JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/3.1.2/rx.all.compat.js"></script>
<div id="console"></div>

JavaScript

var countStream = Rx.Observable.range(1, 100);
var convertedStream = countStream.map(function(x) {
    if ((x % 15) == 0)
        return 'FizzBuzz';
    if ((x % 3) == 0)
        return 'Fizz';
    if ((x % 5) == 0)
        return 'Buzz';
    return x;
});
var output = convertedStream.subscribe(function(x) {
    $('<span>' + x + '</span><br />').appendTo($('#console'));
});