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61 lines
2.7 KiB
TypeScript
61 lines
2.7 KiB
TypeScript
import { IScheduler } from '../Scheduler';
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import { Observable } from '../Observable';
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import { TeardownLogic } from '../Subscription';
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import { Subscriber } from '../Subscriber';
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/**
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* We need this JSDoc comment for affecting ESDoc.
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* @extends {Ignored}
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* @hide true
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*/
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export declare class TimerObservable extends Observable<number> {
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/**
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* Creates an Observable that starts emitting after an `initialDelay` and
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* emits ever increasing numbers after each `period` of time thereafter.
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*
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* <span class="informal">Its like {@link interval}, but you can specify when
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* should the emissions start.</span>
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*
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* <img src="./img/timer.png" width="100%">
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*
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* `timer` returns an Observable that emits an infinite sequence of ascending
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* integers, with a constant interval of time, `period` of your choosing
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* between those emissions. The first emission happens after the specified
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* `initialDelay`. The initial delay may be a {@link Date}. By default, this
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* operator uses the `async` IScheduler to provide a notion of time, but you
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* may pass any IScheduler to it. If `period` is not specified, the output
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* Observable emits only one value, `0`. Otherwise, it emits an infinite
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* sequence.
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*
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* @example <caption>Emits ascending numbers, one every second (1000ms), starting after 3 seconds</caption>
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* var numbers = Rx.Observable.timer(3000, 1000);
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* numbers.subscribe(x => console.log(x));
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*
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* @example <caption>Emits one number after five seconds</caption>
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* var numbers = Rx.Observable.timer(5000);
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* numbers.subscribe(x => console.log(x));
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*
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* @see {@link interval}
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* @see {@link delay}
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*
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* @param {number|Date} initialDelay The initial delay time to wait before
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* emitting the first value of `0`.
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* @param {number} [period] The period of time between emissions of the
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* subsequent numbers.
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* @param {Scheduler} [scheduler=async] The IScheduler to use for scheduling
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* the emission of values, and providing a notion of "time".
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* @return {Observable} An Observable that emits a `0` after the
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* `initialDelay` and ever increasing numbers after each `period` of time
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* thereafter.
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* @static true
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* @name timer
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* @owner Observable
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*/
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static create(initialDelay?: number | Date, period?: number | IScheduler, scheduler?: IScheduler): Observable<number>;
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static dispatch(state: any): any;
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private period;
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private dueTime;
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private scheduler;
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constructor(dueTime?: number | Date, period?: number | IScheduler, scheduler?: IScheduler);
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/** @deprecated internal use only */ _subscribe(subscriber: Subscriber<number>): TeardownLogic;
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}
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