Lambdas and it uses

Lambdas :- (High level Function)

can accept function as Parameter

can return Function as Parameter

or can do both

fun main(args : Array<String>)

{

    var addy : (Int,Int) -> Int = {x,y ->x+y}

    var a = show()

     a.see(7,8,addy)    //all  3 are same

    a.see(10,20,{x,y ->x+y})

    a.see(45,73) {x,y ->x+y}

}

class show

{

    fun see(a:Int,b:Int,action:(Int,Int)->Int)

    {

        var result = action(a,b)

        println(result)

    }

}

It :-

Implicit name of Single Parameter

fun main(args:Array<String>)

{

val program = Program()

program.reverseanddisplay("Hello,{it.reversed()})   //use of it

}

class Program(str : String, myFunc : (String) -> String) {

var result = myFunc(str)

println(result) }}