You should take a look at the array sort method. You can use it and pass in a function that performs the sorting based on whatever criteria you like.

Here's an example on how to Sort an Array in Javascript

The sort method takes a function as a parameter:

var a = ["one", "two", "three", "four", "five"];

a.sort(function(a,b){
  return a.length - b.length
});
// returns ["one", "two", "four", "five", "three"]