Sort NSMutableArray with strings that contain numbers?

Question

I have a NSMutableArray and it has the users high scores saved into it. I want to arrange the items numerically (the numbers are stored in NSStrings.)
Example:
4,2,7,8

Answer 1

The NSMutableArray method sortUsingSelector: should do it:

[scoreArray sortUsingSelector:@selector(localizedCaseInsensitiveCompare:)]

should do it.