W3cubDocs

/Kotlin

mapIndexedNotNull

fun <T, R : Any> Sequence<T>.mapIndexedNotNull(
    transform: (index: Int, T) -> R?
): Sequence<R>

Returns a sequence containing only the non-null results of applying the given transform function to each element and its index in the original sequence.

Parameters

transform -

function that takes the index of an element and the element itself and returns the result of the transform applied to the element.

The operation is intermediate and stateless.

© 2010–2017 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/map-indexed-not-null.html