How to use NSSortDescriptor without key

Question

I have NSSet of NSStrings. I want to return alphabetically sorted array of NSSet elements with method – sortedArrayUsingDescriptors:.

I have read NSSortDescriptor documentation and still have no clue how to create one for simple NSString objects.

What key should I specify? Is there a better approach than using NSSortDescriptor?

Answer 1

I can't find it documented that passing nil for the key is safe and means to use the object itself. So, I'd be hesitant to use it. You can use @"self" instead.