CoffeeScript 2

by dandiebolt

HTML

<script src="https://github.com/jashkenas/coffee-script/raw/master/extras/coffee-script.js"></script>
<script>
    (function(){
        var s="script";
        var n='\n';
        var d=document;
        var b=d.getElementsByTagName(s)[2].innerHTML.split(n);
        d.write('<' + s + ' type="text/coffeescript">' + b.slice(2,b.length-2).join(n) + '</' + s + '>');
    })()
</script>

JavaScript

# Some CoffeeScript
a = "Howdy!"
alert a