dist/vendor.js
function delay(delay, scheduler) {
	    if (scheduler === void 0) { scheduler = async_1.async; }
	    var absoluteDelay = isDate_1.isDate(delay);
	    var delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);
	    return this.lift(new DelayOperator(delayFor, scheduler));
	}
function delay(delay, scheduler) {
	    if (scheduler === void 0) { scheduler = async_1.async; }
	    var absoluteDelay = isDate_1.isDate(delay);
	    var delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);
	    return this.lift(new DelayOperator(delayFor, scheduler));
	}
function delay ( delay , scheduler ) { if ( scheduler === void 0 ) { scheduler = async_1 . async ; } var absoluteDelay = isDate_1 . isDate ( delay ) ; var delayFor = absoluteDelay ? ( + delay - scheduler . now ( ) ) : Math . abs ( delay ) ; return this . lift ( new DelayOperator ( delayFor , scheduler ) ) ; }
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 Scheduler 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
Delays the emission of items from the source Observable by a given timeout or until a given Date .