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iOS Swift Closures Functions as First Class Citizens Higher Order Functions

Josh Bradford
Josh Bradford
9,935 Points
Posted by Josh Bradford
Josh Bradford
9,935 Points

Help with code Challenge!

I can't seem to figure out how to get this code working right? Can anyone help? The directions seem a little too vague I guess. Thanks in advance.

higherOrderFunctions.swift 
/** 
  For this code challenge, let’s define a math operation as a function that 
  carries out some work on two integers and returns an integer as well. An 
  example is the function below, `differenceBetweenNumbers`, which takes two 
  integers and calculates the difference between the numbers. After calculating, 
  it returns the difference.
*/

func differenceBetweenNumbers(a: Int, b:Int) -> (Int) {
  return a - b
}

// Enter your code below

1 Answer

Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points
Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points

Please refer to following link: https://teamtreehouse.com/community/im-having-trouble-with-the-calling-a-function-with-a-function-argument-i-have-reviewed-the-documentation-for-swift