class DoubleArray
An array of doubles. When targeting the JVM, instances of this class are represented as double[].
DoubleArray(size: Int, init: (Int) -> Double) Creates a new array of the specified size, where each element is calculated by calling the specified init function. The init function returns an array element given its index. DoubleArray(size: Int) Creates a new array of the specified size, with all elements initialized to zero. |
val size: Int Returns the number of elements in the array. |
operator fun get(index: Int): Double Returns the array element at the given index. This method can be called using the index operator. | |
operator fun iterator(): DoubleIterator Creates an iterator over the elements of the array. | |
operator fun set(index: Int, value: Double) Sets the element at the given index to the given value. This method can be called using the index operator. |
open operator fun equals(other: Any?): Boolean Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements: | |
open fun hashCode(): Int Returns a hash code value for the object. The general contract of hashCode is: | |
open fun toString(): String Returns a string representation of the object. |
val DoubleArray.indices: IntRange Returns the range of valid indices for the array. | |
val DoubleArray.lastIndex: Int Returns the last valid index for the array. |
fun DoubleArray.all(predicate: (Double) -> Boolean): Boolean Returns | |
fun DoubleArray.any(): Boolean Returns fun DoubleArray.any(predicate: (Double) -> Boolean): Boolean Returns | |
fun DoubleArray.asIterable(): Iterable<Double> Creates an Iterable instance that wraps the original array returning its elements when being iterated. | |
fun DoubleArray.asList(): List<Double> Returns a List that wraps the original array. | |
fun DoubleArray.asSequence(): Sequence<Double> Creates a Sequence instance that wraps the original array returning its elements when being iterated. | |
fun <K, V> DoubleArray.associate( transform: (Double) -> Pair<K, V> ): Map<K, V> Returns a Map containing key-value pairs provided by transform function applied to elements of the given array. | |
fun <K> DoubleArray.associateBy( keySelector: (Double) -> K ): Map<K, Double> Returns a Map containing the elements from the given array indexed by the key returned from keySelector function applied to each element. fun <K, V> DoubleArray.associateBy( keySelector: (Double) -> K, valueTransform: (Double) -> 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. | |
fun <K, M : MutableMap<in K, in Double>> DoubleArray.associateByTo( destination: M, keySelector: (Double) -> 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. fun <K, V, M : MutableMap<in K, in V>> DoubleArray.associateByTo( destination: M, keySelector: (Double) -> K, valueTransform: (Double) -> 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. | |
fun <K, V, M : MutableMap<in K, in V>> DoubleArray.associateTo( destination: M, transform: (Double) -> 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. | |
fun DoubleArray.average(): Double Returns an average value of elements in the array. | |
fun DoubleArray.binarySearch( element: Double, 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. | |
operator fun DoubleArray.component1(): Double Returns 1st element from the collection. | |
operator fun DoubleArray.component2(): Double Returns 2nd element from the collection. | |
operator fun DoubleArray.component3(): Double Returns 3rd element from the collection. | |
operator fun DoubleArray.component4(): Double Returns 4th element from the collection. | |
operator fun DoubleArray.component5(): Double Returns 5th element from the collection. | |
operator fun DoubleArray.contains(element: Double): Boolean Returns | |
infix fun DoubleArray.contentEquals( other: DoubleArray ): Boolean Returns | |
fun DoubleArray.contentHashCode(): Int Returns a hash code based on the contents of this array as if it is List. | |
fun DoubleArray.contentToString(): String Returns a string representation of the contents of the specified array as if it is List. | |
fun DoubleArray.copyOf(): DoubleArray Returns new array which is a copy of the original array. fun DoubleArray.copyOf(newSize: Int): DoubleArray Returns new array which is a copy of the original array, resized to the given newSize. | |
fun DoubleArray.copyOfRange( fromIndex: Int, toIndex: Int ): DoubleArray Returns new array which is a copy of range of original array. | |
fun DoubleArray.count(): Int Returns the number of elements in this array. fun DoubleArray.count(predicate: (Double) -> Boolean): Int Returns the number of elements matching the given predicate. | |
fun DoubleArray.distinct(): List<Double> Returns a list containing only distinct elements from the given array. | |
fun <K> DoubleArray.distinctBy( selector: (Double) -> K ): List<Double> Returns a list containing only elements from the given array having distinct keys returned by the given selector function. | |
fun DoubleArray.drop(n: Int): List<Double> Returns a list containing all elements except first n elements. | |
fun DoubleArray.dropLast(n: Int): List<Double> Returns a list containing all elements except last n elements. | |
fun DoubleArray.dropLastWhile( predicate: (Double) -> Boolean ): List<Double> Returns a list containing all elements except last elements that satisfy the given predicate. | |
fun DoubleArray.dropWhile( predicate: (Double) -> Boolean ): List<Double> Returns a list containing all elements except first elements that satisfy the given predicate. | |
fun DoubleArray.elementAt(index: Int): Double Returns an element at the given index or throws an IndexOutOfBoundsException if the index is out of bounds of this array. | |
fun DoubleArray.elementAtOrElse( index: Int, defaultValue: (Int) -> Double ): Double 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. | |
fun DoubleArray.elementAtOrNull(index: Int): Double? Returns an element at the given index or | |
fun DoubleArray.fill( element: Double, fromIndex: Int = 0, toIndex: Int = size) Fills original array with the provided value. | |
fun DoubleArray.filter( predicate: (Double) -> Boolean ): List<Double> Returns a list containing only elements matching the given predicate. | |
fun DoubleArray.filterIndexed( predicate: (index: Int, Double) -> Boolean ): List<Double> Returns a list containing only elements matching the given predicate. | |
fun <C : MutableCollection<in Double>> DoubleArray.filterIndexedTo( destination: C, predicate: (index: Int, Double) -> Boolean ): C Appends all elements matching the given predicate to the given destination. | |
fun DoubleArray.filterNot( predicate: (Double) -> Boolean ): List<Double> Returns a list containing all elements not matching the given predicate. | |
fun <C : MutableCollection<in Double>> DoubleArray.filterNotTo( destination: C, predicate: (Double) -> Boolean ): C Appends all elements not matching the given predicate to the given destination. | |
fun <C : MutableCollection<in Double>> DoubleArray.filterTo( destination: C, predicate: (Double) -> Boolean ): C Appends all elements matching the given predicate to the given destination. | |
fun DoubleArray.find(predicate: (Double) -> Boolean): Double? Returns the first element matching the given predicate, or | |
fun DoubleArray.findLast( predicate: (Double) -> Boolean ): Double? Returns the last element matching the given predicate, or | |
fun DoubleArray.first(): Double Returns first element. fun DoubleArray.first(predicate: (Double) -> Boolean): Double Returns the first element matching the given predicate. | |
fun DoubleArray.firstOrNull(): Double? Returns the first element, or fun DoubleArray.firstOrNull( predicate: (Double) -> Boolean ): Double? Returns the first element matching the given predicate, or | |
fun <R> DoubleArray.flatMap( transform: (Double) -> 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. | |
fun <R, C : MutableCollection<in R>> DoubleArray.flatMapTo( destination: C, transform: (Double) -> Iterable<R> ): C Appends all elements yielded from results of transform function being invoked on each element of original array, to the given destination. | |
fun <R> DoubleArray.fold( initial: R, operation: (acc: R, Double) -> R ): R Accumulates value starting with initial value and applying operation from left to right to current accumulator value and each element. | |
fun <R> DoubleArray.foldIndexed( initial: R, operation: (index: Int, acc: R, Double) -> 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. | |
fun <R> DoubleArray.foldRight( initial: R, operation: (Double, acc: R) -> R ): R Accumulates value starting with initial value and applying operation from right to left to each element and current accumulator value. | |
fun <R> DoubleArray.foldRightIndexed( initial: R, operation: (index: Int, Double, 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. | |
fun DoubleArray.forEach(action: (Double) -> Unit) Performs the given action on each element. | |
fun DoubleArray.forEachIndexed( action: (index: Int, Double) -> Unit) Performs the given action on each element, providing sequential index with the element. | |
fun DoubleArray.getOrElse( index: Int, defaultValue: (Int) -> Double ): Double 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. | |
fun DoubleArray.getOrNull(index: Int): Double? Returns an element at the given index or | |
fun <K> DoubleArray.groupBy( keySelector: (Double) -> K ): Map<K, List<Double>> 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. fun <K, V> DoubleArray.groupBy( keySelector: (Double) -> K, valueTransform: (Double) -> 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. | |
fun <K, M : MutableMap<in K, MutableList<Double>>> DoubleArray.groupByTo( destination: M, keySelector: (Double) -> 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. fun <K, V, M : MutableMap<in K, MutableList<V>>> DoubleArray.groupByTo( destination: M, keySelector: (Double) -> K, valueTransform: (Double) -> 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. | |
fun DoubleArray.indexOf(element: Double): Int Returns first index of element, or -1 if the array does not contain element. | |
fun DoubleArray.indexOfFirst( predicate: (Double) -> Boolean ): Int Returns index of the first element matching the given predicate, or -1 if the array does not contain such element. | |
fun DoubleArray.indexOfLast( predicate: (Double) -> Boolean ): Int Returns index of the last element matching the given predicate, or -1 if the array does not contain such element. | |
infix fun DoubleArray.intersect( other: Iterable<Double> ): Set<Double> Returns a set containing all elements that are contained by both this set and the specified collection. | |
fun DoubleArray.isEmpty(): Boolean Returns | |
fun DoubleArray.isNotEmpty(): Boolean Returns | |
fun <A> DoubleArray.joinTo( buffer: A, separator: CharSequence = ", ", prefix: CharSequence = "", postfix: CharSequence = "", limit: Int = -1, truncated: CharSequence = "...", transform: (Double) -> CharSequence = null ): A Appends the string from all the elements separated using separator and using the given prefix and postfix if supplied. | |
fun DoubleArray.joinToString( separator: CharSequence = ", ", prefix: CharSequence = "", postfix: CharSequence = "", limit: Int = -1, truncated: CharSequence = "...", transform: (Double) -> CharSequence = null ): String Creates a string from all the elements separated using separator and using the given prefix and postfix if supplied. | |
fun DoubleArray.last(): Double Returns the last element. fun DoubleArray.last(predicate: (Double) -> Boolean): Double Returns the last element matching the given predicate. | |
fun DoubleArray.lastIndexOf(element: Double): Int Returns last index of element, or -1 if the array does not contain element. | |
fun DoubleArray.lastOrNull(): Double? Returns the last element, or fun DoubleArray.lastOrNull( predicate: (Double) -> Boolean ): Double? Returns the last element matching the given predicate, or | |
fun <R> DoubleArray.map(transform: (Double) -> R): List<R> Returns a list containing the results of applying the given transform function to each element in the original array. | |
fun <R> DoubleArray.mapIndexed( transform: (index: Int, Double) -> 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. | |
fun <R, C : MutableCollection<in R>> DoubleArray.mapIndexedTo( destination: C, transform: (index: Int, Double) -> 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. | |
fun <R, C : MutableCollection<in R>> DoubleArray.mapTo( destination: C, transform: (Double) -> R ): C Applies the given transform function to each element of the original array and appends the results to the given destination. | |
fun DoubleArray.max(): Double? Returns the largest element or | |
fun <R : Comparable<R>> DoubleArray.maxBy( selector: (Double) -> R ): Double? Returns the first element yielding the largest value of the given function or | |
fun DoubleArray.maxWith( comparator: Comparator<in Double> ): Double? fun DoubleArray.maxWith( comparator: Comparator<in Double> ): Double? Returns the first element having the largest value according to the provided comparator or | |
fun DoubleArray.min(): Double? Returns the smallest element or | |
fun <R : Comparable<R>> DoubleArray.minBy( selector: (Double) -> R ): Double? Returns the first element yielding the smallest value of the given function or | |
fun DoubleArray.minWith( comparator: Comparator<in Double> ): Double? fun DoubleArray.minWith( comparator: Comparator<in Double> ): Double? Returns the first element having the smallest value according to the provided comparator or | |
fun DoubleArray.none(): Boolean Returns fun DoubleArray.none(predicate: (Double) -> Boolean): Boolean Returns | |
fun DoubleArray.partition( predicate: (Double) -> Boolean ): Pair<List<Double>, List<Double>> Splits the original array into pair of lists, where first list contains elements for which predicate yielded | |
operator fun DoubleArray.plus(element: Double): DoubleArray Returns an array containing all elements of the original array and then the given element. operator fun DoubleArray.plus( elements: Collection<Double> ): DoubleArray Returns an array containing all elements of the original array and then all elements of the given elements collection. operator fun DoubleArray.plus( elements: DoubleArray ): DoubleArray Returns an array containing all elements of the original array and then all elements of the given elements array. | |
fun DoubleArray.reduce( operation: (acc: Double, Double) -> Double ): Double Accumulates value starting with the first element and applying operation from left to right to current accumulator value and each element. | |
fun DoubleArray.reduceIndexed( operation: (index: Int, acc: Double, Double) -> Double ): Double 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. | |
fun DoubleArray.reduceRight( operation: (Double, acc: Double) -> Double ): Double Accumulates value starting with last element and applying operation from right to left to each element and current accumulator value. | |
fun DoubleArray.reduceRightIndexed( operation: (index: Int, Double, acc: Double) -> Double ): Double Accumulates value starting with last element and applying operation from right to left to each element with its index in the original array and current accumulator value. | |
fun DoubleArray.reverse() Reverses elements in the array in-place. | |
fun DoubleArray.reversed(): List<Double> Returns a list with elements in reversed order. | |
fun DoubleArray.reversedArray(): DoubleArray Returns an array with elements of this array in reversed order. | |
fun DoubleArray.single(): Double Returns the single element, or throws an exception if the array is empty or has more than one element. fun DoubleArray.single( predicate: (Double) -> Boolean ): Double Returns the single element matching the given predicate, or throws exception if there is no or more than one matching element. | |
fun DoubleArray.singleOrNull(): Double? Returns single element, or fun DoubleArray.singleOrNull( predicate: (Double) -> Boolean ): Double? Returns the single element matching the given predicate, or | |
fun DoubleArray.slice(indices: IntRange): List<Double> Returns a list containing elements at indices in the specified indices range. fun DoubleArray.slice(indices: Iterable<Int>): List<Double> Returns a list containing elements at specified indices. | |
fun DoubleArray.sliceArray( indices: Collection<Int> ): DoubleArray Returns an array containing elements of this array at specified indices. fun DoubleArray.sliceArray(indices: IntRange): DoubleArray Returns a list containing elements at indices in the specified indices range. | |
fun DoubleArray.sort() Sorts the array in-place. fun DoubleArray.sort(fromIndex: Int = 0, toIndex: Int = size) Sorts a range in the array in-place. fun DoubleArray.sort( comparison: (a: Double, b: Double) -> Int) Sorts the array in-place according to the order specified by the given comparison function. | |
fun DoubleArray.sortDescending() Sorts elements in the array in-place descending according to their natural sort order. | |
fun DoubleArray.sorted(): List<Double> Returns a list of all elements sorted according to their natural sort order. | |
fun DoubleArray.sortedArray(): DoubleArray Returns an array with all elements of this array sorted according to their natural sort order. | |
fun DoubleArray.sortedArrayDescending(): DoubleArray Returns an array with all elements of this array sorted descending according to their natural sort order. | |
fun <R : Comparable<R>> DoubleArray.sortedBy( selector: (Double) -> R? ): List<Double> Returns a list of all elements sorted according to natural sort order of the value returned by specified selector function. | |
fun <R : Comparable<R>> DoubleArray.sortedByDescending( selector: (Double) -> R? ): List<Double> Returns a list of all elements sorted descending according to natural sort order of the value returned by specified selector function. | |
fun DoubleArray.sortedDescending(): List<Double> Returns a list of all elements sorted descending according to their natural sort order. | |
fun DoubleArray.sortedWith( comparator: Comparator<in Double> ): List<Double> fun DoubleArray.sortedWith( comparator: Comparator<in Double> ): List<Double> Returns a list of all elements sorted according to the specified comparator. | |
infix fun DoubleArray.subtract( other: Iterable<Double> ): Set<Double> Returns a set containing all elements that are contained by this array and not contained by the specified collection. | |
fun DoubleArray.sum(): Double Returns the sum of all elements in the array. | |
fun DoubleArray.sumBy(selector: (Double) -> Int): Int Returns the sum of all values produced by selector function applied to each element in the array. | |
fun DoubleArray.sumByDouble( selector: (Double) -> Double ): Double Returns the sum of all values produced by selector function applied to each element in the array. | |
fun DoubleArray.take(n: Int): List<Double> Returns a list containing first n elements. | |
fun DoubleArray.takeLast(n: Int): List<Double> Returns a list containing last n elements. | |
fun DoubleArray.takeLastWhile( predicate: (Double) -> Boolean ): List<Double> Returns a list containing last elements satisfying the given predicate. | |
fun DoubleArray.takeWhile( predicate: (Double) -> Boolean ): List<Double> Returns a list containing first elements satisfying the given predicate. | |
fun <C : MutableCollection<in Double>> DoubleArray.toCollection( destination: C ): C Appends all elements to the given destination collection. | |
fun DoubleArray.toHashSet(): HashSet<Double> Returns a HashSet of all elements. | |
fun DoubleArray.toList(): List<Double> Returns a List containing all elements. | |
fun DoubleArray.toMutableList(): MutableList<Double> Returns a MutableList filled with all elements of this array. | |
fun DoubleArray.toMutableSet(): MutableSet<Double> Returns a mutable set containing all distinct elements from the given array. | |
fun DoubleArray.toSet(): Set<Double> Returns a Set of all elements. | |
fun DoubleArray.toSortedSet(): SortedSet<Double> Returns a SortedSet of all elements. | |
fun DoubleArray.toTypedArray(): Array<Double> Returns a typed object array containing all of the elements of this primitive array. | |
infix fun DoubleArray.union( other: Iterable<Double> ): Set<Double> Returns a set containing all distinct elements from both collections. | |
fun DoubleArray.withIndex(): Iterable<IndexedValue<Double>> Returns a lazy Iterable of IndexedValue for each element of the original array. | |
infix fun <R> any_array<R>.zip( other: Array<out R> ): List<Pair<Double, R>> Returns a list of pairs built from elements of both collections with same indexes. List has length of shortest collection. fun <R, V> any_array<R>.zip( other: Array<out R>, transform: (a: Double, b: R) -> V ): List<V> Returns a list of values built from elements of both collections with same indexes using provided transform. List has length of shortest collection. |
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