JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head> 
<meta charset="utf-8">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.6/angular.js"></script>
</head>
<body>
<div ng-app>
{{
    'a'.constructor.prototype.charCodeAt=[].concat
}}
</div>
<script>
onload=function(){
  alert('abc'.charCodeAt(0));
}
</script>
</body>
</html>