So I searched through the cocoabuilder.com threads on array sorting to
see what had been discussed regarding this topic. My goal is to
reverse alphabetically sort an array of NSString objects. I saw a
couple suggestions:
1. Categories to add funcationality to NSString and then use the
NSArray method sortedArrayUsingSelector(reverseLocalizedCompare:),
where reverseLocalizedCompare: is the new method I added.
2. Implement a straight C function and use
sortedArrayUsingFunction:context:hint: to call it.
I would rather use pure Cocoa for this and came up with the following:
That seems to work just fine... but I'm worried. I "guessed" at using
the key of "nil" since I want the actual objects in the array to be
the target for the @selector. Is it a fluke that this works? I don't
want to rely on undefined behavior.
Thanks in advance,
George
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