kotlin-stdlib/kotlin/IntArray

IntArray

class IntArray(size: Int)(source)

An array of ints. When targeting the JVM, instances of this class are represented as int[].

Since Kotlin

1.0
class IntArray(source)

An array of ints. When targeting the JVM, instances of this class are represented as int[].

Since Kotlin

1.3

Constructors

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constructor(size: Int, init: (Int) -> Int)

Creates a new array of the specified size, where each element is calculated by calling the specified init function.

constructor(size: Int)

Creates a new array of the specified size, with all elements initialized to zero.

constructor(size: Int)
constructor(size: Int, init: (Int) -> Int)

Creates a new array of the specified size, where each element is calculated by calling the specified init function.

Properties

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val IntArray.indices: IntRange

Returns the range of valid indices for the array.

Since Kotlin 1.0
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val IntArray.lastIndex: Int

Returns the last valid index for the array.

Since Kotlin 1.0
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val size: Int

Returns the number of elements in the array.

Since Kotlin 1.0
val size: Int

Returns the number of elements in the array.

Since Kotlin 1.3

Functions

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inline fun IntArray.all(predicate: (Int) -> Boolean): Boolean

Returns true if all elements match the given predicate.

Since Kotlin 1.0
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fun IntArray.any(): Boolean

Returns true if array has at least one element.

Since Kotlin 1.0
inline fun IntArray.any(predicate: (Int) -> Boolean): Boolean

Returns true if at least one element matches the given predicate.

Since Kotlin 1.0
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fun IntArray.asIterable(): Iterable<Int>

Creates an Iterable instance that wraps the original array returning its elements when being iterated.

Since Kotlin 1.0
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expect fun IntArray.asList(): List<Int>

Returns a List that wraps the original array.

Since Kotlin 1.0
actual inline fun IntArray.asList(): List<Int>

Returns a List that wraps the original array.

Since Kotlin 1.1
actual fun IntArray.asList(): List<Int>

Returns a List that wraps the original array.

Since Kotlin 1.0
actual fun IntArray.asList(): List<Int>

Returns a List that wraps the original array.

Since Kotlin 1.3
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fun IntArray.asSequence(): Sequence<Int>

Creates a Sequence instance that wraps the original array returning its elements when being iterated.

Since Kotlin 1.0
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inline fun <K, V> IntArray.associate(transform: (Int) -> Pair<K, V>): Map<K, V>

Returns a Map containing key-value pairs provided by transform function applied to elements of the given array.

Since Kotlin 1.0
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inline fun <K> IntArray.associateBy(keySelector: (Int) -> K): Map<K, Int>

Returns a Map containing the elements from the given array indexed by the key returned from keySelector function applied to each element.

Since Kotlin 1.0
inline fun <K, V> IntArray.associateBy(keySelector: (Int) -> K, valueTransform: (Int) -> V): Map<K, V>

Returns a Map containing the values provided by valueTransform and indexed by keySelector functions applied to elements of the given array.

Since Kotlin 1.0
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inline fun <K, M : MutableMap<in K, in Int>> IntArray.associateByTo(destination: M, keySelector: (Int) -> K): M

Populates and returns the destination mutable map with key-value pairs, where key is provided by the keySelector function applied to each element of the given array and value is the element itself.

Since Kotlin 1.0
inline fun <K, V, M : MutableMap<in K, in V>> IntArray.associateByTo(destination: M, keySelector: (Int) -> K, valueTransform: (Int) -> V): M

Populates and returns the destination mutable map with key-value pairs, where key is provided by the keySelector function and and value is provided by the valueTransform function applied to elements of the given array.

Since Kotlin 1.0
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inline fun <K, V, M : MutableMap<in K, in V>> IntArray.associateTo(destination: M, transform: (Int) -> Pair<K, V>): M

Populates and returns the destination mutable map with key-value pairs provided by transform function applied to each element of the given array.

Since Kotlin 1.0
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inline fun <V> IntArray.associateWith(valueSelector: (Int) -> V): Map<Int, V>

Returns a Map where keys are elements from the given array and values are produced by the valueSelector function applied to each element.

Since Kotlin 1.4
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inline fun <V, M : MutableMap<in Int, in V>> IntArray.associateWithTo(destination: M, valueSelector: (Int) -> V): M

Populates and returns the destination mutable map with key-value pairs for each element of the given array, where key is the element itself and value is provided by the valueSelector function applied to that key.

Since Kotlin 1.4
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@ExperimentalUnsignedTypes
inline fun IntArray.asUIntArray(): UIntArray

Returns an array of type UIntArray, which is a view of this array where each element is an unsigned reinterpretation of the corresponding element of this array.

Since Kotlin 1.3
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fun IntArray.average(): Double

Returns an average value of elements in the array.

Since Kotlin 1.0
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fun IntArray.binarySearch(element: Int, fromIndex: Int = 0, toIndex: Int = size): Int

Searches the array or the range of the array for the provided element using the binary search algorithm. The array is expected to be sorted, otherwise the result is undefined.

Since Kotlin 1.0
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inline operator fun IntArray.component1(): Int

Returns 1st element from the array.

Since Kotlin 1.0
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inline operator fun IntArray.component2(): Int

Returns 2nd element from the array.

Since Kotlin 1.0
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inline operator fun IntArray.component3(): Int

Returns 3rd element from the array.

Since Kotlin 1.0
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inline operator fun IntArray.component4(): Int

Returns 4th element from the array.

Since Kotlin 1.0
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inline operator fun IntArray.component5(): Int

Returns 5th element from the array.

Since Kotlin 1.0
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operator fun IntArray.contains(element: Int): Boolean

Returns true if element is found in the array.

Since Kotlin 1.0
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expect infix fun IntArray.contentEquals(other: IntArray): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.1
expect infix fun IntArray?.contentEquals(other: IntArray?): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.4
actual infix fun IntArray.contentEquals(other: IntArray): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.1
actual infix fun IntArray?.contentEquals(other: IntArray?): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.4
actual infix inline fun IntArray.contentEquals(other: IntArray): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.1
@JvmName(name = "contentEqualsNullable")
actual infix inline fun IntArray?.contentEquals(other: IntArray?): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.4
actual infix fun IntArray.contentEquals(other: IntArray): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.3
actual infix fun IntArray?.contentEquals(other: IntArray?): Boolean

Returns true if the two specified arrays are structurally equal to one another, i.e. contain the same number of the same elements in the same order.

Since Kotlin 1.4
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expect fun IntArray.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.1
expect fun IntArray?.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.4
actual fun IntArray.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.1
actual fun IntArray?.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.4
actual inline fun IntArray.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.1
@JvmName(name = "contentHashCodeNullable")
actual inline fun IntArray?.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.4
actual fun IntArray.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.3
actual fun IntArray?.contentHashCode(): Int

Returns a hash code based on the contents of this array as if it is List.

Since Kotlin 1.4
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expect fun IntArray.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.1
expect fun IntArray?.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.4
actual fun IntArray.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.1
actual fun IntArray?.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.4
actual inline fun IntArray.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.1
@JvmName(name = "contentToStringNullable")
actual inline fun IntArray?.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.4
actual fun IntArray.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.3
actual fun IntArray?.contentToString(): String

Returns a string representation of the contents of the specified array as if it is List.

Since Kotlin 1.4
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expect fun IntArray.copyInto(destination: IntArray, destinationOffset: Int = 0, startIndex: Int = 0, endIndex: Int = size): IntArray

Copies this array or its subrange into the destination array and returns that array.

Since Kotlin 1.3
actual inline fun IntArray.copyInto(destination: IntArray, destinationOffset: Int = 0, startIndex: Int = 0, endIndex: Int = size): IntArray

Copies this array or its subrange into the destination array and returns that array.

Since Kotlin 1.3
actual fun IntArray.copyInto(destination: IntArray, destinationOffset: Int = 0, startIndex: Int = 0, endIndex: Int = size): IntArray

Copies this array or its subrange into the destination array and returns that array.

Since Kotlin 1.3
actual fun IntArray.copyInto(destination: IntArray, destinationOffset: Int = 0, startIndex: Int = 0, endIndex: Int = size): IntArray

Copies this array or its subrange into the destination array and returns that array.

Since Kotlin 1.3
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expect fun IntArray.copyOf(): IntArray

Returns new array which is a copy of the original array.

Since Kotlin 1.0
expect fun IntArray.copyOf(newSize: Int): IntArray

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

Since Kotlin 1.0
actual inline fun IntArray.copyOf(): IntArray

Returns new array which is a copy of the original array.

Since Kotlin 1.1
actual fun IntArray.copyOf(newSize: Int): IntArray

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

Since Kotlin 1.1
actual inline fun IntArray.copyOf(): IntArray

Returns new array which is a copy of the original array.

Since Kotlin 1.0
actual inline fun IntArray.copyOf(newSize: Int): IntArray

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

Since Kotlin 1.0
actual fun IntArray.copyOf(): IntArray

Returns new array which is a copy of the original array.

Since Kotlin 1.3
actual fun IntArray.copyOf(newSize: Int): IntArray

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

Since Kotlin 1.3
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expect fun IntArray.copyOfRange(fromIndex: Int, toIndex: Int): IntArray

Returns a new array which is a copy of the specified range of the original array.

Since Kotlin 1.0
actual fun IntArray.copyOfRange(fromIndex: Int, toIndex: Int): IntArray

Returns a new array which is a copy of the specified range of the original array.

Since Kotlin 1.1
@JvmName(name = "copyOfRangeInline")
actual inline fun IntArray.copyOfRange(fromIndex: Int, toIndex: Int): IntArray

Returns a new array which is a copy of the specified range of the original array.

Since Kotlin 1.0
actual fun IntArray.copyOfRange(fromIndex: Int, toIndex: Int): IntArray

Returns a new array which is a copy of the specified range of the original array.

Since Kotlin 1.3
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inline fun IntArray.count(): Int

Returns the number of elements in this array.

Since Kotlin 1.0
inline fun IntArray.count(predicate: (Int) -> Boolean): Int

Returns the number of elements matching the given predicate.

Since Kotlin 1.0
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fun IntArray.distinct(): List<Int>

Returns a list containing only distinct elements from the given array.

Since Kotlin 1.0
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inline fun <K> IntArray.distinctBy(selector: (Int) -> K): List<Int>

Returns a list containing only elements from the given array having distinct keys returned by the given selector function.

Since Kotlin 1.0
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fun IntArray.drop(n: Int): List<Int>

Returns a list containing all elements except first n elements.

Since Kotlin 1.0
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fun IntArray.dropLast(n: Int): List<Int>

Returns a list containing all elements except last n elements.

Since Kotlin 1.0
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inline fun IntArray.dropLastWhile(predicate: (Int) -> Boolean): List<Int>

Returns a list containing all elements except last elements that satisfy the given predicate.

Since Kotlin 1.0
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inline fun IntArray.dropWhile(predicate: (Int) -> Boolean): List<Int>

Returns a list containing all elements except first elements that satisfy the given predicate.

Since Kotlin 1.0
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expect fun IntArray.elementAt(index: Int): Int

Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this array.

Since Kotlin 1.0
actual fun IntArray.elementAt(index: Int): Int

Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this array.

Since Kotlin 1.1
actual inline fun IntArray.elementAt(index: Int): Int

Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this array.

Since Kotlin 1.0
actual inline fun IntArray.elementAt(index: Int): Int

Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this array.

Since Kotlin 1.3
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inline fun IntArray.elementAtOrElse(index: Int, defaultValue: (Int) -> Int): Int

Returns an element at the given index or the result of calling the defaultValue function if the index is out of bounds of this array.

Since Kotlin 1.0
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inline fun IntArray.elementAtOrNull(index: Int): Int?

Returns an element at the given index or null if the index is out of bounds of this array.

Since Kotlin 1.0
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expect fun IntArray.fill(element: Int, fromIndex: Int = 0, toIndex: Int = size)

Fills this array or its subrange with the specified element value.

Since Kotlin 1.3
actual fun IntArray.fill(element: Int, fromIndex: Int = 0, toIndex: Int = size)

Fills this array or its subrange with the specified element value.

Since Kotlin 1.3
actual fun IntArray.fill(element: Int, fromIndex: Int = 0, toIndex: Int = size)

Fills this array or its subrange with the specified element value.

Since Kotlin 1.0
actual fun IntArray.fill(element: Int, fromIndex: Int = 0, toIndex: Int = size)

Fills this array or its subrange with the specified element value.

Since Kotlin 1.3
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inline fun IntArray.filter(predicate: (Int) -> Boolean): List<Int>

Returns a list containing only elements matching the given predicate.

Since Kotlin 1.0
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inline fun IntArray.filterIndexed(predicate: (index: Int, Int) -> Boolean): List<Int>

Returns a list containing only elements matching the given predicate.

Since Kotlin 1.0
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inline fun <C : MutableCollection<in Int>> IntArray.filterIndexedTo(destination: C, predicate: (index: Int, Int) -> Boolean): C

Appends all elements matching the given predicate to the given destination.

Since Kotlin 1.0
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inline fun IntArray.filterNot(predicate: (Int) -> Boolean): List<Int>

Returns a list containing all elements not matching the given predicate.

Since Kotlin 1.0
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inline fun <C : MutableCollection<in Int>> IntArray.filterNotTo(destination: C, predicate: (Int) -> Boolean): C

Appends all elements not matching the given predicate to the given destination.

Since Kotlin 1.0
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inline fun <C : MutableCollection<in Int>> IntArray.filterTo(destination: C, predicate: (Int) -> Boolean): C

Appends all elements matching the given predicate to the given destination.

Since Kotlin 1.0
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inline fun IntArray.find(predicate: (Int) -> Boolean): Int?

Returns the first element matching the given predicate, or null if no such element was found.

Since Kotlin 1.0
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inline fun IntArray.findLast(predicate: (Int) -> Boolean): Int?

Returns the last element matching the given predicate, or null if no such element was found.

Since Kotlin 1.0
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fun IntArray.first(): Int

Returns the first element.

Since Kotlin 1.0
inline fun IntArray.first(predicate: (Int) -> Boolean): Int

Returns the first element matching the given predicate.

Since Kotlin 1.0
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fun IntArray.firstOrNull(): Int?

Returns the first element, or null if the array is empty.

Since Kotlin 1.0
inline fun IntArray.firstOrNull(predicate: (Int) -> Boolean): Int?

Returns the first element matching the given predicate, or null if element was not found.

Since Kotlin 1.0
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inline fun <R> IntArray.flatMap(transform: (Int) -> Iterable<R>): List<R>

Returns a single list of all elements yielded from results of transform function being invoked on each element of original array.

Since Kotlin 1.0
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@JvmName(name = "flatMapIndexedIterable")
inline fun <R> IntArray.flatMapIndexed(transform: (index: Int, Int) -> Iterable<R>): List<R>

Returns a single list of all elements yielded from results of transform function being invoked on each element and its index in the original array.

Since Kotlin 1.4
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@JvmName(name = "flatMapIndexedIterableTo")
inline fun <R, C : MutableCollection<in R>> IntArray.flatMapIndexedTo(destination: C, transform: (index: Int, Int) -> Iterable<R>): C

Appends all elements yielded from results of transform function being invoked on each element and its index in the original array, to the given destination.

Since Kotlin 1.4
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inline fun <R, C : MutableCollection<in R>> IntArray.flatMapTo(destination: C, transform: (Int) -> Iterable<R>): C

Appends all elements yielded from results of transform function being invoked on each element of original array, to the given destination.

Since Kotlin 1.0
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inline fun <R> IntArray.fold(initial: R, operation: (acc: R, Int) -> R): R

Accumulates value starting with initial value and applying operation from left to right to current accumulator value and each element.

Since Kotlin 1.0
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inline fun <R> IntArray.foldIndexed(initial: R, operation: (index: Int, acc: R, Int) -> R): R

Accumulates value starting with initial value and applying operation from left to right to current accumulator value and each element with its index in the original array.

Since Kotlin 1.0
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inline fun <R> IntArray.foldRight(initial: R, operation: (Int, acc: R) -> R): R

Accumulates value starting with initial value and applying operation from right to left to each element and current accumulator value.

Since Kotlin 1.0
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inline fun <R> IntArray.foldRightIndexed(initial: R, operation: (index: Int, Int, acc: R) -> R): R

Accumulates value starting with initial value and applying operation from right to left to each element with its index in the original array and current accumulator value.

Since Kotlin 1.0
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inline fun IntArray.forEach(action: (Int) -> Unit)

Performs the given action on each element.

Since Kotlin 1.0
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inline fun IntArray.forEachIndexed(action: (index: Int, Int) -> Unit)

Performs the given action on each element, providing sequential index with the element.

Since Kotlin 1.0
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operator fun get(index: Int): Int

Returns the array element at the given index. This method can be called using the index operator.

Since Kotlin 1.0
operator external fun get(index: Int): Int

Returns the array element at the given index. This method can be called using the index operator.

Since Kotlin 1.3
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inline fun IntArray.getOrElse(index: Int, defaultValue: (Int) -> Int): Int

Returns an element at the given index or the result of calling the defaultValue function if the index is out of bounds of this array.

Since Kotlin 1.0
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fun IntArray.getOrNull(index: Int): Int?

Returns an element at the given index or null if the index is out of bounds of this array.

Since Kotlin 1.0
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inline fun <K> IntArray.groupBy(keySelector: (Int) -> K): Map<K, List<Int>>

Groups elements of the original array by the key returned by the given keySelector function applied to each element and returns a map where each group key is associated with a list of corresponding elements.

Since Kotlin 1.0
inline fun <K, V> IntArray.groupBy(keySelector: (Int) -> K, valueTransform: (Int) -> V): Map<K, List<V>>

Groups values returned by the valueTransform function applied to each element of the original array by the key returned by the given keySelector function applied to the element and returns a map where each group key is associated with a list of corresponding values.

Since Kotlin 1.0
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inline fun <K, M : MutableMap<in K, MutableList<Int>>> IntArray.groupByTo(destination: M, keySelector: (Int) -> K): M

Groups elements of the original array by the key returned by the given keySelector function applied to each element and puts to the destination map each group key associated with a list of corresponding elements.

Since Kotlin 1.0
inline fun <K, V, M : MutableMap<in K, MutableList<V>>> IntArray.groupByTo(destination: M, keySelector: (Int) -> K, valueTransform: (Int) -> V): M

Groups values returned by the valueTransform function applied to each element of the original array by the key returned by the given keySelector function applied to the element and puts to the destination map each group key associated with a list of corresponding values.

Since Kotlin 1.0
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fun IntArray.indexOf(element: Int): Int

Returns first index of element, or -1 if the array does not contain element.

Since Kotlin 1.0
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inline fun IntArray.indexOfFirst(predicate: (Int) -> Boolean): Int

Returns index of the first element matching the given predicate, or -1 if the array does not contain such element.

Since Kotlin 1.0
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inline fun IntArray.indexOfLast(predicate: (Int) -> Boolean): Int

Returns index of the last element matching the given predicate, or -1 if the array does not contain such element.

Since Kotlin 1.0
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infix fun IntArray.intersect(other: Iterable<Int>): Set<Int>

Returns a set containing all elements that are contained by both this array and the specified collection.

Since Kotlin 1.0
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inline fun IntArray.isEmpty(): Boolean

Returns true if the array is empty.

Since Kotlin 1.0
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inline fun IntArray.isNotEmpty(): Boolean

Returns true if the array is not empty.

Since Kotlin 1.0
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operator fun iterator(): IntIterator

Creates an iterator over the elements of the array.

Since Kotlin 1.0
operator fun iterator(): IntIterator

Creates an iterator over the elements of the array.

Since Kotlin 1.3
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fun <A : Appendable> IntArray.joinTo(buffer: A, separator: CharSequence = ", ", prefix: CharSequence = "", postfix: CharSequence = "", limit: Int = -1, truncated: CharSequence = "...", transform: (Int) -> CharSequence? = null): A

Appends the string from all the elements separated using separator and using the given prefix and postfix if supplied.

Since Kotlin 1.0
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fun IntArray.joinToString(separator: CharSequence = ", ", prefix: CharSequence = "", postfix: CharSequence = "", limit: Int = -1, truncated: CharSequence = "...", transform: (Int) -> CharSequence? = null): String

Creates a string from all the elements separated using separator and using the given prefix and postfix if supplied.

Since Kotlin 1.0
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fun IntArray.last(): Int

Returns the last element.

Since Kotlin 1.0
inline fun IntArray.last(predicate: (Int) -> Boolean): Int

Returns the last element matching the given predicate.

Since Kotlin 1.0
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fun IntArray.lastIndexOf(element: Int): Int

Returns last index of element, or -1 if the array does not contain element.

Since Kotlin 1.0
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fun IntArray.lastOrNull(): Int?

Returns the last element, or null if the array is empty.

Since Kotlin 1.0
inline fun IntArray.lastOrNull(predicate: (Int) -> Boolean): Int?

Returns the last element matching the given predicate, or null if no such element was found.

Since Kotlin 1.0
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inline fun <R> IntArray.map(transform: (Int) -> R): List<R>

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

Since Kotlin 1.0
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inline fun <R> IntArray.mapIndexed(transform: (index: Int, Int) -> 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.

Since Kotlin 1.0
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inline fun <R, C : MutableCollection<in R>> IntArray.mapIndexedTo(destination: C, transform: (index: Int, Int) -> R): C

Applies the given transform function to each element and its index in the original array and appends the results to the given destination.

Since Kotlin 1.0
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inline fun <R, C : MutableCollection<in R>> IntArray.mapTo(destination: C, transform: (Int) -> R): C

Applies the given transform function to each element of the original array and appends the results to the given destination.

Since Kotlin 1.0
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@JvmName(name = "maxOrThrow")
fun IntArray.max(): Int

Returns the largest element.

Since Kotlin 1.7
fun IntArray.max(): Int?
Since Kotlin 1.0
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@JvmName(name = "maxByOrThrow")
inline fun <R : Comparable<R>> IntArray.maxBy(selector: (Int) -> R): Int

Returns the first element yielding the largest value of the given function.

Since Kotlin 1.7
inline fun <R : Comparable<R>> IntArray.maxBy(selector: (Int) -> R): Int?
Since Kotlin 1.0
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inline fun <R : Comparable<R>> IntArray.maxByOrNull(selector: (Int) -> R): Int?

Returns the first element yielding the largest value of the given function or null if there are no elements.

Since Kotlin 1.4
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inline fun <R : Comparable<R>> IntArray.maxOf(selector: (Int) -> R): R
inline fun IntArray.maxOf(selector: (Int) -> Double): Double
inline fun IntArray.maxOf(selector: (Int) -> Float): Float

Returns the largest value among all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
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inline fun <R : Comparable<R>> IntArray.maxOfOrNull(selector: (Int) -> R): R?
inline fun IntArray.maxOfOrNull(selector: (Int) -> Double): Double?
inline fun IntArray.maxOfOrNull(selector: (Int) -> Float): Float?

Returns the largest value among all values produced by selector function applied to each element in the array or null if there are no elements.

Since Kotlin 1.4
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inline fun <R> IntArray.maxOfWith(comparator: Comparator<in R>, selector: (Int) -> R): R

Returns the largest value according to the provided comparator among all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
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inline fun <R> IntArray.maxOfWithOrNull(comparator: Comparator<in R>, selector: (Int) -> R): R?

Returns the largest value according to the provided comparator among all values produced by selector function applied to each element in the array or null if there are no elements.

Since Kotlin 1.4
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fun IntArray.maxOrNull(): Int?

Returns the largest element or null if there are no elements.

Since Kotlin 1.4
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@JvmName(name = "maxWithOrThrow")
fun IntArray.maxWith(comparator: Comparator<in Int>): Int

Returns the first element having the largest value according to the provided comparator.

Since Kotlin 1.7
fun IntArray.maxWith(comparator: Comparator<in Int>): Int?
Since Kotlin 1.0
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fun IntArray.maxWithOrNull(comparator: Comparator<in Int>): Int?

Returns the first element having the largest value according to the provided comparator or null if there are no elements.

Since Kotlin 1.4
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@JvmName(name = "minOrThrow")
fun IntArray.min(): Int

Returns the smallest element.

Since Kotlin 1.7
fun IntArray.min(): Int?
Since Kotlin 1.0
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@JvmName(name = "minByOrThrow")
inline fun <R : Comparable<R>> IntArray.minBy(selector: (Int) -> R): Int

Returns the first element yielding the smallest value of the given function.

Since Kotlin 1.7
inline fun <R : Comparable<R>> IntArray.minBy(selector: (Int) -> R): Int?
Since Kotlin 1.0
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inline fun <R : Comparable<R>> IntArray.minByOrNull(selector: (Int) -> R): Int?

Returns the first element yielding the smallest value of the given function or null if there are no elements.

Since Kotlin 1.4
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inline fun <R : Comparable<R>> IntArray.minOf(selector: (Int) -> R): R
inline fun IntArray.minOf(selector: (Int) -> Double): Double
inline fun IntArray.minOf(selector: (Int) -> Float): Float

Returns the smallest value among all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
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inline fun <R : Comparable<R>> IntArray.minOfOrNull(selector: (Int) -> R): R?
inline fun IntArray.minOfOrNull(selector: (Int) -> Double): Double?
inline fun IntArray.minOfOrNull(selector: (Int) -> Float): Float?

Returns the smallest value among all values produced by selector function applied to each element in the array or null if there are no elements.

Since Kotlin 1.4
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inline fun <R> IntArray.minOfWith(comparator: Comparator<in R>, selector: (Int) -> R): R

Returns the smallest value according to the provided comparator among all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
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inline fun <R> IntArray.minOfWithOrNull(comparator: Comparator<in R>, selector: (Int) -> R): R?

Returns the smallest value according to the provided comparator among all values produced by selector function applied to each element in the array or null if there are no elements.

Since Kotlin 1.4
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fun IntArray.minOrNull(): Int?

Returns the smallest element or null if there are no elements.

Since Kotlin 1.4
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@JvmName(name = "minWithOrThrow")
fun IntArray.minWith(comparator: Comparator<in Int>): Int

Returns the first element having the smallest value according to the provided comparator.

Since Kotlin 1.7
fun IntArray.minWith(comparator: Comparator<in Int>): Int?
Since Kotlin 1.0
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fun IntArray.minWithOrNull(comparator: Comparator<in Int>): Int?

Returns the first element having the smallest value according to the provided comparator or null if there are no elements.

Since Kotlin 1.4
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fun IntArray.none(): Boolean

Returns true if the array has no elements.

Since Kotlin 1.0
inline fun IntArray.none(predicate: (Int) -> Boolean): Boolean

Returns true if no elements match the given predicate.

Since Kotlin 1.0
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inline fun IntArray.onEach(action: (Int) -> Unit): IntArray

Performs the given action on each element and returns the array itself afterwards.

Since Kotlin 1.4
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inline fun IntArray.onEachIndexed(action: (index: Int, Int) -> Unit): IntArray

Performs the given action on each element, providing sequential index with the element, and returns the array itself afterwards.

Since Kotlin 1.4
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inline fun IntArray.partition(predicate: (Int) -> Boolean): Pair<List<Int>, List<Int>>

Splits the original array into pair of lists, where first list contains elements for which predicate yielded true, while second list contains elements for which predicate yielded false.

Since Kotlin 1.0
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expect operator fun IntArray.plus(element: Int): IntArray

Returns an array containing all elements of the original array and then the given element.

Since Kotlin 1.0
expect operator fun IntArray.plus(elements: IntArray): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements array.

Since Kotlin 1.0
expect operator fun IntArray.plus(elements: Collection<Int>): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements collection.

Since Kotlin 1.0
actual inline operator fun IntArray.plus(element: Int): IntArray

Returns an array containing all elements of the original array and then the given element.

Since Kotlin 1.1
actual inline operator fun IntArray.plus(elements: IntArray): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements array.

Since Kotlin 1.1
actual operator fun IntArray.plus(elements: Collection<Int>): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements collection.

Since Kotlin 1.1
actual operator fun IntArray.plus(element: Int): IntArray

Returns an array containing all elements of the original array and then the given element.

Since Kotlin 1.0
actual operator fun IntArray.plus(elements: IntArray): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements array.

Since Kotlin 1.0
actual operator fun IntArray.plus(elements: Collection<Int>): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements collection.

Since Kotlin 1.0
actual operator fun IntArray.plus(element: Int): IntArray

Returns an array containing all elements of the original array and then the given element.

Since Kotlin 1.3
actual operator fun IntArray.plus(elements: IntArray): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements array.

Since Kotlin 1.3
actual operator fun IntArray.plus(elements: Collection<Int>): IntArray

Returns an array containing all elements of the original array and then all elements of the given elements collection.

Since Kotlin 1.3
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inline fun IntArray.random(): Int

Returns a random element from this array.

Since Kotlin 1.3
fun IntArray.random(random: Random): Int

Returns a random element from this array using the specified source of randomness.

Since Kotlin 1.3
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inline fun IntArray.randomOrNull(): Int?

Returns a random element from this array, or null if this array is empty.

Since Kotlin 1.4
fun IntArray.randomOrNull(random: Random): Int?

Returns a random element from this array using the specified source of randomness, or null if this array is empty.

Since Kotlin 1.4
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inline fun IntArray.reduce(operation: (acc: Int, Int) -> Int): Int

Accumulates value starting with the first element and applying operation from left to right to current accumulator value and each element.

Since Kotlin 1.0
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inline fun IntArray.reduceIndexed(operation: (index: Int, acc: Int, Int) -> Int): Int

Accumulates value starting with the first element and applying operation from left to right to current accumulator value and each element with its index in the original array.

Since Kotlin 1.0
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inline fun IntArray.reduceIndexedOrNull(operation: (index: Int, acc: Int, Int) -> Int): Int?

Accumulates value starting with the first element and applying operation from left to right to current accumulator value and each element with its index in the original array.

Since Kotlin 1.4
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inline fun IntArray.reduceOrNull(operation: (acc: Int, Int) -> Int): Int?

Accumulates value starting with the first element and applying operation from left to right to current accumulator value and each element.

Since Kotlin 1.4
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inline fun IntArray.reduceRight(operation: (Int, acc: Int) -> Int): Int

Accumulates value starting with the last element and applying operation from right to left to each element and current accumulator value.

Since Kotlin 1.0
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inline fun IntArray.reduceRightIndexed(operation: (index: Int, Int, acc: Int) -> Int): Int

Accumulates value starting with the last element and applying operation from right to left to each element with its index in the original array and current accumulator value.

Since Kotlin 1.0
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inline fun IntArray.reduceRightIndexedOrNull(operation: (index: Int, Int, acc: Int) -> Int): Int?

Accumulates value starting with the last element and applying operation from right to left to each element with its index in the original array and current accumulator value.

Since Kotlin 1.4
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inline fun IntArray.reduceRightOrNull(operation: (Int, acc: Int) -> Int): Int?

Accumulates value starting with the last element and applying operation from right to left to each element and current accumulator value.

Since Kotlin 1.4
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fun IntArray.refTo(index: Int): CValuesRef<IntVar>
Since Kotlin 1.3
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fun IntArray.reverse()

Reverses elements in the array in-place.

Since Kotlin 1.0
fun IntArray.reverse(fromIndex: Int, toIndex: Int)

Reverses elements of the array in the specified range in-place.

Since Kotlin 1.4
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fun IntArray.reversed(): List<Int>

Returns a list with elements in reversed order.

Since Kotlin 1.0
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fun IntArray.reversedArray(): IntArray

Returns an array with elements of this array in reversed order.

Since Kotlin 1.0
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inline fun <R> IntArray.runningFold(initial: R, operation: (acc: R, Int) -> R): List<R>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element and current accumulator value that starts with initial value.

Since Kotlin 1.4
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inline fun <R> IntArray.runningFoldIndexed(initial: R, operation: (index: Int, acc: R, Int) -> R): List<R>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element, its index in the original array and current accumulator value that starts with initial value.

Since Kotlin 1.4
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inline fun IntArray.runningReduce(operation: (acc: Int, Int) -> Int): List<Int>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element and current accumulator value that starts with the first element of this array.

Since Kotlin 1.4
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inline fun IntArray.runningReduceIndexed(operation: (index: Int, acc: Int, Int) -> Int): List<Int>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element, its index in the original array and current accumulator value that starts with the first element of this array.

Since Kotlin 1.4
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inline fun <R> IntArray.scan(initial: R, operation: (acc: R, Int) -> R): List<R>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element and current accumulator value that starts with initial value.

Since Kotlin 1.4
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inline fun <R> IntArray.scanIndexed(initial: R, operation: (index: Int, acc: R, Int) -> R): List<R>

Returns a list containing successive accumulation values generated by applying operation from left to right to each element, its index in the original array and current accumulator value that starts with initial value.

Since Kotlin 1.4
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operator fun set(index: Int, value: Int)

Sets the element at the given index to the given value. This method can be called using the index operator.

Since Kotlin 1.0
operator external fun set(index: Int, value: Int)

Sets the element at the given index to the given value. This method can be called using the index operator.

Since Kotlin 1.3
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fun IntArray.shuffle()

Randomly shuffles elements in this array in-place.

Since Kotlin 1.4
fun IntArray.shuffle(random: Random)

Randomly shuffles elements in this array in-place using the specified random instance as the source of randomness.

Since Kotlin 1.4
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fun IntArray.single(): Int

Returns the single element, or throws an exception if the array is empty or has more than one element.

Since Kotlin 1.0
inline fun IntArray.single(predicate: (Int) -> Boolean): Int

Returns the single element matching the given predicate, or throws exception if there is no or more than one matching element.

Since Kotlin 1.0
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fun IntArray.singleOrNull(): Int?

Returns single element, or null if the array is empty or has more than one element.

Since Kotlin 1.0
inline fun IntArray.singleOrNull(predicate: (Int) -> Boolean): Int?

Returns the single element matching the given predicate, or null if element was not found or more than one element was found.

Since Kotlin 1.0
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fun IntArray.slice(indices: Iterable<Int>): List<Int>

Returns a list containing elements at specified indices.

Since Kotlin 1.0
fun IntArray.slice(indices: IntRange): List<Int>

Returns a list containing elements at indices in the specified indices range.

Since Kotlin 1.0
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fun IntArray.sliceArray(indices: Collection<Int>): IntArray

Returns an array containing elements of this array at specified indices.

Since Kotlin 1.0
fun IntArray.sliceArray(indices: IntRange): IntArray

Returns an array containing elements at indices in the specified indices range.

Since Kotlin 1.0
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expect fun IntArray.sort()

Sorts the array in-place.

Since Kotlin 1.0
expect fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size)

Sorts a range in the array in-place.

Since Kotlin 1.4
actual fun IntArray.sort()

Sorts the array in-place.

Since Kotlin 1.1
inline fun IntArray.sort(noinline comparison: (a: Int, b: Int) -> Int)

Sorts the array in-place according to the order specified by the given comparison function.

Since Kotlin 1.1
actual fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size)

Sorts a range in the array in-place.

Since Kotlin 1.4
actual fun IntArray.sort()

Sorts the array in-place.

Since Kotlin 1.0
actual fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size)

Sorts a range in the array in-place.

Since Kotlin 1.0
actual fun IntArray.sort()

Sorts the array in-place.

Since Kotlin 1.3
actual fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size)

Sorts a range in the array in-place.

Since Kotlin 1.4
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fun IntArray.sortDescending()

Sorts elements in the array in-place descending according to their natural sort order.

Since Kotlin 1.0
fun IntArray.sortDescending(fromIndex: Int, toIndex: Int)

Sorts elements of the array in the specified range in-place. The elements are sorted descending according to their natural sort order.

Since Kotlin 1.4
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fun IntArray.sorted(): List<Int>

Returns a list of all elements sorted according to their natural sort order.

Since Kotlin 1.0
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fun IntArray.sortedArray(): IntArray

Returns an array with all elements of this array sorted according to their natural sort order.

Since Kotlin 1.0
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fun IntArray.sortedArrayDescending(): IntArray

Returns an array with all elements of this array sorted descending according to their natural sort order.

Since Kotlin 1.0
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inline fun <R : Comparable<R>> IntArray.sortedBy(crossinline selector: (Int) -> R?): List<Int>

Returns a list of all elements sorted according to natural sort order of the value returned by specified selector function.

Since Kotlin 1.0
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inline fun <R : Comparable<R>> IntArray.sortedByDescending(crossinline selector: (Int) -> R?): List<Int>

Returns a list of all elements sorted descending according to natural sort order of the value returned by specified selector function.

Since Kotlin 1.0
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fun IntArray.sortedDescending(): List<Int>

Returns a list of all elements sorted descending according to their natural sort order.

Since Kotlin 1.0
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fun IntArray.sortedWith(comparator: Comparator<in Int>): List<Int>

Returns a list of all elements sorted according to the specified comparator.

Since Kotlin 1.0
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infix fun IntArray.subtract(other: Iterable<Int>): Set<Int>

Returns a set containing all elements that are contained by this array and not contained by the specified collection.

Since Kotlin 1.0
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fun IntArray.sum(): Int

Returns the sum of all elements in the array.

Since Kotlin 1.0
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inline fun IntArray.sumBy(selector: (Int) -> Int): Int

Returns the sum of all values produced by selector function applied to each element in the array.

Since Kotlin 1.0
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inline fun IntArray.sumByDouble(selector: (Int) -> Double): Double

Returns the sum of all values produced by selector function applied to each element in the array.

Since Kotlin 1.0
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@JvmName(name = "sumOfDouble")
inline fun IntArray.sumOf(selector: (Int) -> Double): Double
@JvmName(name = "sumOfInt")
inline fun IntArray.sumOf(selector: (Int) -> Int): Int
@JvmName(name = "sumOfLong")
inline fun IntArray.sumOf(selector: (Int) -> Long): Long

Returns the sum of all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
@JvmName(name = "sumOfUInt")
inline fun IntArray.sumOf(selector: (Int) -> UInt): UInt
@JvmName(name = "sumOfULong")
inline fun IntArray.sumOf(selector: (Int) -> ULong): ULong

Returns the sum of all values produced by selector function applied to each element in the array.

Since Kotlin 1.5
@JvmName(name = "sumOfBigDecimal")
inline fun IntArray.sumOf(selector: (Int) -> BigDecimal): BigDecimal
@JvmName(name = "sumOfBigInteger")
inline fun IntArray.sumOf(selector: (Int) -> BigInteger): BigInteger

Returns the sum of all values produced by selector function applied to each element in the array.

Since Kotlin 1.4
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fun IntArray.take(n: Int): List<Int>

Returns a list containing first n elements.

Since Kotlin 1.0
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fun IntArray.takeLast(n: Int): List<Int>

Returns a list containing last n elements.

Since Kotlin 1.0
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inline fun IntArray.takeLastWhile(predicate: (Int) -> Boolean): List<Int>

Returns a list containing last elements satisfying the given predicate.

Since Kotlin 1.0
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inline fun IntArray.takeWhile(predicate: (Int) -> Boolean): List<Int>

Returns a list containing first elements satisfying the given predicate.

Since Kotlin 1.0
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fun <C : MutableCollection<in Int>> IntArray.toCollection(destination: C): C

Appends all elements to the given destination collection.

Since Kotlin 1.0
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fun IntArray.toCValues(): CValues<IntVar>
Since Kotlin 1.3
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fun IntArray.toHashSet(): HashSet<Int>

Returns a new HashSet of all elements.

Since Kotlin 1.0
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fun IntArray.toList(): List<Int>

Returns a List containing all elements.

Since Kotlin 1.0
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fun IntArray.toMutableList(): MutableList<Int>

Returns a new MutableList filled with all elements of this array.

Since Kotlin 1.0
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fun IntArray.toMutableSet(): MutableSet<Int>

Returns a new MutableSet containing all distinct elements from the given array.

Since Kotlin 1.0
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fun IntArray.toSet(): Set<Int>

Returns a Set of all elements.

Since Kotlin 1.0
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fun IntArray.toSortedSet(): SortedSet<Int>

Returns a new SortedSet of all elements.

Since Kotlin 1.0
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expect fun IntArray.toTypedArray(): Array<Int>

Returns a typed object array containing all of the elements of this primitive array.

Since Kotlin 1.0
actual fun IntArray.toTypedArray(): Array<Int>

Returns a typed object array containing all of the elements of this primitive array.

Since Kotlin 1.1
actual fun IntArray.toTypedArray(): Array<Int>

Returns a typed object array containing all of the elements of this primitive array.

Since Kotlin 1.0
actual fun IntArray.toTypedArray(): Array<Int>

Returns a typed object array containing all of the elements of this primitive array.

Since Kotlin 1.3
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@ExperimentalUnsignedTypes
inline fun IntArray.toUIntArray(): UIntArray

Returns an array of type UIntArray, which is a copy of this array where each element is an unsigned reinterpretation of the corresponding element of this array.

Since Kotlin 1.3
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infix fun IntArray.union(other: Iterable<Int>): Set<Int>

Returns a set containing all distinct elements from both collections.

Since Kotlin 1.0
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fun IntArray.withIndex(): Iterable<IndexedValue<Int>>

Returns a lazy Iterable that wraps each element of the original array into an IndexedValue containing the index of that element and the element itself.

Since Kotlin 1.0
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infix fun <R> IntArray.zip(other: Array<out R>): List<Pair<Int, R>>
infix fun IntArray.zip(other: IntArray): List<Pair<Int, Int>>

Returns a list of pairs built from the elements of this array and the other array with the same index. The returned list has length of the shortest collection.

Since Kotlin 1.0
infix fun <R> IntArray.zip(other: Iterable<R>): List<Pair<Int, R>>

Returns a list of pairs built from the elements of this collection and other array with the same index. The returned list has length of the shortest collection.

Since Kotlin 1.0
inline fun <R, V> IntArray.zip(other: Array<out R>, transform: (a: Int, b: R) -> V): List<V>

Returns a list of values built from the elements of this array and the other array with the same index using the provided transform function applied to each pair of elements. The returned list has length of the shortest collection.

Since Kotlin 1.0
inline fun <V> IntArray.zip(other: IntArray, transform: (a: Int, b: Int) -> V): List<V>

Returns a list of values built from the elements of this array and the other array with the same index using the provided transform function applied to each pair of elements. The returned list has length of the shortest array.

Since Kotlin 1.0
inline fun <R, V> IntArray.zip(other: Iterable<R>, transform: (a: Int, b: R) -> V): List<V>

Returns a list of values built from the elements of this array and the other collection with the same index using the provided transform function applied to each pair of elements. The returned list has length of the shortest collection.

Since Kotlin 1.0