higher_order_function_day_6

// ********example via String
fun main() {
myFunction("Hi",::justShow)
}

fun myFunction(name:String, myFunc:(String)->Unit){ // must be ->, because differ from regular function declaration
println("It is an example of higher order function")
}
fun justShow(firstName:String):Unit{
}

//************same but more details
fun main() {
    myFunction("Hi",::justShow)
}

fun myFunction(name:String, myFunc:(String)->Unit){ // must be ->, because differ from regular function declaration
    println("$name, It is an example of higher order function")
    justShow("Now")
}
fun justShow(firstName:String):Unit{
    println("$firstName, It's my call")
}


// ********example via Int
fun main() {
myFunction(5,::justShow)
}

fun myFunction(number: Int,unused:(Int,Int)->Int){
    println(justShow(7,9))
    println("$number")
    println(justShow(72,5))
}
fun justShow(number:Int, firstNumber: Int):Int=number+firstNumber