concat

RxJS 5 concat

by Huy Le

HTML

<script src="https://npmcdn.com/@reactivex/[email protected]/dist/global/Rx.umd.js"></script>

JavaScript

//emits 1,2,3
const sourceOne = Rx.Observable.of(1,2,3);
//emits 4,5,6
const sourceTwo = Rx.Observable.of(4,5,6);
//emit values from sourceOne, when complete, subscribe to sourceTwo
const example = sourceOne.concat(sourceTwo);
//output: 1,2,3,4,5,6
const subscribe = example.subscribe(val => console.log('Example 1: Basic concat:', val));