fun <T> Array<out T>.any(): Boolean
fun ByteArray.any(): Boolean
fun ShortArray.any(): Boolean
fun IntArray.any(): Boolean
fun LongArray.any(): Boolean
fun FloatArray.any(): Boolean
fun DoubleArray.any(): Boolean
fun BooleanArray.any(): Boolean
fun CharArray.any(): Boolean
@ExperimentalUnsignedTypes fun UIntArray.any(): Boolean
@ExperimentalUnsignedTypes fun ULongArray.any(): Boolean
@ExperimentalUnsignedTypes fun UByteArray.any(): Boolean
@ExperimentalUnsignedTypes fun UShortArray.any(): Boolean
Returns true
if array has at least one element.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val emptyList = emptyList<Int>()
println("emptyList.any() is ${emptyList.any()}") // false
val nonEmptyList = listOf(1, 2, 3)
println("nonEmptyList.any() is ${nonEmptyList.any()}") // true
//sampleEnd
}
inline fun <T> Array<out T>.any( predicate: (T) -> Boolean ): Boolean
inline fun ByteArray.any( predicate: (Byte) -> Boolean ): Boolean
inline fun ShortArray.any( predicate: (Short) -> Boolean ): Boolean
inline fun IntArray.any(predicate: (Int) -> Boolean): Boolean
inline fun LongArray.any( predicate: (Long) -> Boolean ): Boolean
inline fun FloatArray.any( predicate: (Float) -> Boolean ): Boolean
inline fun DoubleArray.any( predicate: (Double) -> Boolean ): Boolean
inline fun BooleanArray.any( predicate: (Boolean) -> Boolean ): Boolean
inline fun CharArray.any( predicate: (Char) -> Boolean ): Boolean
inline fun <T> Iterable<T>.any( predicate: (T) -> Boolean ): Boolean
@ExperimentalUnsignedTypes inline fun UIntArray.any( predicate: (UInt) -> Boolean ): Boolean
@ExperimentalUnsignedTypes inline fun ULongArray.any( predicate: (ULong) -> Boolean ): Boolean
@ExperimentalUnsignedTypes inline fun UByteArray.any( predicate: (UByte) -> Boolean ): Boolean
@ExperimentalUnsignedTypes inline fun UShortArray.any( predicate: (UShort) -> Boolean ): Boolean
Returns true
if at least one element matches the given predicate.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val isEven: (Int) -> Boolean = { it % 2 == 0 }
val zeroToTen = 0..10
println("zeroToTen.any { isEven(it) } is ${zeroToTen.any { isEven(it) }}") // true
println("zeroToTen.any(isEven) is ${zeroToTen.any(isEven)}") // true
val odds = zeroToTen.map { it * 2 + 1 }
println("odds.any { isEven(it) } is ${odds.any { isEven(it) }}") // false
val emptyList = emptyList<Int>()
println("emptyList.any { true } is ${emptyList.any { true }}") // false
//sampleEnd
}
fun <T> Iterable<T>.any(): Boolean
Returns true
if collection has at least one element.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val emptyList = emptyList<Int>()
println("emptyList.any() is ${emptyList.any()}") // false
val nonEmptyList = listOf(1, 2, 3)
println("nonEmptyList.any() is ${nonEmptyList.any()}") // true
//sampleEnd
}
fun <K, V> Map<out K, V>.any(): Boolean
Returns true
if map has at least one entry.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val emptyList = emptyList<Int>()
println("emptyList.any() is ${emptyList.any()}") // false
val nonEmptyList = listOf(1, 2, 3)
println("nonEmptyList.any() is ${nonEmptyList.any()}") // true
//sampleEnd
}
inline fun <K, V> Map<out K, V>.any( predicate: (Entry<K, V>) -> Boolean ): Boolean
Returns true
if at least one entry matches the given predicate.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val isEven: (Int) -> Boolean = { it % 2 == 0 }
val zeroToTen = 0..10
println("zeroToTen.any { isEven(it) } is ${zeroToTen.any { isEven(it) }}") // true
println("zeroToTen.any(isEven) is ${zeroToTen.any(isEven)}") // true
val odds = zeroToTen.map { it * 2 + 1 }
println("odds.any { isEven(it) } is ${odds.any { isEven(it) }}") // false
val emptyList = emptyList<Int>()
println("emptyList.any { true } is ${emptyList.any { true }}") // false
//sampleEnd
}
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/any.html