How to create constant NSString by concatenating strings in Obj-C?

Question

I\'m trying to instanciate a constant NSString by concatanating other NSString instances.

Here is what I\'m doing in my implementation file :

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Answer 1

I think you need to step back and think about if the string needs to be defined as a const.

Clearly the string isn't a constant since you are trying to assign a new value to it - and that is not possible since you specifically instructed the compiler to make sure the value wasn't changed by using the const keyword.

If the string resides as a property in a class you could make it a read-only property - i.e. accessor method but no setter method. You would then be able to construct your string as you wish in the class internally while keeping the callers from changing the value.