kotlin-stdlib/kotlin.collections/mapIndexed

mapIndexed

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

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

Since Kotlin

1.0

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.

inline fun <T, R> Iterable<T>.mapIndexed(transform: (index: Int, T) -> R): List<R>(source)

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

Since Kotlin

1.0

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.

@ExperimentalUnsignedTypes
inline fun <R> UIntArray.mapIndexed(transform: (index: Int, UInt) -> R): List<R>(source)
@ExperimentalUnsignedTypes
inline fun <R> ULongArray.mapIndexed(transform: (index: Int, ULong) -> R): List<R>(source)
@ExperimentalUnsignedTypes
inline fun <R> UByteArray.mapIndexed(transform: (index: Int, UByte) -> R): List<R>(source)
@ExperimentalUnsignedTypes
inline fun <R> UShortArray.mapIndexed(transform: (index: Int, UShort) -> R): List<R>(source)

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

Since Kotlin

1.3

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.