Swift - How to mutate a struct object when iterating over it

Question

I am still not sure about the rules of struct copy or reference.

I want to mutate a struct object while iterating on it from an array: For instance in this case I wo

Answer 1

You can use use Array.indices:

for index in arrayOfMyStruct.indices {
    arrayOfMyStruct[index].backgroundColor = UIColor.red
}