fun <T> Sequence<T>.elementAtOrNull(index: Int): T?
Returns an element at the given index or null 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.elementAtOrNull(0)) // 1
println(list.elementAtOrNull(2)) // 3
println(list.elementAtOrNull(3)) // null
val emptyList = emptyList<Int>()
println(emptyList.elementAtOrNull(0)) // null
//sampleEnd
}
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https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/element-at-or-null.html