JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/prototype/1.7.1/prototype.js"></script>
<script>
    console.log("Using v" + Prototype.Version);
</script>

JavaScript

/*var a = [[2,5], [3,3], [4,2], [5,1], [1,4]].sortBy(function(s,i) {
  return s;
});
alert(a);*/
alert([1,2].join([3,4]));
/*var a = [3].inject(
    [1,2,5], function(arr, e, index) {
        alert(arr[index] + ':' + index + ':' + e);
    //arr.push('Done ' + e);
    return arr;
});
alert('Final Array : ' + a)*/