Using Textbox.io - Get Editor Instances
HTML
<script src="https://s3.amazonaws.com/static.ephox.com/jsfiddle/textboxio/textboxio.js"></script>
<html>
<head>
<meta charset="UTF-8">
<title>let and const real world</title>
</head>
<body>
<script>
{
const name = 'wes';
console.log(name);
}
for(let i = 0; i < 10; i++) {
console.log(i);
setTimeout(function() {
console.log('The number is ' + i);
},1000);
}
</script>
</body>
</html>