RxJS - Utility Operator timeInterval

This operator will return an object which contains current value and the time elapsed between the current and previous value that is calculated using scheduler input taken.

Syntax

timeInterval(scheduler): Observable

Parameters

scheduler − (optional) The scheduler input is used to calculate the time elapsed between the current and previous value from source Observable.

Return value

It will return an observable that will have source values and also the time interval.

Example

import { of } from 'rxjs';
import { filter, timeInterval } from 'rxjs/operators';

let list1 = of(2, 3, 4, 5, 6);
let final_val = list1.pipe(timeInterval());
final_val.subscribe(x => console.log(x));

Output