mapIndexed

Common
JVM
JS
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>

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.

Common
JVM
JS
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.