kotlin-stdlib/kotlin.ranges/lastOrNull

lastOrNull

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.

Since Kotlin

1.7

Samples

import kotlin.test.*

fun main() { 
   //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
}