JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://imakewebthings.github.com/jquery-waypoints/waypoints.min.js"></script>
<div style="height: 500px">Scroll down</div>
<div id="waypoint">Waypoint</div>

JavaScript

$('#waypoint').waypoint(function() {
    alert('You have scrolled to an entry.');
});