asorted | Fast and efficient sorted arrays in JavaScript

Returning A.Sort does not return the sorted array, it returns the Sort command's return value. Since Sort is a void method, it actually returns nothing, hence the error message.

So to return the sorted array, you need to return it after you sort it:

Well, you're quite right - using eval like that is a road to future pain.

The joy of 'sort' is that you can define a sort subroutine, that implicitly defines $a and $b and you can use whatever logic you desire to decide if it's a positive, negative or 'zero' comparison (equal). (e.g. like <=> or cmp do).

The trick here is - 'true' is anything non zero, so <=> you can test for 'true' to see if there's a comparison to be made ( 4 <=> 4 is 'false')

So if you're just working numerically (you'd need to test for 'alphanumeric' and use cmp in some cases there, but doesn't seem to apply to your data):

Let me guess, is this what you want to do?