This is a React JS app that allows users to compare data side-by-side using a pair of dropdown inputs. You can view a live example here.
This app was inspired heavily by a tool created by Carla Astudillo.
This app is designed to be embedded as an iframe. It uses pym.js to resize the iframe's height as needed. To embed this app and take advantage of pym, your embed code should look something like this:
<div id="container"></div>
<script type="text/javascript" src="https://pym.nprapps.org/pym.v1.min.js"></script>
<script>var pymParent = new pym.Parent('container',
'https://data-compare.herokuapp.com/', {});</script>