modify an array within a function does not work

Question

I call a function to process and modify an array. But the array does not change at all. Looks like a Swift major bug ???

var Draw_S = [String]();
var Draw_E =          


        

Answer 1

Both String and Array are value types in Swift. That is the reason why it is not modified inside a method. You would need to return the modified array back from the method.