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node_modules/rxjs/_esm2015/operator/bufferTime.js

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+import { async } from '../scheduler/async';
+import { isScheduler } from '../util/isScheduler';
+import { bufferTime as higherOrder } from '../operators/bufferTime';
+/* tslint:enable:max-line-length */
+/**
+ * Buffers the source Observable values for a specific time period.
+ *
+ * <span class="informal">Collects values from the past as an array, and emits
+ * those arrays periodically in time.</span>
+ *
+ * <img src="./img/bufferTime.png" width="100%">
+ *
+ * Buffers values from the source for a specific time duration `bufferTimeSpan`.
+ * Unless the optional argument `bufferCreationInterval` is given, it emits and
+ * resets the buffer every `bufferTimeSpan` milliseconds. If
+ * `bufferCreationInterval` is given, this operator opens the buffer every
+ * `bufferCreationInterval` milliseconds and closes (emits and resets) the
+ * buffer every `bufferTimeSpan` milliseconds. When the optional argument
+ * `maxBufferSize` is specified, the buffer will be closed either after
+ * `bufferTimeSpan` milliseconds or when it contains `maxBufferSize` elements.
+ *
+ * @example <caption>Every second, emit an array of the recent click events</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var buffered = clicks.bufferTime(1000);
+ * buffered.subscribe(x => console.log(x));
+ *
+ * @example <caption>Every 5 seconds, emit the click events from the next 2 seconds</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var buffered = clicks.bufferTime(2000, 5000);
+ * buffered.subscribe(x => console.log(x));
+ *
+ * @see {@link buffer}
+ * @see {@link bufferCount}
+ * @see {@link bufferToggle}
+ * @see {@link bufferWhen}
+ * @see {@link windowTime}
+ *
+ * @param {number} bufferTimeSpan The amount of time to fill each buffer array.
+ * @param {number} [bufferCreationInterval] The interval at which to start new
+ * buffers.
+ * @param {number} [maxBufferSize] The maximum buffer size.
+ * @param {Scheduler} [scheduler=async] The scheduler on which to schedule the
+ * intervals that determine buffer boundaries.
+ * @return {Observable<T[]>} An observable of arrays of buffered values.
+ * @method bufferTime
+ * @owner Observable
+ */
+export function bufferTime(bufferTimeSpan) {
+    let length = arguments.length;
+    let scheduler = async;
+    if (isScheduler(arguments[arguments.length - 1])) {
+        scheduler = arguments[arguments.length - 1];
+        length--;
+    }
+    let bufferCreationInterval = null;
+    if (length >= 2) {
+        bufferCreationInterval = arguments[1];
+    }
+    let maxBufferSize = Number.POSITIVE_INFINITY;
+    if (length >= 3) {
+        maxBufferSize = arguments[2];
+    }
+    return higherOrder(bufferTimeSpan, bufferCreationInterval, maxBufferSize, scheduler)(this);
+}
+//# sourceMappingURL=bufferTime.js.map