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filterIndexed

inline fun <T> Iterable<T>.filterIndexed(
    predicate: (index: Int, T) -> Boolean
): List<T>
inline fun <T> Array<out T>.filterIndexed(
    predicate: (index: Int, T) -> Boolean
): List<T>
inline fun ByteArray.filterIndexed(
    predicate: (index: Int, Byte) -> Boolean
): List<Byte>
inline fun ShortArray.filterIndexed(
    predicate: (index: Int, Short) -> Boolean
): List<Short>
inline fun IntArray.filterIndexed(
    predicate: (index: Int, Int) -> Boolean
): List<Int>
inline fun LongArray.filterIndexed(
    predicate: (index: Int, Long) -> Boolean
): List<Long>
inline fun FloatArray.filterIndexed(
    predicate: (index: Int, Float) -> Boolean
): List<Float>
inline fun DoubleArray.filterIndexed(
    predicate: (index: Int, Double) -> Boolean
): List<Double>
inline fun BooleanArray.filterIndexed(
    predicate: (index: Int, Boolean) -> Boolean
): List<Boolean>
inline fun CharArray.filterIndexed(
    predicate: (index: Int, Char) -> Boolean
): List<Char>

Returns a list containing only elements matching the given predicate.

Parameters

predicate - function that takes the index of an element and the element itself and returns the result of predicate evaluation on the element.

© 2010–2017 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/filter-indexed.html