How do I convert a `List<Int>` to an `IntArray` (not `Array<Int>`)?

# getting-started

[Lukasz Kalnik]

How do I convert a List<Int> to an IntArray (not Array<Int>)?

[Joffrey]

list.toIntArray() ?
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/to-int-array.html

[Lukasz Kalnik]

Ah, I was wondering why it doesn't show up in code completion. But I had a Map<Int, Int> which I converted using toList() and it's obviously a List<Pair<Int, Int>>.
So I first have to map it to list of the map's keys (for example) 🤦

[Lukasz Kalnik]

Thanks for the hint though!

[gildor]

map.keys.toIntArray() should do the trick

[Lukasz Kalnik]

Thanks!