How do you define an array of funs(functions) in Kotlin?

Question

This is my assumption of how it would be done...

this.funs = arrayOf : Unit(
    this::openCamera,
    this::sendSMS,
    this::makeCall
        )

How would I invoke each array item as a function at runtime? Would simply specifying 'funs' in place of either openCamera(), sendSMS(), and MakeCall() in a forEach() loop work?

or.. is this the way that I would invoke each function:

val function = getFunction(funs)
function()

user_4413098 · Answer

If you had some functions defined as

fun one()   { print("ONE") }
fun two()   { print("TWO") }
fun three() { print("THREE") }

Then you can create an array of these as

fun someFun(){
    val arrayOfFunctions: Array<() -> Unit> = arrayOf(::one, ::two, ::three)
    arrayOfFunctions.forEach { function ->
       function()
    }
}

How do you define an array of funs(functions) in Kotlin?

1 Answers