Sort a number array descending
A simple example of sorting a number array descending.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script>
var numbers = [56, 121, 10, 3, 15, 145, 389, 261];
console.log("Numbers before sort = " + numbers);
numbers.sort(function(a, b){return b-a});
console.log("Numbers after sort = " + numbers);
</script>
</body>
</html>