Kotlin Programming Cookbook

How to do it...

Let's go through the following steps, where we demonstrate how to pass a variable number of arguments to a function:

1. Using vararg, we can pass comma-separated arguments to a function, where we have defined the single argument to a method as vararg, as in the following example:

fun main(args: Array<String>) {    someMethod("as","you","know","this","works")}fun someMethod(vararg a: String) {    for (a_ in a) {        println(a_)    }}

2. Also, if you already have an array of values, you can directly pass it using the * spread operator:

fun main(args: Array<String>) {    val list = arrayOf("as","you","know","this","works")    someMethod(*list)}fun someMethod(vararg a: String) {    for (a_ in a) {        println(a_)    }}

So basically, vararg tells the compiler ...