Setting an array to another array

Question

apologies if this has been asked multiple times but I haven't managed to find an answer.

If I have an NSArray called array1, is there any difference between these 2 methods:

NSArray *array2 = [NSArray alloc] initWithArray:array1];

and:

NSArray * array2 = array1;

Thanks

Answer 1

Yes.

The first creates a new array.

Te seconds creates a new reference to the original array.