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node_modules/rxjs/_esm5/operator/sampleTime.js

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+/** PURE_IMPORTS_START .._scheduler_async,.._operators_sampleTime PURE_IMPORTS_END */
+import { async } from '../scheduler/async';
+import { sampleTime as higherOrder } from '../operators/sampleTime';
+/**
+ * Emits the most recently emitted value from the source Observable within
+ * periodic time intervals.
+ *
+ * <span class="informal">Samples the source Observable at periodic time
+ * intervals, emitting what it samples.</span>
+ *
+ * <img src="./img/sampleTime.png" width="100%">
+ *
+ * `sampleTime` periodically looks at the source Observable and emits whichever
+ * value it has most recently emitted since the previous sampling, unless the
+ * source has not emitted anything since the previous sampling. The sampling
+ * happens periodically in time every `period` milliseconds (or the time unit
+ * defined by the optional `scheduler` argument). The sampling starts as soon as
+ * the output Observable is subscribed.
+ *
+ * @example <caption>Every second, emit the most recent click at most once</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var result = clicks.sampleTime(1000);
+ * result.subscribe(x => console.log(x));
+ *
+ * @see {@link auditTime}
+ * @see {@link debounceTime}
+ * @see {@link delay}
+ * @see {@link sample}
+ * @see {@link throttleTime}
+ *
+ * @param {number} period The sampling period expressed in milliseconds or the
+ * time unit determined internally by the optional `scheduler`.
+ * @param {Scheduler} [scheduler=async] The {@link IScheduler} to use for
+ * managing the timers that handle the sampling.
+ * @return {Observable<T>} An Observable that emits the results of sampling the
+ * values emitted by the source Observable at the specified time interval.
+ * @method sampleTime
+ * @owner Observable
+ */
+export function sampleTime(period, scheduler) {
+    if (scheduler === void 0) {
+        scheduler = async;
+    }
+    return higherOrder(period, scheduler)(this);
+}
+//# sourceMappingURL=sampleTime.js.map