<@U6PL0SPNH> Something like this? ``` val filtered...

# announcements

[Ruckus]

@lab Something like this?

val filtered = (0..list.lastIndex).asSequence()
    .filter { it in indexes }
    .map(list::get)
    .toList()

(I haven't tested it)

[karelpeeters]

If you don't care about order val result = set.map { list[it] }.toList() also works.

[Ruckus]

Very true, and it looks a lot nicer. I've always felt using mapping functions on int ranges looks dirty.

[karelpeeters]

And if you do care about order there's also this: set.toList().sort().map { list[it] }. Everything to avoid int ranges!