static const Vs extern const

Question

I have been using static const in my header files as so:

static NSString * const myString = @\"foo\";

But have read that this is not the \'

Answer 1

#define myString @"foo"

There is example why:

You will be able concatenate strings in compile time:

NSLog(@"%@", @"Say hello to " myString);

will output: Say hello to foo