JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.1.18/rx.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.1.18/rx.binding.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.1.18/rx.time.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs-dom/2.0.7/rx.dom.js"></script>
<ul id="results"></ul>

JavaScript

var obs = Rx.Observable.timer(
    1000,
    1000);

obs.subscribe(function (x) {
    // Scheduled using requestAnimationFrame
    console.log(x);
});