partition
inline fun ShortArray.partition(
predicate: (Short) -> Boolean
): Pair<List<Short>, List<Short>>(source)
inline fun FloatArray.partition(
predicate: (Float) -> Boolean
): Pair<List<Float>, List<Float>>(source)
inline fun DoubleArray.partition(
predicate: (Double) -> Boolean
): Pair<List<Double>, List<Double>>(source)
inline fun BooleanArray.partition(
predicate: (Boolean) -> Boolean
): Pair<List<Boolean>, List<Boolean>>(source)
Splits the original array into pair of lists,
where first list contains elements for which predicate yielded true,
while second list contains elements for which predicate yielded false.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val array = intArrayOf(1, 2, 3, 4, 5)
val (even, odd) = array.partition { it % 2 == 0 }
println(even) // [2, 4]
println(odd) // [1, 3, 5]
//sampleEnd
}Splits the original collection into pair of lists,
where first list contains elements for which predicate yielded true,
while second list contains elements for which predicate yielded false.
fun main(args: Array<String>) {
//sampleStart
data class Person(val name: String, val age: Int) {
override fun toString(): String {
return "$name - $age"
}
}
val list = listOf(Person("Tom", 18), Person("Andy", 32), Person("Sarah", 22))
val result = list.partition { it.age < 30 }
println(result) // ([Tom - 18, Sarah - 22], [Andy - 32])
//sampleEnd
}