RxJS Playground
A blank canvas to play / experiment with RxJS: https://github.com/Reactive-Extensions/RxJS
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.7/rx.all.js"></script>
JavaScript
var click = Rx.Observable.fromEvent(document.body, 'click');
var source = click.map(e => Rx.Observable.of(1,2,3));
var example = source.concatAll();
example.subscribe({
next: (value) => { console.log(value); },
error: (err) => { console.log('Error: ' + err); },
complete: () => { console.log('complete'); }
});