sample
RxJS 5 sample
HTML
<script src="https://npmcdn.com/@reactivex/[email protected]/dist/global/Rx.umd.js"></script>JavaScript
//emit value every 1s
const source = Rx.Observable.interval(1000);
//sample last emitted value from source every 2s
const example = source.sample(Rx.Observable.interval(2000));
//output: 2..4..6..8..
const subscribe = example.subscribe(val => console.log(val));