Get items from seq traits in Scala

Question

I'm looking for an elegant way to get elements by generated array consisting of indices

create a seq

val nums = Seq(1, 2, 3, 4, 5, 7, 9, 11, 14, 12, 16)

create a slice

val i = Array.range(2, 10, 3) Array[Int] = Array(2, 5, 8)

How to get 3, 7, 14 from Seq?

KacperFKorban · Answer

If I understood correctly, you want to pick elements from nums corresponding to indexes from i.

The most elegant way I can think of it:

i.map(nums.apply)