filterIndexed
Returns a list containing only elements matching the given predicate.
inline fun <T> Array<out T>.filterIndexed(predicate: (index: Int, T) -> Boolean): List<T>(source)
fun main() {
val words = arrayOf("apple", "banana", "cherry", "date", "elderberry")
val filtered = words.filterIndexed { index, _ -> index % 2 == 0 }
println(filtered) // [apple, cherry, elderberry]
}