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Start your free trialTim Polehn
7,461 PointsI can make this code work on Xcode but it will not work on your test what am I missing?
// Enter your code below
func mathOperation(mathoporation: ((Int), (Int)) -> (Int), x:(Int), y:(Int)) -> (Int){ return mathoporation(x, y) }
let x: (Int) = 5 let y: (Int) = 7 let difference = mathOperation(differenceBetweenNumbers, x, y)
/**
For this code challenge, letβs 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
func mathOperation(mathoporation: ((Int), (Int)) -> (Int), x:(Int), y:(Int)) -> (Int){
return mathoporation(x, y)
}
let x: (Int) = 5
let y: (Int) = 7
let difference = mathOperation(differenceBetweenNumbers, x, y)
1 Answer
Jhoan Arango
14,575 PointsHello Tim:
Out of curiosity, is there any particular reason why you are putting parenthesis in all the Int Types ?
I ask you this, because I have seen it done before, and I am wondering if thatβs coming from another language, or Objective-C.
Try the code below, this might let you pass the challenge.
func mathOperation(mathoporation: (Int, Int) -> Int, x: Int, y: Int) -> Int {
return mathoporation(x, y)
}
let difference = mathOperation(differenceBetweenNumbers, 7, 5)