inline fun <T> Array<out T>.all( predicate: (T) -> Boolean ): Boolean
inline fun ByteArray.all( predicate: (Byte) -> Boolean ): Boolean
inline fun ShortArray.all( predicate: (Short) -> Boolean ): Boolean
inline fun IntArray.all(predicate: (Int) -> Boolean): Boolean
inline fun LongArray.all( predicate: (Long) -> Boolean ): Boolean
inline fun FloatArray.all( predicate: (Float) -> Boolean ): Boolean
inline fun DoubleArray.all( predicate: (Double) -> Boolean ): Boolean
inline fun BooleanArray.all( predicate: (Boolean) -> Boolean ): Boolean
inline fun CharArray.all( predicate: (Char) -> Boolean ): Boolean
inline fun <T> Iterable<T>.all( predicate: (T) -> Boolean ): Boolean
Returns true if all elements match 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.all { isEven(it) } is ${zeroToTen.all { isEven(it) }}") // false
println("zeroToTen.all(isEven) is ${zeroToTen.all(isEven)}") // false
val evens = zeroToTen.map { it * 2 }
println("evens.all { isEven(it) } is ${evens.all { isEven(it) }}") // true
val emptyList = emptyList<Int>()
println("emptyList.all { false } is ${emptyList.all { false }}") // true
//sampleEnd
}inline fun <K, V> Map<out K, V>.all( predicate: (Entry<K, V>) -> Boolean ): Boolean
Returns true if all entries match 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.all { isEven(it) } is ${zeroToTen.all { isEven(it) }}") // false
println("zeroToTen.all(isEven) is ${zeroToTen.all(isEven)}") // false
val evens = zeroToTen.map { it * 2 }
println("evens.all { isEven(it) } is ${evens.all { isEven(it) }}") // true
val emptyList = emptyList<Int>()
println("emptyList.all { false } is ${emptyList.all { false }}") // true
//sampleEnd
}
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/all.html