JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.jsdelivr.net/gh/eu81273/jsfiddle-console/console.js"></script>
<!doctype html>

<html>
  <head>
    <link rel="stylesheet" href="lib/style.css">
    <script src="lib/script.js"></script>
  </head>

  <body>
    <h1>Hello Plunker!</h1>
  </body>
</html>

JavaScript

// Add your code here

var obj = {
  foo: 0,
  bar: 1
};

Object.observe(obj, function(changes) {
  console.log(changes);
});

obj.baz = 2;