filterTo
inline fun <C : Appendable> CharSequence.filterTo(destination: C, predicate: (Char) -> Boolean): C(source)
Appends all characters matching the given predicate to the given destination.
Since Kotlin
1.0Samples
import kotlin.test.*
fun main() {
//sampleStart
val numbers: List<Int> = listOf(1, 2, 3, 4, 5, 6, 7)
val evenNumbers = mutableListOf<Int>()
val notMultiplesOf3 = mutableListOf<Int>()
println(evenNumbers) // []
numbers.filterTo(evenNumbers) { it % 2 == 0 }
numbers.filterNotTo(notMultiplesOf3) { number -> number % 3 == 0 }
println(evenNumbers) // [2, 4, 6]
println(notMultiplesOf3) // [1, 2, 4, 5, 7]
//sampleEnd
}