I've got a

List<Int>

that I want to map over and do some calculations on. Since I'm learning Kotlin, I thought I'd try to do it two ways. This one works:

val foo: List<Int> = listOf(100, 200, 300)
foo.map { it / 3 - 2 } .forEach { println(it) }

However, I wanted to see what to do if I wanted to make a reusable transform function inside the

map

. So I tried this:

fun myMapFunc(it: Int): Int {
    return it / 3 - 2
}

val foo: List<Int> = listOf(100, 200, 300)
foo.map(myMapFunc).forEach { println(it) } // error

I already know I can fix it by doing this:

foo.map { myMapFunc(it) }

But I feel like the first way should work too... Why doesn't it?

it’s because unlike python and similar other languages, function references must be deliberately qualified in order to be passed as an argument or assigned to a variable

That works

So the way symbols work in Kotlin is kinda sorta similar to how it’s done in Java, which doesn’t treat methods or classes as first-class tokens

lol that was a great explanation thank you very much for the detailed answer