iOS: Splitting NSString into FilePath&Name + Extension

Question

iOS: Splitting NSString into FilePath&Name + Extension

How do I split

@"blah/.../myfile.txt"

into

@"blah/.../myfile" 

and

@"txt"

Answer 1

NSString* fileName = [fileString stringByDeletingPathExtension];
NSString* extension = [fileString pathExtension];