interval

signature: interval(period: number, scheduler: Scheduler): Observable
Emit numbers in sequence based on provided timeframe.
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Examples
Example 1: Emit sequence of values at 1 second interval
( StackBlitz | jsBin | jsFiddle )
// RxJS v6+
import { interval } from 'rxjs';
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//emit value in sequence every 1 second
const source = interval(1000);
//output: 0,1,2,3,4,5....
const subscribe = source.subscribe(val => console.log(val));
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Additional Resources
​interval 📰 - Official docs
​Creation operators: interval and timer​
🎥 💵 - André Staltz
​Build your own interval operator​
🎥 - Kwinten Pisman
📁 Source Code: https://github.com/ReactiveX/rxjs/blob/master/src/internal/observable/interval.ts​

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Last modified 2yr ago