filter
inline fun <T, C : MutableCollection<in T>> Sequence<T>.filterIndexedTo(destination: C, predicate: (index: Int, T) -> Boolean): C(source)
Appends all elements matching the given predicate to the given destination.
Samples
import kotlin.test.*
fun main() {
//sampleStart
val numbers: List<Int> = listOf(0, 1, 2, 3, 4, 8, 6)
val numbersOnSameIndexAsValue = mutableListOf<Int>()
println(numbersOnSameIndexAsValue) // []
numbers.filterIndexedTo(numbersOnSameIndexAsValue) { index, i -> index == i }
println(numbersOnSameIndexAsValue) // [0, 1, 2, 3, 4, 6]
//sampleEnd
}Parameters
predicate
function that takes the index of an element and the element itself and returns the result of predicate evaluation on the element.
The operation is terminal.