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mapIndexed

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
inline fun <T, R> Array<out T>.mapIndexed(
    transform: (index: Int, T) -> R
): List<R>
inline fun <R> ByteArray.mapIndexed(
    transform: (index: Int, Byte) -> R
): List<R>
inline fun <R> ShortArray.mapIndexed(
    transform: (index: Int, Short) -> R
): List<R>
inline fun <R> IntArray.mapIndexed(
    transform: (index: Int, Int) -> R
): List<R>
inline fun <R> LongArray.mapIndexed(
    transform: (index: Int, Long) -> R
): List<R>
inline fun <R> FloatArray.mapIndexed(
    transform: (index: Int, Float) -> R
): List<R>
inline fun <R> DoubleArray.mapIndexed(
    transform: (index: Int, Double) -> R
): List<R>
inline fun <R> BooleanArray.mapIndexed(
    transform: (index: Int, Boolean) -> R
): List<R>
inline fun <R> CharArray.mapIndexed(
    transform: (index: Int, Char) -> R
): List<R>
@ExperimentalUnsignedTypes inline fun <R> UIntArray.mapIndexed(
    transform: (index: Int, UInt) -> R
): List<R>
@ExperimentalUnsignedTypes inline fun <R> ULongArray.mapIndexed(
    transform: (index: Int, ULong) -> R
): List<R>
@ExperimentalUnsignedTypes inline fun <R> UByteArray.mapIndexed(
    transform: (index: Int, UByte) -> R
): List<R>
@ExperimentalUnsignedTypes inline fun <R> UShortArray.mapIndexed(
    transform: (index: Int, UShort) -> R
): List<R>

Returns a list containing the results of applying the given transform function to each element and its index in the original array.

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.

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
inline fun <T, R> Iterable<T>.mapIndexed(
    transform: (index: Int, T) -> R
): List<R>

Returns a list containing the results of applying the given transform function to each element and its index in the original collection.

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.

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/map-indexed.html