closure in swift

Closure is nuts!

Try run this code, and you will know what I am talking about

typealias IntegerFunction = Int -> ()

func  gamCounterSample() -> Int -> Void {

    func increment(i: Int){

        print("Integer passed in: \(i)")

    }

    return increment

}

func  gameCounter() -> IntegerFunction {

    var counter = 0

    

    func increment(i : Int){

        counter += i

        print("Counter value \(counter)")

    }

    

    return increment

}

let aCounter = gameCounter()

aCounter

aCounter(1)

aCounter(1)