RxJS: toBlocking
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.7/rx.all.js"></script>
Babel + JSX
var o = Rx.Observable.from([1,2,3,4]);
o.subscribe(console.log);
<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.7/rx.all.js"></script>
var o = Rx.Observable.from([1,2,3,4]);
o.subscribe(console.log);