ios - Swift instance members & functions calls, could someone please clarify?

Question

I'm practicing functions in an Xcode project (not playground, if that matters) and when I set the constant's function name to the above function's name, Xcode won't let me call it.

In other functions I've done the same thing I haven't had this error, I don't know why it's being triggered. I've tried putting the "let fun" constant into it's own struct but that just throws up a different error.

Answer 1

Your let fun = playstation(... is code. It is an executable command. Code consisting of an executable command cannot just live anywhere. It cannot exist just free-floating the way you have it. It must live in a method. For example you could put it inside your viewDidLoad method.