take
RxJS 5 take
HTML
<script src="https://npmcdn.com/@reactivex/[email protected]/dist/global/Rx.umd.js"></script>JavaScript
//emit 1,2,3,4,5
const source = Rx.Observable.of(1,2,3,4,5);
//take the first emitted value then complete
const example = source.take(1);
//output: 1
const subscribe = example.subscribe(val => console.log(val));