unzip

fun <T, R> Array<out Pair<T, R>>.unzip(): Pair<List<T>, List<R>> (source)

Returns a pair of lists, where first list is built from the first values of each pair from this array, second list is built from the second values of each pair from this array.



fun main(args: Array<String>) {
//sampleStart
val array = arrayOf(1 to 'a', 2 to 'b', 3 to 'c')
println(array.unzip()) // ([1, 2, 3], [a, b, c])
//sampleEnd
}
fun <T, R> Iterable<Pair<T, R>>.unzip(): Pair<List<T>, List<R>> (source)

Returns a pair of lists, where first list is built from the first values of each pair from this collection, second list is built from the second values of each pair from this collection.

import kotlin.coroutines.experimental.buildIterator

fun main(args: Array<String>) {
//sampleStart
val list = listOf(1 to 'a', 2 to 'b', 3 to 'c')
println(list.unzip()) // ([1, 2, 3], [a, b, c])
//sampleEnd
}