Check if optional array is empty

Question

In Objective-C, when I have an array

NSArray *array;

and I want to check if it is not empty, I always do:

if (array.count &         


        

Answer 1

Option D: If the array doesn't need to be optional, because you only really care if it's empty or not, initialise it as an empty array instead of an optional:

var array = [Int]()

Now it will always exist, and you can simply check for isEmpty.