ZipTeamPurple-FrontEnd/node_modules/rxjs/_esm5/operator/delay.js

/** PURE_IMPORTS_START .._scheduler_async,.._operators_delay PURE_IMPORTS_END */
import { async } from '../scheduler/async';
import { delay as higherOrder } from '../operators/delay';
/**
 * Delays the emission of items from the source Observable by a given timeout or
 * until a given Date.
 *
 * <span class="informal">Time shifts each item by some specified amount of
 * milliseconds.</span>
 *
 * <img src="./img/delay.png" width="100%">
 *
 * If the delay argument is a Number, this operator time shifts the source
 * Observable by that amount of time expressed in milliseconds. The relative
 * time intervals between the values are preserved.
 *
 * If the delay argument is a Date, this operator time shifts the start of the
 * Observable execution until the given date occurs.
 *
 * @example <caption>Delay each click by one second</caption>
 * var clicks = Rx.Observable.fromEvent(document, 'click');
 * var delayedClicks = clicks.delay(1000); // each click emitted after 1 second
 * delayedClicks.subscribe(x => console.log(x));
 *
 * @example <caption>Delay all clicks until a future date happens</caption>
 * var clicks = Rx.Observable.fromEvent(document, 'click');
 * var date = new Date('March 15, 2050 12:00:00'); // in the future
 * var delayedClicks = clicks.delay(date); // click emitted only after that date
 * delayedClicks.subscribe(x => console.log(x));
 *
 * @see {@link debounceTime}
 * @see {@link delayWhen}
 *
 * @param {number|Date} delay The delay duration in milliseconds (a `number`) or
 * a `Date` until which the emission of the source items is delayed.
 * @param {Scheduler} [scheduler=async] The IScheduler to use for
 * managing the timers that handle the time-shift for each item.
 * @return {Observable} An Observable that delays the emissions of the source
 * Observable by the specified timeout or Date.
 * @method delay
 * @owner Observable
 */
export function delay(delay, scheduler) {
    if (scheduler === void 0) {
        scheduler = async;
    }
    return higherOrder(delay, scheduler)(this);
}
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