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iOS Closures in Swift First Class Functions Functions as First Class Citizens

Robert Hand
PLUS
Robert Hand
Courses Plus Student 2,657 Points
Posted by Robert Hand
Robert Hand
Courses Plus Student 2,657 Points

Closures in Swift 3 - Need Help

Challenge Task 1 of 2

Write a function named addTwo that accepts an Int, adds the value 2 to it and returns the resulting integer. Name the external argument label to. Note: This task doesn't require that you call the function yet.

This is my code:

func addTwo(to: Int + 2) -> Int

Not sure what to do from here...

functions.swift 
// Enter your code below

func addTwo(Int + 2) -> Int

1 Answer

landonferrier
landonferrier
25,097 Points

Robert,

Here is the code that I used that passed challenges one & two: 

func addTwo(to: Int) -> Int {
    return to + 2
}

let addition = addTwo
let result = addition(6)

From part one of the challenge, it appears that you did not add the curly brackets and return functionality.

If you have any questions, feel free to ask!