XCode, Swift: Expressions are not allowed at the top level

Question

import UIKit

class MarksStruct {
    var mark: Int
    init(mark: Int) {
        self.mark = mark
    }
}

class studentMarks {
    var mark = 300
}

let marks = studentMarks()
print("Mark is \(marks.mark)")  //Expressions are not allowed at the top level

Anyone know why I get the error on the last line "Expressions are not allowed at the top level" and how do I fix it?

@Valysar your code should be inside a method of your view controller — Leo Dabus, Jun 14 '18 at 12:20

score 4 · Answer 1 · answered Jun 14 '18 at 12:18

4

Your code will work in the playground, but it can not work in a normal project. Move this code to a separate function and call it when needed.

let marks = studentMarks()
print("Mark is \(marks.mark)")

answered Jun 14 '18 at 12:18

ViR

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XCode, Swift: Expressions are not allowed at the top level

1 Answers1