Instance member cannot be used on type of custom class

Question

I have a classe named \"whisky builder\" which only initiates the new Whisky. Now i would like to add the new added whiskies in my \"WhiskyOverViewController\". But I face t

Answer 1

The two types must be incompatible with each other. Just like you cannot assign a UIImage to a String, your program won't let you assign a [WhiskyBuilder] array type to a WhiskyOverViewController type. You must have declared stringArray globally, because otherwise Swift would infer its type.

Answer 2

What you need there is a read only computed property:

var stringArray: [String] { 
    return whiskyArray.map{$0.whiskyName!} 
}

Answer 3

You need to move this code to a function:

let stringArray = whiskyArray.map({$0.whiskyName!})