18032019_5

import Foundation

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

var addFunc: (Int, Int)->Int = { x,y in
    return x + y
}

print(addFunc(5,2))
print(doMathA(a:5,b:8))


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

var result = doMath(action:addFunc ,a:3 ,b:7)
print(result)

result = doMath(action:{ x, y in
    return x - y
} ,a:3 ,b:5)
print(result)

result = doMath(action:{ x, y in
    return x * 10 +  y
} ,a:3 ,b:5)
print(result)