Example 1: Emit range 1-10
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// RxJS v6+import { range } from 'rxjs';//emit 1-10 in sequenceconst source = range(1, 10);//output: 1,2,3,4,5,6,7,8,9,10const example = source.subscribe(val => console.log(val));
range 📰 - Official docs
📁 Source Code: https://github.com/ReactiveX/rxjs/blob/master/src/internal/observable/range.ts