JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div id="app">
  {{ foo }}
  {{ bar }}
</div>

Babel + JSX

let FOO = 0;

let vm = new Vue({
	el: '#app',
  data() {
    return {
      BAR: 0,
    }
  },
  computed: {
    foo() {
      return FOO;
    },
    bar() {
      return this.BAR;
    }
  }
})

setTimeout(() => {
  FOO++;
  vm.BAR++;
}, 1000);