CODEWITHSUNDEEP
iosmethodsmethod-signature
marciokoko
marciokoko

Reputation: 4986

Why does this method signature work?

I just ran across a bit of code that has a method like this:

- (void) AddImage:(NSString *)imageURL: (UIImage *)image{
    [imgCache setObject:image forKey:imageURL];
}

Normally I see methods that say:

-(typeReturned)methodParameter1:(Param1Type)name1 Parameter2:(Param2Type)name2{
    //do something
}

But this method seems to have omitted the Parameter2. Why does this work?

Upvotes: 2

Views: 74

Answers (1)

Thorsten
Thorsten

Reputation: 3122

This is at least uncommon and throws a warning. "imageURL" is not "Parameter2" but "name1". So "Parameter2" is empty. You would call it this way:

[self AddImage:@"eins" :[UIImage imageNamed:@"1.png"]];

I would avoid it :).

Upvotes: 4

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