find

Common
JVM
JS
Native
1.0
inline fun <T> Array<out T>.find(
    predicate: (T) -> Boolean
): T?
inline fun ByteArray.find(
    predicate: (Byte) -> Boolean
): Byte?
inline fun ShortArray.find(
    predicate: (Short) -> Boolean
): Short?
inline fun IntArray.find(predicate: (Int) -> Boolean): Int?
inline fun LongArray.find(
    predicate: (Long) -> Boolean
): Long?
inline fun FloatArray.find(
    predicate: (Float) -> Boolean
): Float?
inline fun DoubleArray.find(
    predicate: (Double) -> Boolean
): Double?
inline fun BooleanArray.find(
    predicate: (Boolean) -> Boolean
): Boolean?
inline fun CharArray.find(
    predicate: (Char) -> Boolean
): Char?
inline fun <T> Iterable<T>.find(
    predicate: (T) -> Boolean
): T?
@ExperimentalUnsignedTypes inline fun UIntArray.find(
    predicate: (UInt) -> Boolean
): UInt?
@ExperimentalUnsignedTypes inline fun ULongArray.find(
    predicate: (ULong) -> Boolean
): ULong?
@ExperimentalUnsignedTypes inline fun UByteArray.find(
    predicate: (UByte) -> Boolean
): UByte?
@ExperimentalUnsignedTypes inline fun UShortArray.find(
    predicate: (UShort) -> Boolean
): UShort?

Returns the first element matching the given predicate, or null if no such element was found.

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
val numbers = listOf(1, 2, 3, 4, 5, 6, 7)
val firstOdd = numbers.find { it % 2 != 0 }
val lastEven = numbers.findLast { it % 2 == 0 }

println(firstOdd) // 1
println(lastEven) // 6
//sampleEnd
}