fun <T> Sequence<T>.elementAt(index: Int): T
Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this sequence.
The operation is terminal.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val list = listOf(1, 2, 3)
println(list.elementAt(0)) // 1
println(list.elementAt(2)) // 3
// list.elementAt(3) // will fail with IndexOutOfBoundsException
val emptyList = emptyList<Int>()
// emptyList.elementAt(0) // will fail with IndexOutOfBoundsException
//sampleEnd
}
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https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/element-at.html