How to populate an array in a function?

Question

Swift

There is an array var Array =[String]() there is a function DownloadData() The array (self.Array.append(var)) should be filled in the function, but it is not filled. I output the array after the function is executed, it is empty. Why and how to fix this
? not applicable function returns nothing

Answer 1

I still recommend reading the book on Swift, where you will find answers to many questions.

Answer 2

Use inout parameters. But that's pretty bad manners. The return value option is much better. And you can always return a tuple (tuple)

Answer 3

The question was not asked correctly ... even, I would say, idiotically.
Rewrite the question (judging by your post above, you need to figure out how asynchronous threads work). But to do this, determine what you do not understand.