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I’m just looking at NSString.h and wonder why some method declaration args use
(NSString *)string; while others use (NSString *)aString.
What are the conventions practiced here?
It’s simply the indefinite article “a”, as in the parameter is “a string”. It appears in some methods to make them read a little more like English. For example,
compare:(NSString*)aStringreads as “compare a string”. The official naming conventions for method parameters are rather basic; they show the use of the indefinite article but don’t explain why.