lastOrNull

Common
JVM
JS
Native
1.7
fun IntProgression.lastOrNull(): Int?
(source)
fun LongProgression.lastOrNull(): Long?
(source)
fun CharProgression.lastOrNull(): Char?
(source)
fun UIntProgression.lastOrNull(): UInt?
(source)
fun ULongProgression.lastOrNull(): ULong?
(source)

Returns the last element, or null if the progression is empty.

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
val list = listOf(1, 2, 3, 4)
println(list.last()) // 4
println(list.last { it % 2 == 1 }) // 3
println(list.lastOrNull { it < 0 }) // null
// list.last { it < 0 } //  will fail

val emptyList = emptyList<Int>()
println(emptyList.lastOrNull()) // null
// emptyList.last() //  will fail
//sampleEnd
}