Docs and samples for 'chunked' function
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@@ -1798,11 +1798,34 @@ public fun <T : Any> List<T?>.requireNoNulls(): List<T> {
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return this as List<T>
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}
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/**
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* Splits this collection into a list of lists each not exceeding the given [size].
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*
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* The last list in the resulting list may have less elements than the given [size].
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*
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* @param size the number of elements to take in each list, must be positive and can be greater than the number of elements in this collection.
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*
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* @sample samples.collections.Collections.Transformations.chunked
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*/
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@SinceKotlin("1.2")
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public fun <T> Iterable<T>.chunked(size: Int): List<List<T>> {
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return windowed(size, size)
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}
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/**
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* Splits this collection into several lists each not exceeding the given [size]
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* and applies the given [transform] function to an each.
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*
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* @return list of results of the [transform] applied to an each list.
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*
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* Note that the list passed to the [transform] function is ephemeral and is valid only inside that function.
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* You should not store it or allow it escape someway, unless you made a snapshot of it.
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* The last list may have less elements than the given [size].
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*
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* @param size the number of elements to take in each list, must be positive and can be greater than the number of elements in this collection.
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*
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* @sample samples.text.Strings.chunkedTransform
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*/
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@SinceKotlin("1.2")
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public fun <T, R> Iterable<T>.chunked(size: Int, transform: (List<T>) -> R): List<R> {
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return windowed(size, size, transform)
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@@ -1331,11 +1331,38 @@ public fun <T : Any> Sequence<T?>.requireNoNulls(): Sequence<T> {
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return map { it ?: throw IllegalArgumentException("null element found in $this.") }
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}
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/**
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* Splits this sequence into a sequence of lists each not exceeding the given [size].
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*
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* The last list in the resulting sequence may have less elements than the given [size].
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*
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* @param size the number of elements to take in each list, must be positive and can be greater than the number of elements in this sequence.
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*
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* @sample samples.collections.Collections.Transformations.chunked
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*
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* The operation is _intermediate_ and _stateful_.
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*/
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@SinceKotlin("1.2")
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public fun <T> Sequence<T>.chunked(size: Int): Sequence<List<T>> {
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return windowed(size, size)
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}
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/**
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* Splits this sequence into several lists each not exceeding the given [size]
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* and applies the given [transform] function to an each.
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*
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* @return sequence of results of the [transform] applied to an each list.
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*
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* Note that the list passed to the [transform] function is ephemeral and is valid only inside that function.
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* You should not store it or allow it escape someway, unless you made a snapshot of it.
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* The last list may have less elements than the given [size].
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*
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* @param size the number of elements to take in each list, must be positive and can be greater than the number of elements in this sequence.
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*
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* @sample samples.text.Strings.chunkedTransform
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*
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* The operation is _intermediate_ and _stateful_.
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*/
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@SinceKotlin("1.2")
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public fun <T, R> Sequence<T>.chunked(size: Int, transform: (List<T>) -> R): Sequence<R> {
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return windowed(size, size, transform)
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@@ -1110,21 +1110,67 @@ public inline fun CharSequence.sumByDouble(selector: (Char) -> Double): Double {
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return sum
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}
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/**
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* Splits this char sequence into a list of strings each not exceeding the given [size].
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*
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* The last string in the resulting list may have less characters than the given [size].
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*
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* @param size the number of elements to take in each string, must be positive and can be greater than the number of elements in this char sequence.
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*
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* @sample samples.collections.Collections.Transformations.chunked
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*/
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@SinceKotlin("1.2")
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public fun CharSequence.chunked(size: Int): List<String> {
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return windowed(size, size)
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}
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/**
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* Splits this char sequence into several char sequences each not exceeding the given [size]
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* and applies the given [transform] function to an each.
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*
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* @return list of results of the [transform] applied to an each char sequence.
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*
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* Note that the char sequence passed to the [transform] function is ephemeral and is valid only inside that function.
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* You should not store it or allow it escape someway, unless you made a snapshot of it.
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* The last char sequence may have less characters than the given [size].
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*
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* @param size the number of elements to take in each char sequence, must be positive and can be greater than the number of elements in this char sequence.
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*
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* @sample samples.text.Strings.chunkedTransform
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*/
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@SinceKotlin("1.2")
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public fun <R> CharSequence.chunked(size: Int, transform: (CharSequence) -> R): List<R> {
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return windowed(size, size, transform)
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}
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/**
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* Splits this char sequence into a sequence of strings each not exceeding the given [size].
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*
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* The last string in the resulting sequence may have less characters than the given [size].
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*
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* @param size the number of elements to take in each string, must be positive and can be greater than the number of elements in this char sequence.
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*
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* @sample samples.collections.Collections.Transformations.chunked
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*/
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@SinceKotlin("1.2")
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public fun CharSequence.chunkedSequence(size: Int): Sequence<String> {
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return chunkedSequence(size) { it.toString() }
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}
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/**
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* Splits this char sequence into several char sequences each not exceeding the given [size]
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* and applies the given [transform] function to an each.
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*
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* @return sequence of results of the [transform] applied to an each char sequence.
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*
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* Note that the char sequence passed to the [transform] function is ephemeral and is valid only inside that function.
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* You should not store it or allow it to escape someway, unless you made a snapshot of it.
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* The last char sequence may have less characters than the given [size].
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*
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* @param size the number of elements to take in each char sequence, must be positive and can be greater than the number of elements in this char sequence.
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*
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* @sample samples.text.Strings.chunkedTransformToSequence
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*/
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@SinceKotlin("1.2")
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public fun <R> CharSequence.chunkedSequence(size: Int, transform: (CharSequence) -> R): Sequence<R> {
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return windowedSequence(size, size, transform)
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