A modern programming language that makes developers happier.

kotlinlang

<https://discuss.kotlinlang.org/t/newbie-question-issue-with-how-kotlin-unit-works-when-using-map/26378|Newbie question : issue with how kotlin.Unit works when using map>
Hi there!
Sorry if the questions sounds stupid, but I am new to Kotlin.
fun test() {
   val parameters = listOf("val1", "val2", "val3")
   parameters.map { println(it) }
   println(parameters)
}

Output is :
val1
val2
val3
[val1, val2, val3]

But I was expecting :
val1
val2
val3
[kotlin.Unit, kotlin.Unit, kotlin.Unit]

Since the return value of the “println” function is kotlin.Unit, I don’t understand why the values of “parameters” are not altered by the map operation… So in that case what is...