range

signature: range(start: number, count: number, scheduler: Scheduler): Observable

Emit numbers in provided range in sequence.

Ultimate RxJS

Examples

Example 1: Emit range 1-10

( StackBlitz | jsBin | jsFiddle )

// RxJS v6+
import { range } from 'rxjs';
//emit 1-10 in sequence
const source = range(1, 10);
//output: 1,2,3,4,5,6,7,8,9,10
const example = source.subscribe(val => console.log(val));

Additional Resources

  • range 📰 - Official docs

📁 Source Code: https://github.com/ReactiveX/rxjs/blob/master/src/internal/observable/range.ts