Objective-C - NSLog - "%@" Referencing Character

Question

I'm working through a BNR iOS Programming text and I came across this piece of code:

 NSLog(@"%@", [items objectAtIndex:i]);

I am unsure of what "%@" is used for. I've seen other formats for referencing integers or characters, but I've never seen this.

I even checked this reference here and it had nothing.

Thanks!

Answer 1

%@ is for printing objective-c objects.

To be a bit more precise. Every object is able to override

-(NSString *)description

This method is called when you use %@. It depends on the object what info of the object it will return in the NSString.