buffer emitted.
* @param {number} [startBufferEvery] Interval at which to start a new buffer.
* For example if `startBufferEvery` is `2`, then a new buffer will be started
* on every other value from the source. A new buffer is started at the
* beginning of the source by default.
* @return {Observable<T[]>} An Observable of arrays of buffered values.
* @method bufferCount
* @owner Observable
*/
export function bufferCount(bufferSize, startBufferEvery = null) {
return higherOrder(bufferSize, startBufferEvery)(this);
}
//# sourceMappingURL=bufferCount.js.map
Version data entries
49 entries across 49 versions & 4 rubygems