getOrElse

Common
JVM
JS
Native
1.2
inline fun <T> Array<out T>.getOrElse(
    index: Int,
    defaultValue: (Int) -> T
): T
inline fun ByteArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Byte
): Byte
inline fun ShortArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Short
): Short
inline fun IntArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Int
): Int
inline fun LongArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Long
): Long
inline fun FloatArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Float
): Float
inline fun DoubleArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Double
): Double
inline fun BooleanArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Boolean
): Boolean
inline fun CharArray.getOrElse(
    index: Int,
    defaultValue: (Int) -> Char
): Char

Returns an element at the given index or the result of calling the defaultValue function if the index is out of bounds of this array.

Common
JVM
JS
Native
1.2
inline fun <T> List<T>.getOrElse(
    index: Int,
    defaultValue: (Int) -> T
): T

Returns an element at the given index or the result of calling the defaultValue function if the index is out of bounds of this list.

Common
JVM
JS
Native
1.2
inline fun <K, V> Map<K, V>.getOrElse(
    key: K,
    defaultValue: () -> V
): V

Returns the value for the given key, or the result of the defaultValue function if there was no entry for the given key.

import kotlin.test.*
import java.util.*

fun main(args: Array<String>) {
//sampleStart
val map = mutableMapOf<String, Int?>()
println(map.getOrElse("x") { 1 }) // 1

map["x"] = 3
println(map.getOrElse("x") { 1 }) // 3

map["x"] = null
println(map.getOrElse("x") { 1 }) // 1
//sampleEnd
}