Any

Common
JVM
JS
Native
1.0
open class Any

The root of the Kotlin class hierarchy. Every Kotlin class has Any as a superclass.

Constructors

Common
JVM
JS
Native
1.0

<init>

The root of the Kotlin class hierarchy. Every Kotlin class has Any as a superclass.

<init>()

Functions

Common
JVM
JS
Native
1.0

equals

Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:

open operator fun equals(other: Any?): Boolean
Common
JVM
JS
Native
1.0

hashCode

Returns a hash code value for the object. The general contract of hashCode is:

open fun hashCode(): Int
Common
JVM
JS
Native
1.0

toString

Returns a string representation of the object.

open fun toString(): String

Extension Properties

Native
1.3

isFrozen

Checks if given object is null or frozen or permanent (i.e. instantiated at compile-time).

val Any?.isFrozen: Boolean
JVM
1.0

javaClass

Returns the runtime Java class of this object.

val <T : Any> T.javaClass: Class<T>
JS
1.1

jsClass

val <T : Any> T.jsClass: JsClass<T>

Extension Functions

Common
JVM
JS
Native
1.1

also

Calls the specified function block with this value as its argument and returns this value.

fun <T> T.also(block: (T) -> Unit): T
Common
JVM
JS
Native
1.0

apply

Calls the specified function block with this value as its receiver and returns this value.

fun <T> T.apply(block: T.() -> Unit): T
JS
1.1

asDynamic

Reinterprets this value as a value of the dynamic type.

fun Any?.asDynamic(): dynamic
Native
1.3

ensureNeverFrozen

This function ensures that if we see such an object during freezing attempt - freeze fails and FreezingException is thrown.

fun Any.ensureNeverFrozen()
Native
1.3

freeze

Freezes object subgraph reachable from this object. Frozen objects can be freely shared between threads/workers.

fun <T> T.freeze(): T
Common
JVM
JS
Native
1.3

hashCode

Returns a hash code value for the object or zero if the object is null.

fun Any?.hashCode(): Int
JS
1.1

iterator

Allows to iterate this dynamic object in the following cases:

operator fun dynamic.iterator(): Iterator<dynamic>
Common
JVM
JS
Native
1.0

let

Calls the specified function block with this value as its argument and returns its result.

fun <T, R> T.let(block: (T) -> R): R
Native
1.3

objcPtr

fun Any?.objcPtr(): NativePtr
Native
1.3

pin

fun <T : Any> T.pin(): Pinned<T>
Common
JVM
JS
Native
1.0

run

Calls the specified function block with this value as its receiver and returns its result.

fun <T, R> T.run(block: T.() -> R): R
Common
JVM
JS
Native
1.0

runCatching

Calls the specified function block with this value as its receiver and returns its encapsulated result if invocation was successful, catching and encapsulating any thrown exception as a failure.

fun <T, R> T.runCatching(block: T.() -> R): Result<R>
Common
JVM
JS
Native
1.1

takeIf

Returns this value if it satisfies the given predicate or null, if it doesn't.

fun <T> T.takeIf(predicate: (T) -> Boolean): T?
Common
JVM
JS
Native
1.1

takeUnless

Returns this value if it does not satisfy the given predicate or null, if it does.

fun <T> T.takeUnless(predicate: (T) -> Boolean): T?
Common
JVM
JS
Native
1.0

to

Creates a tuple of type Pair from this and that.

infix fun <A, B> A.to(that: B): Pair<A, B>
Native
1.3

uncheckedCast

fun <T> Any?.uncheckedCast(): T
JS
1.1

unsafeCast

Reinterprets this value as a value of the specified type T without any actual type checking.

fun <T> Any?.unsafeCast(): T
Native
1.3

usePinned

fun <T : Any, R> T.usePinned(block: (Pinned<T>) -> R): R

Inheritors

Common
JVM
JS
Native
1.1

AbstractCollection

Provides a skeletal implementation of the read-only Collection interface.

abstract class AbstractCollection<out E> : Collection<E>
Common
JVM
JS
Native
1.3

AbstractCoroutineContextElement

Base class for CoroutineContext.Element implementations.

abstract class AbstractCoroutineContextElement : Element
Common
JVM
JS
Native
1.1

AbstractCoroutineContextElement

Base class for CoroutineContext.Element implementations.

abstract class AbstractCoroutineContextElement : Element
Common
JVM
JS
Native
1.0

AbstractIterator

A base class to simplify implementing iterators so that implementations only have to implement computeNext to implement the iterator, calling done when the iteration is complete.

abstract class AbstractIterator<T> : Iterator<T>
Common
JVM
JS
Native
1.1

AbstractMap

Provides a skeletal implementation of the read-only Map interface.

abstract class AbstractMap<K, out V> : Map<K, V>

AbstractMutableList

Provides a skeletal implementation of the MutableList interface.

Common
1.0
abstract class AbstractMutableList<E> : MutableList<E>
JVM
1.1
abstract class AbstractMutableList<E> : 
    MutableList<E>,
    AbstractList<E>
JS
Native
1.1
abstract class AbstractMutableList<E> : 
    AbstractMutableCollection<E>,
    MutableList<E>

AbstractMutableMap

Provides a skeletal implementation of the MutableMap interface.

Common
1.0
abstract class AbstractMutableMap<K, V> : MutableMap<K, V>
JVM
1.1
abstract class AbstractMutableMap<K, V> : 
    MutableMap<K, V>,
    AbstractMap<K, V>
JS
Native
1.1
abstract class AbstractMutableMap<K, V> : 
    AbstractMap<K, V>,
    MutableMap<K, V>

AbstractMutableSet

Provides a skeletal implementation of the MutableSet interface.

Common
1.0
abstract class AbstractMutableSet<E> : MutableSet<E>
JVM
1.1
abstract class AbstractMutableSet<E> : 
    MutableSet<E>,
    AbstractSet<E>
JS
1.1
abstract class AbstractMutableSet<E> : 
    AbstractMutableCollection<E>,
    MutableSet<E>
Native
1.1
abstract class AbstractMutableSet<E> : 
    AbstractSet<E>,
    MutableSet<E>
JS
1.1

AbstractWorker

Exposes the JavaScript AbstractWorker to Kotlin

interface AbstractWorker
Common
JVM
JS
Native
1.0

Accessor

Represents a property accessor, which is a get or set method declared alongside the property. See the Kotlin language documentation for more information.

interface Accessor<out R>
JS
1.1

AddEventListenerOptions

interface AddEventListenerOptions : EventListenerOptions
Common
JVM
JS
Native
1.0

Annotation

Base interface implicitly implemented by all annotation interfaces. See Kotlin language documentation for more information on annotations.

interface Annotation

Appendable

Common
JS
Native
1.0
interface Appendable
JVM
1.1
typealias Appendable = Appendable
Native
1.3

ArenaManager

object ArenaManager
Common
JVM
JS
Native
1.0

Array

Represents an array (specifically, a Java array when targeting the JVM platform). Array instances can be created using the arrayOf, arrayOfNulls and emptyArray standard library functions. See Kotlin language documentation for more information on arrays.

class Array<T>
JS
1.1

ArrayBuffer

Exposes the JavaScript ArrayBuffer to Kotlin

open class ArrayBuffer : BufferDataSource
JS
1.1

ArrayBufferView

Exposes the JavaScript ArrayBufferView to Kotlin

interface ArrayBufferView : BufferDataSource

ArrayList

Provides a MutableList implementation, which uses a resizable array as its backing storage.

Common
1.0
class ArrayList<E> : MutableList<E>, RandomAccess
JVM
1.1
typealias ArrayList<E> = ArrayList<E>
JS
1.1
open class ArrayList<E> : 
    AbstractMutableList<E>,
    MutableList<E>,
    RandomAccess
Native
1.3
class ArrayList<E> : 
    MutableList<E>,
    RandomAccess,
    AbstractMutableCollection<E>
JS
1.1

AssignedNodesOptions

interface AssignedNodesOptions
Native
1.3

AtomicInt

Atomic values and freezing: atomics AtomicInt, AtomicLong, AtomicNativePtr and AtomicReference are unique types with regard to freezing. Namely, they provide mutating operations, while can participate in frozen subgraphs. So shared frozen objects can have fields of atomic types.

class AtomicInt
Native
1.3

AtomicLong

class AtomicLong
Native
1.3

AtomicNativePtr

class AtomicNativePtr
Native
1.3

AtomicReference

An atomic reference to a frozen Kotlin object. Can be used in concurrent scenarious but frequently shall be of nullable type and be zeroed out (with compareAndSwap(get(), null)) once no longer needed. Otherwise memory leak could happen.

class AtomicReference<T>
JS
1.1

AudioTrack

abstract class AudioTrack : 
    UnionAudioTrackOrTextTrackOrVideoTrack
JS
1.1

BarProp

abstract class BarProp
JS
1.1

BinaryType

interface BinaryType
Native
1.3

BitSet

A vector of bits growing if necessary and allowing one to set/clear/read bits from it by a bit index.

class BitSet
JS
1.1

Blob

Exposes the JavaScript Blob to Kotlin

open class Blob
JS
1.1

BlobPropertyBag

interface BlobPropertyBag
JS
1.1

Body

Exposes the JavaScript Body to Kotlin

interface Body
Common
JVM
JS
Native
1.0

Boolean

Represents a value which is either true or false. On the JVM, non-nullable values of this type are represented as values of the primitive type boolean.

class Boolean : Comparable<Boolean>
Common
JVM
JS
Native
1.0

BooleanArray

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

class BooleanArray
Common
JVM
JS
Native
1.0

BooleanIterator

An iterator over a sequence of values of type Boolean.

abstract class BooleanIterator : Iterator<Boolean>
JS
1.1

BoxQuadOptions

interface BoxQuadOptions
JS
1.1

BufferDataSource

interface BufferDataSource
Common
JVM
JS
Native
1.3

BuilderInference

Allows to infer generic type arguments of a function from the calls in the annotated function parameter of that function.

annotation class BuilderInference
Common
JVM
JS
Native
1.0

ByteArray

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

class ByteArray
Common
JVM
JS
Native
1.0

ByteIterator

An iterator over a sequence of values of type Byte.

abstract class ByteIterator : Iterator<Byte>
JS
1.1

Cache

Exposes the JavaScript Cache to Kotlin

abstract class Cache
JS
1.1

CacheBatchOperation

interface CacheBatchOperation
JS
1.1

CacheQueryOptions

interface CacheQueryOptions
JS
1.1

CacheStorage

Exposes the JavaScript CacheStorage to Kotlin

abstract class CacheStorage
Common
JVM
JS
Native
1.3

CallsInPlace

An effect of calling a functional parameter in place.

interface CallsInPlace : Effect
JS
1.1

CanPlayTypeResult

interface CanPlayTypeResult
JS
1.1

CanvasCompositing

interface CanvasCompositing
JS
1.1

CanvasDirection

interface CanvasDirection
JS
1.1

CanvasDrawImage

interface CanvasDrawImage
JS
1.1

CanvasDrawPath

interface CanvasDrawPath
JS
1.1

CanvasFillRule

interface CanvasFillRule
JS
1.1

CanvasFillStrokeStyles

interface CanvasFillStrokeStyles
JS
1.1

CanvasFilters

interface CanvasFilters
JS
1.1

CanvasGradient

Exposes the JavaScript CanvasGradient to Kotlin

abstract class CanvasGradient
JS
1.1

CanvasHitRegion

interface CanvasHitRegion
JS
1.1

CanvasImageData

interface CanvasImageData
JS
1.1

CanvasImageSmoothing

interface CanvasImageSmoothing
JS
1.1

CanvasLineCap

interface CanvasLineCap
JS
1.1

CanvasLineJoin

interface CanvasLineJoin
JS
1.1

CanvasPath

interface CanvasPath
JS
1.1

CanvasPathDrawingStyles

interface CanvasPathDrawingStyles
JS
1.1

CanvasPattern

Exposes the JavaScript CanvasPattern to Kotlin

abstract class CanvasPattern
JS
1.1

CanvasRect

interface CanvasRect
JS
1.1

CanvasRenderingContext2D

Exposes the JavaScript CanvasRenderingContext2D to Kotlin

abstract class CanvasRenderingContext2D : 
    CanvasState,
    CanvasTransform,
    CanvasCompositing,
    CanvasImageSmoothing,
    CanvasFillStrokeStyles,
    CanvasShadowStyles,
    CanvasFilters,
    CanvasRect,
    CanvasDrawPath,
    CanvasUserInterface,
    CanvasText,
    CanvasDrawImage,
    CanvasHitRegion,
    CanvasImageData,
    CanvasPathDrawingStyles,
    CanvasTextDrawingStyles,
    CanvasPath,
    RenderingContext
JS
1.1

CanvasRenderingContext2DSettings

interface CanvasRenderingContext2DSettings
JS
1.1

CanvasShadowStyles

interface CanvasShadowStyles
JS
1.1

CanvasState

interface CanvasState
JS
1.1

CanvasText

interface CanvasText
JS
1.1

CanvasTextAlign

interface CanvasTextAlign
JS
1.1

CanvasTextBaseline

interface CanvasTextBaseline
JS
1.1

CanvasTextDrawingStyles

interface CanvasTextDrawingStyles
JS
1.1

CanvasTransform

interface CanvasTransform
JS
1.1

CanvasUserInterface

interface CanvasUserInterface
JS
1.1

CaretPosition

Exposes the JavaScript CaretPosition to Kotlin

abstract class CaretPosition
Native
1.3

CEnum

interface CEnum
Common
JVM
JS
Native
1.0

Char

Represents a 16-bit Unicode character.

class Char : Comparable<Char>
Common
JVM
JS
Native
1.0

CharArray

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

class CharArray
Common
JVM
JS
Native
1.0

CharIterator

An iterator over a sequence of values of type Char.

abstract class CharIterator : Iterator<Char>
Common
JVM
JS
Native
1.0

CharProgression

A progression of values of type Char.

open class CharProgression : Iterable<Char>
Common
JVM
JS
Native
1.0

CharSequence

Represents a readable sequence of Char values.

interface CharSequence
JVM
1.0

Charsets

Constant definitions for the standard charsets. These charsets are guaranteed to be available on every implementation of the Java platform.

object Charsets
JS
1.1

ChildNode

Exposes the JavaScript ChildNode to Kotlin

interface ChildNode
JS
1.1

Client

Exposes the JavaScript Client to Kotlin

abstract class Client : 
    UnionClientOrMessagePortOrServiceWorker
JS
1.1

ClientQueryOptions

interface ClientQueryOptions
JS
1.1

Clients

Exposes the JavaScript Clients to Kotlin

abstract class Clients
JS
1.1

ClientType

interface ClientType
Common
JVM
JS
Native
1.1

ClosedFloatingPointRange

Represents a range of floating point numbers. Extends ClosedRange interface providing custom operation lessThanOrEquals for comparing values of range domain type.

interface ClosedFloatingPointRange<T : Comparable<T>> : 
    ClosedRange<T>
Common
JVM
JS
Native
1.0

ClosedRange

Represents a range of values (for example, numbers or characters). See the Kotlin language documentation for more information.

interface ClosedRange<T : Comparable<T>>
JS
1.1

CloseEventInit

interface CloseEventInit : EventInit
Native
1.3

CName

Makes top level function available from C/C++ code with the given name.

annotation class CName
Common
JVM
JS
Native
1.0

Collection

A generic collection of elements. Methods in this interface support only read-only access to the collection; read/write access is supported through the MutableCollection interface.

interface Collection<out E> : Iterable<E>
JS
1.1

ColorSpaceConversion

interface ColorSpaceConversion
Common
JVM
JS
Native
1.0

Comparable

Classes which inherit from this interface have a defined total ordering between their instances.

interface Comparable<in T>

Comparator

Common
JS
Native
1.0
interface Comparator<T>
JVM
1.1
typealias Comparator<T> = Comparator<T>
JS
1.1

CompositionEventInit

interface CompositionEventInit : UIEventInit
Common
JVM
JS
Native
1.3

ConditionalEffect

An effect of some condition being true after observing another effect of a function.

interface ConditionalEffect : Effect
JS
1.1

Console

Exposes the console API to Kotlin.

interface Console
Common
JVM
JS
Native
1.3

Continuation

Interface representing a continuation after a suspension point that returns value of type T.

interface Continuation<in T>
Common
JVM
JS
Native
1.1

Continuation

Interface representing a continuation after a suspension point that returns value of type T.

interface Continuation<in T>
Common
JVM
JS
Native
1.3

ContinuationInterceptor

Marks coroutine context element that intercepts coroutine continuations. The coroutines framework uses ContinuationInterceptor.Key to retrieve the interceptor and intercepts all coroutine continuations with interceptContinuation invocations.

interface ContinuationInterceptor : Element
Common
JVM
JS
Native
1.1

ContinuationInterceptor

Marks coroutine context element that intercepts coroutine continuations. The coroutines framework uses ContinuationInterceptor.Key to retrieve the interceptor and intercepts all coroutine continuations with interceptContinuation invocations.

interface ContinuationInterceptor : Element
Common
JVM
JS
Native
1.3

ContractBuilder

Provides a scope, where the functions of the contract DSL, such as returns, callsInPlace, etc., can be used to describe the contract of a function.

interface ContractBuilder
JS
1.1

ConvertCoordinateOptions

interface ConvertCoordinateOptions
Common
JVM
JS
Native
1.3

CoroutineContext

Persistent context for the coroutine. It is an indexed set of Element instances. An indexed set is a mix between a set and a map. Every element in this set has a unique Key. Keys are compared by reference.

interface CoroutineContext
Common
JVM
JS
Native
1.1

CoroutineContext

Persistent context for the coroutine. It is an indexed set of Element instances. An indexed set is a mix between a set and a map. Every element in this set has a unique Key. Keys are compared by reference.

interface CoroutineContext
JS
1.1

CSS

Exposes the JavaScript CSS to Kotlin

abstract class CSS
JS
1.1

CSSBoxType

interface CSSBoxType
JS
1.1

CSSRule

Exposes the JavaScript CSSRule to Kotlin

abstract class CSSRule
JS
1.1

CSSRuleList

Exposes the JavaScript CSSRuleList to Kotlin

abstract class CSSRuleList : ItemArrayLike<CSSRule>
JS
1.1

CSSStyleDeclaration

Exposes the JavaScript CSSStyleDeclaration to Kotlin

abstract class CSSStyleDeclaration : ItemArrayLike<String>
JS
1.1

CustomElementRegistry

Exposes the JavaScript CustomElementRegistry to Kotlin

abstract class CustomElementRegistry
JS
1.1

CustomEventInit

interface CustomEventInit : EventInit
Native
1.3

CValuesRef

Represents a reference to (possibly empty) sequence of C values. It can be either a stable pointer CPointer or a sequence of immutable values CValues.

abstract class CValuesRef<T : CPointed>
JS
1.1

DataTransfer

Exposes the JavaScript DataTransfer to Kotlin

abstract class DataTransfer
JS
1.1

DataTransferItem

Exposes the JavaScript DataTransferItem to Kotlin

abstract class DataTransferItem
JS
1.1

DataTransferItemList

Exposes the JavaScript DataTransferItemList to Kotlin

abstract class DataTransferItemList
JS
1.1

DataView

Exposes the JavaScript DataView to Kotlin

open class DataView : ArrayBufferView
JS
1.1

Date

Exposes the Date API to Kotlin.

class Date
Native
1.3

DeferScope

open class DeferScope
Common
JVM
JS
Native
1.0

Delegates

Standard property delegates.

object Delegates
Common
JVM
JS
Native
1.0

Deprecated

Marks the annotated class, function, property, variable or parameter as deprecated.

annotation class Deprecated
Native
1.3

DetachedObjectGraph

Detached object graph encapsulates transferrable detached subgraph which cannot be accessed externally, until it is attached with the attach extension function.

class DetachedObjectGraph<T>
JS
1.1

DocumentAndElementEventHandlers

interface DocumentAndElementEventHandlers
JS
1.1

DocumentOrShadowRoot

Exposes the JavaScript DocumentOrShadowRoot to Kotlin

interface DocumentOrShadowRoot
JS
1.1

DocumentReadyState

interface DocumentReadyState
JS
1.1

DOMImplementation

Exposes the JavaScript DOMImplementation to Kotlin

abstract class DOMImplementation
JS
1.1

DOMMatrixReadOnly

Exposes the JavaScript DOMMatrixReadOnly to Kotlin

open class DOMMatrixReadOnly
JS
1.1

DOMParser

Exposes the JavaScript DOMParser to Kotlin

open class DOMParser
JS
1.1

DOMPointInit

interface DOMPointInit
JS
1.1

DOMPointReadOnly

Exposes the JavaScript DOMPointReadOnly to Kotlin

open class DOMPointReadOnly
JS
1.1

DOMQuad

Exposes the JavaScript DOMQuad to Kotlin

open class DOMQuad
JS
1.1

DOMRectInit

interface DOMRectInit
JS
1.1

DOMRectList

interface DOMRectList : ItemArrayLike<DOMRect>
JS
1.1

DOMRectReadOnly

Exposes the JavaScript DOMRectReadOnly to Kotlin

open class DOMRectReadOnly
JS
1.1

DOMStringMap

Exposes the JavaScript DOMStringMap to Kotlin

abstract class DOMStringMap
JS
1.1

DOMTokenList

Exposes the JavaScript DOMTokenList to Kotlin

abstract class DOMTokenList : ItemArrayLike<String>
Common
JVM
JS
Native
1.0

DoubleArray

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

class DoubleArray
Common
JVM
JS
Native
1.0

DoubleIterator

An iterator over a sequence of values of type Double.

abstract class DoubleIterator : Iterator<Double>
JS
1.1

DragEventInit

interface DragEventInit : MouseEventInit
Common
JVM
JS
Native
1.1

DslMarker

When applied to annotation class X specifies that X defines a DSL language

annotation class DslMarker
Common
JVM
JS
Native
1.3

Effect

Represents an effect of a function invocation, either directly observable, such as the function returning normally, or a side-effect, such as the function's lambda parameter being called in place.

interface Effect
JS
1.1

ElementContentEditable

interface ElementContentEditable
JS
1.1

ElementCreationOptions

interface ElementCreationOptions
JS
1.1

ElementCSSInlineStyle

interface ElementCSSInlineStyle
JS
1.1

ElementDefinitionOptions

interface ElementDefinitionOptions
Common
JVM
JS
Native
1.3

EmptyCoroutineContext

An empty coroutine context.

object EmptyCoroutineContext : CoroutineContext, Serializable
Common
JVM
JS
Native
1.1

EmptyCoroutineContext

An empty coroutine context.

object EmptyCoroutineContext : CoroutineContext
Common
JVM
JS
Native
1.0

Entry

Represents a key/value pair held by a Map.

interface Entry<out K, out V>

Enum

The common base class of all enum classes. See the Kotlin language documentation for more information on enum classes.

Common
JVM
Native
1.0
abstract class Enum<E : Enum<E>> : Comparable<E>
JS
1.1
class Enum<T : Enum<T>> : Comparable<Enum<T>>
JS
1.1

ErrorEventInit

interface ErrorEventInit : EventInit
JS
1.1

Event

Exposes the JavaScript Event to Kotlin

open class Event
JS
1.1

EventInit

interface EventInit
JS
1.1

EventListener

Exposes the JavaScript EventListener to Kotlin

interface EventListener
JS
1.1

EventListenerOptions

interface EventListenerOptions
JS
1.1

EventModifierInit

interface EventModifierInit : UIEventInit
JS
1.1

EventSourceInit

interface EventSourceInit
JS
1.1

EventTarget

Exposes the JavaScript EventTarget to Kotlin

abstract class EventTarget
Common
JVM
JS
Native
1.2

Experimental

Signals that the annotated annotation class is a marker of an experimental API.

annotation class Experimental
Common
JVM
JS
Native
1.3

ExperimentalContracts

This marker distinguishes the experimental contract declaration API and is used to opt-in for that feature when declaring contracts of user functions.

annotation class ExperimentalContracts
Common
JVM
JS
Native
1.0

ExperimentalMultiplatform

The experimental multiplatform support API marker.

annotation class ExperimentalMultiplatform
Common
JVM
JS
Native
1.3

ExperimentalTypeInference

The experimental type inference augmenting annotations marker.

annotation class ExperimentalTypeInference
Common
JVM
JS
Native
1.0

ExperimentalUnsignedTypes

Marks the API that is dependent on the experimental unsigned types, including those types themselves.

annotation class ExperimentalUnsignedTypes
Native
1.3

ExportObjCClass

Makes Kotlin subclass of Objective-C class visible for runtime lookup after Kotlin main function gets invoked.

annotation class ExportObjCClass
JS
1.1

ExtendableEventInit

interface ExtendableEventInit : EventInit
JS
1.1

ExtendableMessageEventInit

interface ExtendableMessageEventInit : ExtendableEventInit
Common
JVM
JS
Native
1.0

ExtensionFunctionType

Signifies that the annotated functional type represents an extension function.

annotation class ExtensionFunctionType
JS
1.1

External

interface External
Native
1.3

ExternalObjCClass

annotation class ExternalObjCClass
JS
1.1

FetchEventInit

interface FetchEventInit : ExtendableEventInit
JS
1.1

FileList

Exposes the JavaScript FileList to Kotlin

abstract class FileList : ItemArrayLike<File>
JS
1.1

FilePropertyBag

interface FilePropertyBag : BlobPropertyBag
JS
1.1

FileReaderSync

Exposes the JavaScript FileReaderSync to Kotlin

open class FileReaderSync
JVM
1.0

FileTreeWalk

This class is intended to implement different file traversal methods. It allows to iterate through all files inside a given directory.

class FileTreeWalk : Sequence<File>
JS
1.1

Float32Array

Exposes the JavaScript Float32Array to Kotlin

open class Float32Array : ArrayBufferView
JS
1.1

Float64Array

Exposes the JavaScript Float64Array to Kotlin

open class Float64Array : ArrayBufferView
Common
JVM
JS
Native
1.0

FloatArray

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

class FloatArray
Common
JVM
JS
Native
1.0

FloatIterator

An iterator over a sequence of values of type Float.

abstract class FloatIterator : Iterator<Float>
JS
1.1

FocusEventInit

interface FocusEventInit : UIEventInit
JS
1.1

ForeignFetchEventInit

interface ForeignFetchEventInit : ExtendableEventInit
JS
1.1

ForeignFetchOptions

interface ForeignFetchOptions
JS
1.1

ForeignFetchResponse

interface ForeignFetchResponse
JS
1.1

FormData

Exposes the JavaScript FormData to Kotlin

open class FormData
JS
1.1

FrameType

interface FrameType
Common
JVM
JS
Native
1.0

Function

Represents a value of a functional type, such as a lambda, an anonymous function or a function reference.

interface Function<out R>
JVM
1.0

Function0

A function that takes 0 arguments.

interface Function0<out R> : Function<R>
JVM
1.0

Function1

A function that takes 1 argument.

interface Function1<in P1, out R> : Function<R>
JVM
1.0

Function10

A function that takes 10 arguments.

interface Function10<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, out R> : 
    Function<R>
JVM
1.0

Function11

A function that takes 11 arguments.

interface Function11<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, out R> : 
    Function<R>
JVM
1.0

Function12

A function that takes 12 arguments.

interface Function12<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, out R> : 
    Function<R>
JVM
1.0

Function13

A function that takes 13 arguments.

interface Function13<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, out R> : 
    Function<R>
JVM
1.0

Function14

A function that takes 14 arguments.

interface Function14<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, out R> : 
    Function<R>
JVM
1.0

Function15

A function that takes 15 arguments.

interface Function15<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, out R> : 
    Function<R>
JVM
1.0

Function16

A function that takes 16 arguments.

interface Function16<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, out R> : 
    Function<R>
JVM
1.0

Function17

A function that takes 17 arguments.

interface Function17<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, out R> : 
    Function<R>
JVM
1.0

Function18

A function that takes 18 arguments.

interface Function18<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, out R> : 
    Function<R>
JVM
1.0

Function19

A function that takes 19 arguments.

interface Function19<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, out R> : 
    Function<R>
JVM
1.0

Function2

A function that takes 2 arguments.

interface Function2<in P1, in P2, out R> : Function<R>
JVM
1.0

Function20

A function that takes 20 arguments.

interface Function20<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, out R> : 
    Function<R>
JVM
1.0

Function21

A function that takes 21 arguments.

interface Function21<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, out R> : 
    Function<R>
JVM
1.0

Function22

A function that takes 22 arguments.

interface Function22<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, in P22, out R> : 
    Function<R>
JVM
1.0

Function3

A function that takes 3 arguments.

interface Function3<in P1, in P2, in P3, out R> : Function<R>
JVM
1.0

Function4

A function that takes 4 arguments.

interface Function4<in P1, in P2, in P3, in P4, out R> : 
    Function<R>
JVM
1.0

Function5

A function that takes 5 arguments.

interface Function5<in P1, in P2, in P3, in P4, in P5, out R> : 
    Function<R>
JVM
1.0

Function6

A function that takes 6 arguments.

interface Function6<in P1, in P2, in P3, in P4, in P5, in P6, out R> : 
    Function<R>
JVM
1.0

Function7

A function that takes 7 arguments.

interface Function7<in P1, in P2, in P3, in P4, in P5, in P6, in P7, out R> : 
    Function<R>
JVM
1.0

Function8

A function that takes 8 arguments.

interface Function8<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, out R> : 
    Function<R>
JVM
1.0

Function9

A function that takes 9 arguments.

interface Function9<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, out R> : 
    Function<R>
JVM
1.3

FunctionN

A function that takes N >= 23 arguments.

interface FunctionN<out R> : Function<R>, FunctionBase<R>
Native
1.3

Future

Class representing abstract computation, whose result may become available in the future.

class Future<T>
JS
1.1

GeometryUtils

Exposes the JavaScript GeometryUtils to Kotlin

interface GeometryUtils
JS
1.1

GetNotificationOptions

interface GetNotificationOptions
JS
1.1

GetRootNodeOptions

interface GetRootNodeOptions
JS
1.1

GetSVGDocument

interface GetSVGDocument
Common
JVM
JS
Native
1.0

Getter

Getter of the property is a get method declared alongside the property.

interface Getter<out R> : Accessor<R>, KFunction<R>
Common
JVM
JS
Native
1.0

Getter

Getter of the property is a get method declared alongside the property.

interface Getter<out R> : Getter<R>, () -> R
Common
JVM
JS
Native
1.0

Getter

Getter of the property is a get method declared alongside the property.

interface Getter<T, out R> : Getter<R>, (T) -> R
Common
JVM
JS
Native
1.0

Getter

Getter of the property is a get method declared alongside the property.

interface Getter<D, E, out R> : Getter<R>, (D, E) -> R
JS
1.1

GlobalEventHandlers

Exposes the JavaScript GlobalEventHandlers to Kotlin

interface GlobalEventHandlers
JS
1.1

GlobalPerformance

interface GlobalPerformance
Common
JVM
JS
Native
1.1

Grouping

Represents a source of elements with a keyOf function, which can be applied to each element to get its key.

interface Grouping<T, out K>
JS
1.1

HashChangeEventInit

interface HashChangeEventInit : EventInit

HashMap

Hash table based implementation of the MutableMap interface.

Common
Native
1.0
class HashMap<K, V> : MutableMap<K, V>
JVM
1.1
typealias HashMap<K, V> = HashMap<K, V>
JS
1.1
open class HashMap<K, V> : 
    AbstractMutableMap<K, V>,
    MutableMap<K, V>

HashSet

The implementation of the MutableSet interface, backed by a HashMap instance.

Common
1.0
class HashSet<E> : MutableSet<E>
JVM
1.1
typealias HashSet<E> = HashSet<E>
JS
1.1
open class HashSet<E> : AbstractMutableSet<E>, MutableSet<E>
Native
1.3
class HashSet<E> : 
    MutableSet<E>,
    AbstractMutableCollection<E>,
    KonanSet<E>
JS
1.1

Headers

Exposes the JavaScript Headers to Kotlin

open class Headers
JS
1.1

History

Exposes the JavaScript History to Kotlin

abstract class History
JS
1.1

HitRegionOptions

interface HitRegionOptions
JS
1.1

HTMLAllCollection

abstract class HTMLAllCollection
JS
1.1

HTMLCollection

Exposes the JavaScript HTMLCollection to Kotlin

abstract class HTMLCollection : 
    UnionElementOrHTMLCollection,
    ItemArrayLike<Element>
JS
1.1

HTMLHyperlinkElementUtils

Exposes the JavaScript HTMLHyperlinkElementUtils to Kotlin

interface HTMLHyperlinkElementUtils
JS
1.1

HTMLOrSVGImageElement

interface HTMLOrSVGImageElement
JS
1.1

HTMLOrSVGScriptElement

interface HTMLOrSVGScriptElement
JS
1.1

ImageBitmap

Exposes the JavaScript ImageBitmap to Kotlin

abstract class ImageBitmap : TexImageSource
JS
1.1

ImageBitmapOptions

interface ImageBitmapOptions
JS
1.1

ImageBitmapRenderingContext

Exposes the JavaScript ImageBitmapRenderingContext to Kotlin

abstract class ImageBitmapRenderingContext
JS
1.1

ImageBitmapRenderingContextSettings

interface ImageBitmapRenderingContextSettings
JS
1.1

ImageData

Exposes the JavaScript ImageData to Kotlin

open class ImageData : TexImageSource
JS
1.1

ImageOrientation

interface ImageOrientation
JS
1.1

ImageSmoothingQuality

interface ImageSmoothingQuality
Native
1.3

ImmutableBlob

An immutable compile-time array of bytes.

class ImmutableBlob
Common
JVM
JS
Native
1.0

IndexedValue

Data class representing a value from a collection or sequence, along with its index in that collection or sequence.

data class IndexedValue<out T>
JS
1.1

InputEventInit

interface InputEventInit : UIEventInit
JS
1.1

Int16Array

Exposes the JavaScript Int16Array to Kotlin

open class Int16Array : ArrayBufferView
JS
1.1

Int32Array

Exposes the JavaScript Int32Array to Kotlin

open class Int32Array : ArrayBufferView
JS
1.1

Int8Array

Exposes the JavaScript Int8Array to Kotlin

open class Int8Array : ArrayBufferView
Common
JVM
JS
Native
1.0

IntArray

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

class IntArray
Native
1.3

InteropStubs

annotation class InteropStubs
Common
JVM
JS
Native
1.0

IntIterator

An iterator over a sequence of values of type Int.

abstract class IntIterator : Iterator<Int>
Common
JVM
JS
Native
1.0

IntProgression

A progression of values of type Int.

open class IntProgression : Iterable<Int>
JS
1.1

ItemArrayLike

interface ItemArrayLike<out T>
Common
JVM
JS
Native
1.0

Iterable

Classes that inherit from this interface can be represented as a sequence of elements that can be iterated over.

interface Iterable<out T>
Common
JVM
JS
Native
1.0

Iterator

An iterator over a collection or another entity that can be represented as a sequence of elements. Allows to sequentially access the elements.

interface Iterator<out T>
JS
1.1

JsClass

Represents the constructor of a class. Instances of JsClass can be passed to JavaScript APIs that expect a constructor reference.

interface JsClass<T : Any>
JS
1.1

JsModule

Denotes an external declaration that must be imported from native JavaScript library.

annotation class JsModule
Common
JS
1.0

JsName

Gives a declaration (a function, a property or a class) specific name in JavaScript.

annotation class JsName
JS
1.1

JsNonModule

Denotes an external declaration that can be used without module system.

annotation class JsNonModule
JS
1.1

Json

An interface for indexing access to a collection of key-value pairs, where type of key is String and type of value is Any?.

interface Json
JS
1.1

JSON

Exposes the JavaScript JSON object to Kotlin.

object JSON
JS
1.1

JsQualifier

Adds prefix to external declarations in a source file.

annotation class JsQualifier
Native
1.3

JsValue

open class JsValue
JVM
1.2

JvmDefault

Specifies that a JVM default method should be generated for non-abstract Kotlin interface member.

annotation class JvmDefault
Common
JVM
Native
1.0

JvmField

Instructs the Kotlin compiler not to generate getters/setters for this property and expose it as a field.

annotation class JvmField
Common
JVM
Native
1.0

JvmMultifileClass

Instructs the Kotlin compiler to generate a multifile class with top-level functions and properties declared in this file as one of its parts. Name of the corresponding multifile class is provided by the JvmName annotation.

annotation class JvmMultifileClass
Common
JVM
Native
1.0

JvmName

Specifies the name for the Java class or method which is generated from this element.

annotation class JvmName
Common
JVM
1.0

JvmOverloads

Instructs the Kotlin compiler to generate overloads for this function that substitute default parameter values.

annotation class JvmOverloads
Common
JVM
1.0

JvmStatic

Specifies that an additional static method needs to be generated from this element if it's a function. If this element is a property, additional static getter/setter methods should be generated.

annotation class JvmStatic
Common
JVM
1.0

JvmSuppressWildcards

Instructs compiler to generate or omit wildcards for type arguments corresponding to parameters with declaration-site variance, for example such as Collection<out T> has.

annotation class JvmSuppressWildcards
Common
JVM
1.0

JvmSynthetic

Sets ACC_SYNTHETIC flag on the annotated target in the Java bytecode.

annotation class JvmSynthetic
Common
JVM
1.0

JvmWildcard

Instructs compiler to generate wildcard for annotated type arguments corresponding to parameters with declaration-site variance.

annotation class JvmWildcard
Common
JVM
JS
Native
1.0

KAnnotatedElement

Represents an annotated element and allows to obtain its annotations. See the Kotlin language documentation for more information.

interface KAnnotatedElement

KCallable

Represents a callable entity, such as a function or a property.

Common
1.0
interface KCallable<out R>
JVM
JS
Native
1.0
interface KCallable<out R> : KAnnotatedElement

KClass

Represents a class and provides introspection capabilities. Instances of this class are obtainable by the ::class syntax. See the Kotlin language documentation for more information.

Common
1.0
interface KClass<T : Any>
JVM
JS
Native
1.0
interface KClass<T : Any> : 
    KDeclarationContainer,
    KAnnotatedElement,
    KClassifier
Common
JVM
JS
Native
1.1

KClassifier

A classifier is either a class or a type parameter.

interface KClassifier
Common
JVM
JS
Native
1.0

KDeclarationContainer

Represents an entity which may contain declarations of any other entities, such as a class or a package.

interface KDeclarationContainer
JS
1.1

KeyboardEventInit

interface KeyboardEventInit : EventModifierInit

KFunction

Represents a function with introspection capabilities.

Common
JVM
JS
1.0
interface KFunction<out R> : KCallable<R>, Function<R>
Native
1.3
interface KFunction<out R> : KCallable<R>
Native
1.3

KFunction0

interface KFunction0<out R> : () -> R, KFunction<R>
Native
1.3

KFunction1

interface KFunction1<in P1, out R> : (P1) -> R, KFunction<R>
Native
1.3

KFunction10

interface KFunction10<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10) -> R,
    KFunction<R>
Native
1.3

KFunction11

interface KFunction11<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11) -> R,
    KFunction<R>
Native
1.3

KFunction12

interface KFunction12<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12) -> R,
    KFunction<R>
Native
1.3

KFunction13

interface KFunction13<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13) -> R,
    KFunction<R>
Native
1.3

KFunction14

interface KFunction14<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14) -> R,
    KFunction<R>
Native
1.3

KFunction15

interface KFunction15<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15) -> R,
    KFunction<R>
Native
1.3

KFunction16

interface KFunction16<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16) -> R,
    KFunction<R>
Native
1.3

KFunction17

interface KFunction17<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17) -> R,
    KFunction<R>
Native
1.3

KFunction18

interface KFunction18<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18) -> R,
    KFunction<R>
Native
1.3

KFunction19

interface KFunction19<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19) -> R,
    KFunction<R>
Native
1.3

KFunction2

interface KFunction2<in P1, in P2, out R> : 
    (P1, P2) -> R,
    KFunction<R>
Native
1.3

KFunction20

interface KFunction20<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20) -> R,
    KFunction<R>
Native
1.3

KFunction21

interface KFunction21<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21) -> R,
    KFunction<R>
Native
1.3

KFunction22

interface KFunction22<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, in P22, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22) -> R,
    KFunction<R>
Native
1.3

KFunction3

interface KFunction3<in P1, in P2, in P3, out R> : 
    (P1, P2, P3) -> R,
    KFunction<R>
Native
1.3

KFunction4

interface KFunction4<in P1, in P2, in P3, in P4, out R> : 
    (P1, P2, P3, P4) -> R,
    KFunction<R>
Native
1.3

KFunction5

interface KFunction5<in P1, in P2, in P3, in P4, in P5, out R> : 
    (P1, P2, P3, P4, P5) -> R,
    KFunction<R>
Native
1.3

KFunction6

interface KFunction6<in P1, in P2, in P3, in P4, in P5, in P6, out R> : 
    (P1, P2, P3, P4, P5, P6) -> R,
    KFunction<R>
Native
1.3

KFunction7

interface KFunction7<in P1, in P2, in P3, in P4, in P5, in P6, in P7, out R> : 
    (P1, P2, P3, P4, P5, P6, P7) -> R,
    KFunction<R>
Native
1.3

KFunction8

interface KFunction8<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8) -> R,
    KFunction<R>
Native
1.3

KFunction9

interface KFunction9<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, out R> : 
    (P1, P2, P3, P4, P5, P6, P7, P8, P9) -> R,
    KFunction<R>
Common
JVM
JS
Native
1.0

KMutableProperty

Represents a property declared as a var.

interface KMutableProperty<R> : KProperty<R>
Common
JVM
JS
Native
1.0

KMutableProperty0

Represents a var-property without any kind of receiver.

interface KMutableProperty0<R> : 
    KProperty0<R>,
    KMutableProperty<R>
Common
JVM
JS
Native
1.0

KMutableProperty1

Represents a var-property, operations on which take one receiver as a parameter.

interface KMutableProperty1<T, R> : 
    KProperty1<T, R>,
    KMutableProperty<R>

KMutableProperty2

Represents a var-property, operations on which take two receivers as parameters.

Common
JVM
JS
1.0
interface KMutableProperty2<D, E, R> : 
    KProperty2<D, E, R>,
    KMutableProperty<R>
Native
1.3
interface KMutableProperty2<T1, T2, R> : 
    KProperty2<T1, T2, R>,
    KMutableProperty<R>
Common
JVM
JS
Native
1.1

KotlinVersion

Represents a version of the Kotlin standard library.

class KotlinVersion : Comparable<KotlinVersion>
Common
JVM
JS
Native
1.0

KParameter

Represents a parameter passed to a function or a property getter/setter, including this and extension receiver parameters.

interface KParameter : KAnnotatedElement
Common
JVM
JS
Native
1.0

KProperty

Represents a property, such as a named val or var declaration. Instances of this class are obtainable by the :: operator.

interface KProperty<out R> : KCallable<R>
Common
JVM
JS
Native
1.0

KProperty0

Represents a property without any kind of receiver. Such property is either originally declared in a receiverless context such as a package, or has the receiver bound to it.

interface KProperty0<out R> : KProperty<R>, () -> R
Common
JVM
JS
Native
1.0

KProperty1

Represents a property, operations on which take one receiver as a parameter.

interface KProperty1<T, out R> : KProperty<R>, (T) -> R

KProperty2

Represents a property, operations on which take two receivers as parameters, such as an extension property declared in a class.

Common
JVM
JS
1.0
interface KProperty2<D, E, out R> : KProperty<R>, (D, E) -> R
Native
1.3
interface KProperty2<T1, T2, out R> : 
    KProperty<R>,
    (T1, T2) -> R

KType

Represents a type. Type is usually either a class with optional type arguments, or a type parameter of some declaration, plus nullability.

Common
JVM
JS
1.0
interface KType : KAnnotatedElement
Native
1.3
interface KType
Common
JVM
JS
Native
1.1

KTypeParameter

Represents a declaration of a type parameter of a class or a callable. See the Kotlin language documentation for more information.

interface KTypeParameter : KClassifier
Common
JVM
JS
Native
1.1

KTypeProjection

Represents a type projection. Type projection is usually the argument to another type in a type usage. For example, in the type Array<out Number>, out Number is the covariant projection of the type represented by the class Number.

data class KTypeProjection
Common
JVM
JS
Native
1.0

Lazy

Represents a value with lazy initialization.

interface Lazy<out T>

LinkedHashMap

Hash table based implementation of the MutableMap interface, which additionally preserves the insertion order of entries during the iteration.

Common
1.0
class LinkedHashMap<K, V> : MutableMap<K, V>
JVM
1.1
typealias LinkedHashMap<K, V> = LinkedHashMap<K, V>
JS
1.1
open class LinkedHashMap<K, V> : 
    HashMap<K, V>,
    MutableMap<K, V>
Native
1.3
typealias LinkedHashMap<K, V> = HashMap<K, V>

LinkedHashSet

The implementation of the MutableSet interface, backed by a LinkedHashMap instance.

Common
1.0
class LinkedHashSet<E> : MutableSet<E>
JVM
1.1
typealias LinkedHashSet<E> = LinkedHashSet<E>
JS
1.1
open class LinkedHashSet<E> : HashSet<E>, MutableSet<E>
Native
1.3
typealias LinkedHashSet<V> = HashSet<V>
JS
1.1

LinkStyle

Exposes the JavaScript LinkStyle to Kotlin

interface LinkStyle
Common
JVM
JS
Native
1.0

List

A generic ordered collection of elements. Methods in this interface support only read-only access to the list; read/write access is supported through the MutableList interface.

interface List<out E> : Collection<E>
Common
JVM
JS
Native
1.0

ListIterator

An iterator over a collection that supports indexed access.

interface ListIterator<out T> : Iterator<T>
JS
1.1

Location

Exposes the JavaScript Location to Kotlin

abstract class Location
Common
JVM
JS
Native
1.0

LongArray

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

class LongArray
Common
JVM
JS
Native
1.0

LongIterator

An iterator over a sequence of values of type Long.

abstract class LongIterator : Iterator<Long>
Common
JVM
JS
Native
1.0

LongProgression

A progression of values of type Long.

open class LongProgression : Iterable<Long>
Common
JVM
JS
Native
1.0

Map

A collection that holds pairs of objects (keys and values) and supports efficiently retrieving the value corresponding to each key. Map keys are unique; the map holds only one value for each key. Methods in this interface support only read-only access to the map; read-write access is supported through the MutableMap interface.

interface Map<K, out V>

MatchGroup

Represents the results from a single capturing group within a MatchResult of Regex.

Common
1.0
class MatchGroup
JVM
JS
Native
1.0
data class MatchGroup
Common
JVM
JS
Native
1.0

MatchGroupCollection

Represents a collection of captured groups in a single match of a regular expression.

interface MatchGroupCollection : Collection<MatchGroup?>
Common
JVM
JS
Native
1.1

MatchNamedGroupCollection

Extends MatchGroupCollection by introducing a way to get matched groups by name, when regex supports it.

interface MatchNamedGroupCollection : MatchGroupCollection
Common
JVM
JS
Native
1.0

MatchResult

Represents the results from a single regular expression match.

interface MatchResult
JS
1.1

Math

Exposes the JavaScript Math object to Kotlin.

object Math
JS
1.1

MediaError

Exposes the JavaScript MediaError to Kotlin

abstract class MediaError
JS
1.1

MediaList

abstract class MediaList : ItemArrayLike<String>
JS
1.1

MediaQueryListEventInit

interface MediaQueryListEventInit : EventInit
JS
1.1

MessageChannel

Exposes the JavaScript MessageChannel to Kotlin

open class MessageChannel
JS
1.1

MessageEventInit

interface MessageEventInit : EventInit
JVM
1.3

Metadata

This annotation is present on any class file produced by the Kotlin compiler and is read by the compiler and reflection. Parameters have very short JVM names on purpose: these names appear in all generated class files, and we'd like to reduce their size.

annotation class Metadata
JS
1.1

MimeType

Exposes the JavaScript MimeType to Kotlin

abstract class MimeType
JS
1.1

MimeTypeArray

Exposes the JavaScript MimeTypeArray to Kotlin

abstract class MimeTypeArray : ItemArrayLike<MimeType>
JS
1.1

MouseEventInit

interface MouseEventInit : EventModifierInit
Common
JVM
JS
Native
1.0

MustBeDocumented

This meta-annotation determines that an annotation is a part of public API and therefore should be included in the generated documentation for the element to which the annotation is applied.

annotation class MustBeDocumented
Common
JVM
JS
Native
1.0

MutableCollection

A generic collection of elements that supports adding and removing elements.

interface MutableCollection<E> : 
    Collection<E>,
    MutableIterable<E>
Common
JVM
JS
Native
1.0

MutableEntry

Represents a key/value pair held by a MutableMap.

interface MutableEntry<K, V> : Entry<K, V>
Common
JVM
JS
Native
1.0

MutableIterable

Classes that inherit from this interface can be represented as a sequence of elements that can be iterated over and that supports removing elements during iteration.

interface MutableIterable<out T> : Iterable<T>
Common
JVM
JS
Native
1.0

MutableIterator

An iterator over a mutable collection. Provides the ability to remove elements while iterating.

interface MutableIterator<out T> : Iterator<T>
Common
JVM
JS
Native
1.0

MutableList

A generic ordered collection of elements that supports adding and removing elements.

interface MutableList<E> : List<E>, MutableCollection<E>
Common
JVM
JS
Native
1.0

MutableListIterator

An iterator over a mutable collection that supports indexed access. Provides the ability to add, modify and remove elements while iterating.

interface MutableListIterator<T> : 
    ListIterator<T>,
    MutableIterator<T>
Common
JVM
JS
Native
1.0

MutableMap

A modifiable collection that holds pairs of objects (keys and values) and supports efficiently retrieving the value corresponding to each key. Map keys are unique; the map holds only one value for each key.

interface MutableMap<K, V> : Map<K, V>
Common
JVM
JS
Native
1.0

MutableSet

A generic unordered collection of elements that does not support duplicate elements, and supports adding and removing elements.

interface MutableSet<E> : Set<E>, MutableCollection<E>
JS
1.1

MutationObserver

Exposes the JavaScript MutationObserver to Kotlin

open class MutationObserver
JS
1.1

MutationObserverInit

interface MutationObserverInit
JS
1.1

MutationRecord

Exposes the JavaScript MutationRecord to Kotlin

abstract class MutationRecord
JS
1.1

NamedNodeMap

Exposes the JavaScript NamedNodeMap to Kotlin

abstract class NamedNodeMap : ItemArrayLike<Attr>
JS
1.1

native

annotation class native
Native
1.3

NativeFreeablePlacement

interface NativeFreeablePlacement : NativePlacement
JS
1.1

nativeGetter

annotation class nativeGetter
Native
1.3

nativeHeap

object nativeHeap : NativeFreeablePlacement
JS
1.1

nativeInvoke

annotation class nativeInvoke
Native
1.3

NativePlacement

interface NativePlacement
Native
1.3

NativePointed

The entity which has an associated native pointer. Subtypes are supposed to represent interpretations of the pointed data or code.

open class NativePointed
Native
1.3

NativeRandom

abstract class NativeRandom
JS
1.1

nativeSetter

annotation class nativeSetter
JS
1.1

Navigator

Exposes the JavaScript Navigator to Kotlin

abstract class Navigator : 
    NavigatorID,
    NavigatorLanguage,
    NavigatorOnLine,
    NavigatorContentUtils,
    NavigatorCookies,
    NavigatorPlugins,
    NavigatorConcurrentHardware
JS
1.1

NavigatorConcurrentHardware

Exposes the JavaScript NavigatorConcurrentHardware to Kotlin

interface NavigatorConcurrentHardware
JS
1.1

NavigatorContentUtils

interface NavigatorContentUtils
JS
1.1

NavigatorCookies

interface NavigatorCookies
JS
1.1

NavigatorID

Exposes the JavaScript NavigatorID to Kotlin

interface NavigatorID
JS
1.1

NavigatorLanguage

Exposes the JavaScript NavigatorLanguage to Kotlin

interface NavigatorLanguage
JS
1.1

NavigatorOnLine

Exposes the JavaScript NavigatorOnLine to Kotlin

interface NavigatorOnLine
JS
1.1

NavigatorPlugins

Exposes the JavaScript NavigatorPlugins to Kotlin

interface NavigatorPlugins
JS
1.1

NodeFilter

Exposes the JavaScript NodeFilter to Kotlin

interface NodeFilter
JS
1.1

NodeIterator

Exposes the JavaScript NodeIterator to Kotlin

abstract class NodeIterator
JS
1.1

NodeList

Exposes the JavaScript NodeList to Kotlin

abstract class NodeList : ItemArrayLike<Node>
JS
1.1

NonDocumentTypeChildNode

Exposes the JavaScript NonDocumentTypeChildNode to Kotlin

interface NonDocumentTypeChildNode
JS
1.1

NonElementParentNode

interface NonElementParentNode
Common
JVM
JS
Native
1.0

Nothing

Nothing has no instances. You can use Nothing to represent "a value that never exists": for example, if a function has the return type of Nothing, it means that it never returns (always throws an exception).

class Nothing
JS
1.1

NotificationAction

interface NotificationAction
JS
1.1

NotificationDirection

interface NotificationDirection
JS
1.1

NotificationEventInit

interface NotificationEventInit : ExtendableEventInit
JS
1.1

NotificationOptions

interface NotificationOptions
JS
1.1

NotificationPermission

interface NotificationPermission
Common
JVM
JS
Native
1.0

Number

Superclass for all platform classes representing numeric values.

abstract class Number
Native
1.3

ObjCAction

Makes Kotlin method in Objective-C class accessible through Objective-C dispatch to be used as action sent by control in UIKit or AppKit.

annotation class ObjCAction
Native
1.3

ObjCBridge

annotation class ObjCBridge
Native
1.3

ObjCClass

interface ObjCClass : ObjCObject
Native
1.3

ObjCClassOf

interface ObjCClassOf<T : ObjCObject> : ObjCClass
Native
1.3

ObjCConstructor

annotation class ObjCConstructor
Native
1.3

ObjCFactory

annotation class ObjCFactory
Native
1.3

ObjCMethod

annotation class ObjCMethod
Native
1.3

ObjCObject

interface ObjCObject
Native
1.3

ObjCObjectBase

abstract class ObjCObjectBase : ObjCObject
Native
1.3

ObjCOutlet

Makes Kotlin property in Objective-C class settable through Objective-C dispatch to be used as IB outlet.

annotation class ObjCOutlet
Common
JVM
JS
Native
1.0

ObservableProperty

Implements the core logic of a property delegate for a read/write property that calls callback functions when changed.

abstract class ObservableProperty<T> : 
    ReadWriteProperty<Any?, T>
Common
JVM
JS
Native
1.0

OptionalExpectation

Marks an expected annotation class that it isn't required to have actual counterparts in all platforms.

annotation class OptionalExpectation
JS
1.1

PageTransitionEventInit

interface PageTransitionEventInit : EventInit
Common
JVM
JS
Native
1.0

Pair

Represents a generic pair of two values.

data class Pair<out A, out B> : Serializable
Common
JVM
JS
Native
1.1

ParameterName

Annotates type arguments of functional type and holds corresponding parameter name specified by the user in type declaration (if any).

annotation class ParameterName
JS
1.1

ParentNode

Exposes the JavaScript ParentNode to Kotlin

interface ParentNode
JS
1.1

Path2D

Exposes the JavaScript Path2D to Kotlin

open class Path2D : CanvasPath
JS
1.1

PerformanceNavigation

Exposes the JavaScript PerformanceNavigation to Kotlin

abstract class PerformanceNavigation
JS
1.1

PerformanceTiming

Exposes the JavaScript PerformanceTiming to Kotlin

abstract class PerformanceTiming
Native
1.3

Pinned

data class Pinned<out T : Any>
JS
1.1

Plugin

Exposes the JavaScript Plugin to Kotlin

abstract class Plugin : ItemArrayLike<MimeType>
JS
1.1

PluginArray

Exposes the JavaScript PluginArray to Kotlin

abstract class PluginArray : ItemArrayLike<Plugin>
JS
1.1

PopStateEventInit

interface PopStateEventInit : EventInit
JS
1.1

PremultiplyAlpha

interface PremultiplyAlpha
JS
1.1

ProgressEventInit

interface ProgressEventInit : EventInit
JS
1.1

Promise

Exposes the JavaScript Promise object to Kotlin.

open class Promise<out T>
JS
1.1

PromiseRejectionEventInit

interface PromiseRejectionEventInit : EventInit
Common
JVM
JS
Native
1.1

PublishedApi

When applied to a class or a member with internal visibility allows to use it from public inline functions and makes it effectively public.

annotation class PublishedApi
JVM
1.0

PurelyImplements

Instructs the Kotlin compiler to treat annotated Java class as pure implementation of given Kotlin interface. "Pure" means here that each type parameter of class becomes non-platform type argument of that interface.

annotation class PurelyImplements
Common
JVM
JS
Native
1.3

Random

An abstract class that is implemented by random number generator algorithms.

abstract class Random

RandomAccess

Marker interface indicating that the List implementation supports fast indexed access.

Common
JS
Native
1.0
interface RandomAccess
JVM
1.1
typealias RandomAccess = RandomAccess
JS
1.1

Range

Exposes the JavaScript Range to Kotlin

open class Range
Common
JVM
JS
Native
1.0

ReadOnlyProperty

Base interface that can be used for implementing property delegates of read-only properties.

interface ReadOnlyProperty<in R, out T>
Common
JVM
JS
Native
1.0

ReadWriteProperty

Base interface that can be used for implementing property delegates of read-write properties.

interface ReadWriteProperty<in R, T>

Regex

Represents an immutable regular expression.

Common
JS
Native
1.0
class Regex
JVM
1.0
class Regex : Serializable
JS
1.1

RegExp

Exposes the JavaScript RegExp object to Kotlin.

class RegExp
JS
1.1

RegExpMatch

Represents the return value of RegExp.exec.

interface RegExpMatch
JS
1.1

RegistrationOptions

interface RegistrationOptions
JS
1.1

RelatedEventInit

interface RelatedEventInit : EventInit
JS
1.1

RenderingContext

interface RenderingContext
Common
JVM
JS
Native
1.0

Repeatable

This meta-annotation determines that an annotation is applicable twice or more on a single code element

annotation class Repeatable
Common
JVM
JS
Native
1.0

ReplaceWith

Specifies a code fragment that can be used to replace a deprecated function, property or class. Tools such as IDEs can automatically apply the replacements specified through this annotation.

annotation class ReplaceWith
JS
1.1

Request

Exposes the JavaScript Request to Kotlin

open class Request : Body
JS
1.1

RequestCache

interface RequestCache
JS
1.1

RequestCredentials

interface RequestCredentials
JS
1.1

RequestDestination

interface RequestDestination
JS
1.1

RequestInit

interface RequestInit
JS
1.1

RequestMode

interface RequestMode
JS
1.1

RequestRedirect

interface RequestRedirect
JS
1.1

RequestType

interface RequestType
JS
1.1

ResizeQuality

interface ResizeQuality
JS
1.1

Response

Exposes the JavaScript Response to Kotlin

open class Response : Body
JS
1.1

ResponseInit

interface ResponseInit
JS
1.1

ResponseType

interface ResponseType
Common
JVM
JS
Native
1.3

RestrictsSuspension

Classes and interfaces marked with this annotation are restricted when used as receivers for extension suspend functions. These suspend extensions can only invoke other member or extension suspend functions on this particular receiver only and are restricted from calling arbitrary suspension functions.

annotation class RestrictsSuspension
Common
JVM
JS
Native
1.1

RestrictsSuspension

Classes and interfaces marked with this annotation are restricted when used as receivers for extension suspend functions. These suspend extensions can only invoke other member or extension suspend functions on this particular receiver only and are restricted from calling arbitrary suspension functions.

annotation class RestrictsSuspension
Common
JVM
JS
Native
1.0

Result

A discriminated union that encapsulates successful outcome with a value of type T or a failure with an arbitrary Throwable exception.

class Result<out T> : Serializable
Native
1.3

Retain

Preserve the function entry point during global optimizations.

annotation class Retain
Common
JVM
JS
Native
1.0

Retention

This meta-annotation determines whether an annotation is stored in binary output and visible for reflection. By default, both are true.

annotation class Retention
Common
JVM
JS
Native
1.3

Returns

Describes a situation when a function returns normally with a given return value.

interface Returns : SimpleEffect
Common
JVM
JS
Native
1.3

ReturnsNotNull

Describes a situation when a function returns normally with any non-null return value.

interface ReturnsNotNull : SimpleEffect
JS
1.1

Screen

Exposes the JavaScript Screen to Kotlin

abstract class Screen
JS
1.1

ScrollBehavior

interface ScrollBehavior
JS
1.1

ScrollIntoViewOptions

interface ScrollIntoViewOptions : ScrollOptions
JS
1.1

ScrollLogicalPosition

interface ScrollLogicalPosition
JS
1.1

ScrollOptions

interface ScrollOptions
JS
1.1

ScrollRestoration

interface ScrollRestoration
JS
1.1

ScrollToOptions

interface ScrollToOptions : ScrollOptions
JS
1.1

SelectionMode

interface SelectionMode
Common
JVM
JS
Native
1.0

Sequence

A sequence that returns values through its iterator. The values are evaluated lazily, and the sequence is potentially infinite.

interface Sequence<out T>
Common
JVM
JS
Native
1.1

SequenceBuilder

Builder for a Sequence or an Iterator, provides yield and yieldAll suspension functions.

abstract class SequenceBuilder<in T>
Common
JVM
JS
Native
1.3

SequenceScope

The scope for yielding values of a Sequence or an Iterator, provides yield and yieldAll suspension functions.

abstract class SequenceScope<in T>
JS
1.1

ServiceWorkerMessageEventInit

interface ServiceWorkerMessageEventInit : EventInit
JS
1.1

ServiceWorkerState

interface ServiceWorkerState
Common
JVM
JS
Native
1.0

Set

A generic unordered collection of elements that does not support duplicate elements. Methods in this interface support only read-only access to the set; read/write access is supported through the MutableSet interface.

interface Set<out E> : Collection<E>
Common
JVM
JS
Native
1.0

Setter

Setter of the property is a set method declared alongside the property.

interface Setter<R> : Accessor<R>, KFunction<Unit>
Common
JVM
JS
Native
1.0

Setter

Setter of the property is a set method declared alongside the property.

interface Setter<R> : Setter<R>, (R) -> Unit
Common
JVM
JS
Native
1.0

Setter

Setter of the property is a set method declared alongside the property.

interface Setter<T, R> : Setter<R>, (T, R) -> Unit
Common
JVM
JS
Native
1.0

Setter

Setter of the property is a set method declared alongside the property.

interface Setter<D, E, R> : Setter<R>, (D, E, R) -> Unit
JS
1.1

ShadowAnimation

open class ShadowAnimation
JS
1.1

ShadowRootInit

interface ShadowRootInit
JS
1.1

ShadowRootMode

interface ShadowRootMode
Native
1.3

SharedImmutable

Top level variable is immutable and so could be shared. PLEASE NOTE THAT THIS ANNOTATION MAY GO AWAY IN UPCOMING RELEASES.

annotation class SharedImmutable
Common
JVM
JS
Native
1.0

ShortArray

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

class ShortArray
Common
JVM
JS
Native
1.0

ShortIterator

An iterator over a sequence of values of type Short.

abstract class ShortIterator : Iterator<Short>
Common
JVM
JS
Native
1.3

SimpleEffect

An effect that can be observed after a function invocation.

interface SimpleEffect : Effect
Common
JVM
JS
Native
1.0

SinceKotlin

Specifies the first version of Kotlin where a declaration has appeared. Using the declaration and specifying an older API version (via the -api-version command line option) will result in an error.

annotation class SinceKotlin
JS
1.1

Slotable

Exposes the JavaScript Slotable to Kotlin

interface Slotable
Native
1.3

StableRef

This class provides a way to create a stable handle to any Kotlin object. After converting to CPointer it can be safely passed to native code e.g. to be received in a Kotlin callback.

data class StableRef<out T : Any>
JS
1.1

Storage

Exposes the JavaScript Storage to Kotlin

abstract class Storage
JS
1.1

StorageEventInit

interface StorageEventInit : EventInit
Common
JVM
1.0

Strictfp

Marks the JVM method generated from the annotated function as strictfp, meaning that the precision of floating point operations performed inside the method needs to be restricted in order to achieve better portability.

annotation class Strictfp
Common
JVM
JS
Native
1.0

String

The String class represents character strings. All string literals in Kotlin programs, such as "abc", are implemented as instances of this class.

class String : Comparable<String>, CharSequence

StringBuilder

Common
JS
1.0
class StringBuilder : Appendable, CharSequence
JVM
1.1
typealias StringBuilder = StringBuilder
Native
1.3
class StringBuilder : CharSequence, Appendable
JS
1.1

StyleSheet

Exposes the JavaScript StyleSheet to Kotlin

abstract class StyleSheet
JS
1.1

StyleSheetList

Exposes the JavaScript StyleSheetList to Kotlin

abstract class StyleSheetList : ItemArrayLike<StyleSheet>
Common
JVM
JS
Native
1.0

Suppress

Suppresses the given compilation warnings in the annotated element.

annotation class Suppress
Native
1.3

SuspendFunction

Represents a value of a functional type, such as a lambda, an anonymous function or a function reference.

interface SuspendFunction<out R>
JS
1.1

SVGAngle

Exposes the JavaScript SVGAngle to Kotlin

abstract class SVGAngle
JS
1.1

SVGAnimatedAngle

Exposes the JavaScript SVGAnimatedAngle to Kotlin

abstract class SVGAnimatedAngle
JS
1.1

SVGAnimatedBoolean

Exposes the JavaScript SVGAnimatedBoolean to Kotlin

abstract class SVGAnimatedBoolean
JS
1.1

SVGAnimatedEnumeration

Exposes the JavaScript SVGAnimatedEnumeration to Kotlin

abstract class SVGAnimatedEnumeration
JS
1.1

SVGAnimatedInteger

Exposes the JavaScript SVGAnimatedInteger to Kotlin

abstract class SVGAnimatedInteger
JS
1.1

SVGAnimatedLength

Exposes the JavaScript SVGAnimatedLength to Kotlin

abstract class SVGAnimatedLength
JS
1.1

SVGAnimatedLengthList

Exposes the JavaScript SVGAnimatedLengthList to Kotlin

abstract class SVGAnimatedLengthList
JS
1.1

SVGAnimatedNumber

Exposes the JavaScript SVGAnimatedNumber to Kotlin

abstract class SVGAnimatedNumber
JS
1.1

SVGAnimatedNumberList

Exposes the JavaScript SVGAnimatedNumberList to Kotlin

abstract class SVGAnimatedNumberList
JS
1.1

SVGAnimatedPoints

Exposes the JavaScript SVGAnimatedPoints to Kotlin

interface SVGAnimatedPoints
JS
1.1

SVGAnimatedPreserveAspectRatio

Exposes the JavaScript SVGAnimatedPreserveAspectRatio to Kotlin

abstract class SVGAnimatedPreserveAspectRatio
JS
1.1

SVGAnimatedRect

Exposes the JavaScript SVGAnimatedRect to Kotlin

abstract class SVGAnimatedRect
JS
1.1

SVGAnimatedString

Exposes the JavaScript SVGAnimatedString to Kotlin

abstract class SVGAnimatedString
JS
1.1

SVGAnimatedTransformList

Exposes the JavaScript SVGAnimatedTransformList to Kotlin

abstract class SVGAnimatedTransformList
JS
1.1

SVGBoundingBoxOptions

interface SVGBoundingBoxOptions
JS
1.1

SVGElementInstance

interface SVGElementInstance
JS
1.1

SVGFitToViewBox

interface SVGFitToViewBox
JS
1.1

SVGLength

Exposes the JavaScript SVGLength to Kotlin

abstract class SVGLength
JS
1.1

SVGLengthList

Exposes the JavaScript SVGLengthList to Kotlin

abstract class SVGLengthList
JS
1.1

SVGNameList

abstract class SVGNameList
JS
1.1

SVGNumber

Exposes the JavaScript SVGNumber to Kotlin

abstract class SVGNumber
JS
1.1

SVGNumberList

Exposes the JavaScript SVGNumberList to Kotlin

abstract class SVGNumberList
JS
1.1

SVGPointList

abstract class SVGPointList
JS
1.1

SVGPreserveAspectRatio

Exposes the JavaScript SVGPreserveAspectRatio to Kotlin

abstract class SVGPreserveAspectRatio
JS
1.1

SVGStringList

Exposes the JavaScript SVGStringList to Kotlin

abstract class SVGStringList
JS
1.1

SVGTests

Exposes the JavaScript SVGTests to Kotlin

interface SVGTests
JS
1.1

SVGTransform

Exposes the JavaScript SVGTransform to Kotlin

abstract class SVGTransform
JS
1.1

SVGTransformList

Exposes the JavaScript SVGTransformList to Kotlin

abstract class SVGTransformList
JS
1.1

SVGUnitTypes

Exposes the JavaScript SVGUnitTypes to Kotlin

interface SVGUnitTypes
JS
1.1

SVGURIReference

Exposes the JavaScript SVGURIReference to Kotlin

interface SVGURIReference
JS
1.1

SVGZoomAndPan

Exposes the JavaScript SVGZoomAndPan to Kotlin

interface SVGZoomAndPan
Native
1.3

SymbolName

Forces the compiler to use specified symbol name for the target external function.

annotation class SymbolName
Common
JVM
JS
1.0

Synchronized

Marks the JVM method generated from the annotated function as synchronized, meaning that the method will be protected from concurrent execution by multiple threads by the monitor of the instance (or, for static methods, the class) on which the method is defined.

annotation class Synchronized

Synchronized

JS
1.1
typealias Synchronized = Synchronized
Native
1.3
annotation class Synchronized
Common
JVM
JS
Native
1.0

Target

This meta-annotation indicates the kinds of code elements which are possible targets of an annotation.

annotation class Target
JS
1.1

TexImageSource

interface TexImageSource
JS
1.1

TextMetrics

Exposes the JavaScript TextMetrics to Kotlin

abstract class TextMetrics
JS
1.1

TextTrackCueList

abstract class TextTrackCueList
JS
1.1

TextTrackKind

interface TextTrackKind
JS
1.1

TextTrackMode

interface TextTrackMode
Native
1.3

ThreadLocal

Top level variable or object is thread local, and so could be mutable. One may use this annotation as the stopgap measure for singleton object immutability. PLEASE NOTE THAT THIS ANNOTATION MAY GO AWAY IN UPCOMING RELEASES.

annotation class ThreadLocal
Common
JVM
JS
Native
1.0

Throwable

The base class for all errors and exceptions. Only instances of this class can be thrown or caught.

open class Throwable
JVM
1.0

Throws

This annotation indicates what exceptions should be declared by a function when compiled to a JVM method.

annotation class Throws
Native
1.3

Throws

This annotation indicates what exceptions should be declared by a function when compiled to a platform method.

annotation class Throws
JS
1.1

TimeRanges

Exposes the JavaScript TimeRanges to Kotlin

abstract class TimeRanges
JS
1.1

Touch

Exposes the JavaScript Touch to Kotlin

abstract class Touch
JS
1.1

TrackEventInit

interface TrackEventInit : EventInit
Common
JVM
1.0

Transient

Marks the JVM backing field of the annotated property as transient, meaning that it is not part of the default serialized form of the object.

annotation class Transient
JS
1.1

TreeWalker

Exposes the JavaScript TreeWalker to Kotlin

abstract class TreeWalker
Common
JVM
JS
Native
1.0

Triple

Represents a triad of values

data class Triple<out A, out B, out C> : Serializable
Common
JVM
JS
Native
1.0

Typography

Defines names for Unicode symbols used in proper Typography.

object Typography
Common
JVM
JS
Native
1.3

UByte

class UByte : Comparable<UByte>
Common
JVM
JS
Native
1.3

UByteArray

class UByteArray : Collection<UByte>
Common
JVM
JS
Native
1.3

UByteIterator

An iterator over a sequence of values of type UByte.

abstract class UByteIterator : Iterator<UByte>
JS
1.1

UIEventInit

interface UIEventInit : EventInit
Common
JVM
JS
Native
1.3

UInt

class UInt : Comparable<UInt>
JS
1.1

Uint16Array

Exposes the JavaScript Uint16Array to Kotlin

open class Uint16Array : ArrayBufferView
JS
1.1

Uint32Array

Exposes the JavaScript Uint32Array to Kotlin

open class Uint32Array : ArrayBufferView
JS
1.1

Uint8Array

Exposes the JavaScript Uint8Array to Kotlin

open class Uint8Array : ArrayBufferView
JS
1.1

Uint8ClampedArray

Exposes the JavaScript Uint8ClampedArray to Kotlin

open class Uint8ClampedArray : ArrayBufferView
Common
JVM
JS
Native
1.3

UIntArray

class UIntArray : Collection<UInt>
Common
JVM
JS
Native
1.3

UIntIterator

An iterator over a sequence of values of type UInt.

abstract class UIntIterator : Iterator<UInt>
Common
JVM
JS
Native
1.3

UIntProgression

A progression of values of type UInt.

open class UIntProgression : Iterable<UInt>
Common
JVM
JS
Native
1.3

ULong

class ULong : Comparable<ULong>
Common
JVM
JS
Native
1.3

ULongArray

class ULongArray : Collection<ULong>
Common
JVM
JS
Native
1.3

ULongIterator

An iterator over a sequence of values of type ULong.

abstract class ULongIterator : Iterator<ULong>
Common
JVM
JS
Native
1.3

ULongProgression

A progression of values of type ULong.

open class ULongProgression : Iterable<ULong>
JS
1.1

UnionAudioTrackOrTextTrackOrVideoTrack

interface UnionAudioTrackOrTextTrackOrVideoTrack
JS
1.1

UnionClientOrMessagePortOrServiceWorker

interface UnionClientOrMessagePortOrServiceWorker
JS
1.1

UnionElementOrHTMLCollection

interface UnionElementOrHTMLCollection
JS
1.1

UnionElementOrMouseEvent

interface UnionElementOrMouseEvent
JS
1.1

UnionElementOrProcessingInstruction

interface UnionElementOrProcessingInstruction
JS
1.1

UnionElementOrRadioNodeList

interface UnionElementOrRadioNodeList
JS
1.1

UnionHTMLOptGroupElementOrHTMLOptionElement

interface UnionHTMLOptGroupElementOrHTMLOptionElement
JS
1.1

UnionMessagePortOrServiceWorker

interface UnionMessagePortOrServiceWorker
JS
1.1

UnionMessagePortOrWindow

interface UnionMessagePortOrWindow
Common
JVM
JS
Native
1.0

Unit

The type with only one value: the Unit object. This type corresponds to the void type in Java.

object Unit
Common
JVM
JS
Native
1.0

UnsafeVariance

Suppresses errors about variance conflict

annotation class UnsafeVariance
JS
1.1

URL

Exposes the JavaScript URL to Kotlin

open class URL
JS
1.1

URLSearchParams

Exposes the JavaScript URLSearchParams to Kotlin

open class URLSearchParams
Common
JVM
JS
Native
1.2

UseExperimental

Allows to use experimental API denoted by the given markers in the annotated file, declaration, or expression. If a declaration is annotated with UseExperimental, its usages are not required to opt-in to that experimental API.

annotation class UseExperimental
Common
JVM
JS
Native
1.3

UShort

class UShort : Comparable<UShort>
Common
JVM
JS
Native
1.3

UShortArray

class UShortArray : Collection<UShort>
Common
JVM
JS
Native
1.3

UShortIterator

An iterator over a sequence of values of type UShort.

abstract class UShortIterator : Iterator<UShort>
JS
1.1

ValidityState

Exposes the JavaScript ValidityState to Kotlin

abstract class ValidityState
JS
1.1

VideoTrack

abstract class VideoTrack : 
    UnionAudioTrackOrTextTrackOrVideoTrack
Common
JVM
JS
Native
1.0

Volatile

Marks the JVM backing field of the annotated property as volatile, meaning that writes to this field are immediately made visible to other threads.

annotation class Volatile

Volatile

JS
1.1
typealias Volatile = Volatile
Native
1.3
annotation class Volatile
Native
1.3

WeakReference

Class WeakReference encapsulates weak reference to an object, which could be used to either retrieve a strong reference to an object, or return null, if object was already destoyed by the memory manager.

class WeakReference<T : Any>
JS
1.1

WebGLActiveInfo

Exposes the JavaScript WebGLActiveInfo to Kotlin

abstract class WebGLActiveInfo
JS
1.1

WebGLContextAttributes

interface WebGLContextAttributes
JS
1.1

WebGLContextEventInit

interface WebGLContextEventInit : EventInit
JS
1.1

WebGLObject

abstract class WebGLObject
JS
1.1

WebGLRenderingContext

Exposes the JavaScript WebGLRenderingContext to Kotlin

abstract class WebGLRenderingContext : 
    WebGLRenderingContextBase,
    RenderingContext
JS
1.1

WebGLRenderingContextBase

interface WebGLRenderingContextBase
JS
1.1

WebGLShaderPrecisionFormat

Exposes the JavaScript WebGLShaderPrecisionFormat to Kotlin

abstract class WebGLShaderPrecisionFormat
JS
1.1

WebGLUniformLocation

Exposes the JavaScript WebGLUniformLocation to Kotlin

abstract class WebGLUniformLocation
JS
1.1

WheelEventInit

interface WheelEventInit : MouseEventInit
JS
1.1

WindowEventHandlers

Exposes the JavaScript WindowEventHandlers to Kotlin

interface WindowEventHandlers
JS
1.1

WindowLocalStorage

Exposes the JavaScript WindowLocalStorage to Kotlin

interface WindowLocalStorage
JS
1.1

WindowOrWorkerGlobalScope

Exposes the JavaScript WindowOrWorkerGlobalScope to Kotlin

interface WindowOrWorkerGlobalScope
JS
1.1

WindowSessionStorage

Exposes the JavaScript WindowSessionStorage to Kotlin

interface WindowSessionStorage
Native
1.3

Worker

Class representing worker.

class Worker
JS
1.1

WorkerLocation

Exposes the JavaScript WorkerLocation to Kotlin

abstract class WorkerLocation
JS
1.1

WorkerNavigator

Exposes the JavaScript WorkerNavigator to Kotlin

abstract class WorkerNavigator : 
    NavigatorID,
    NavigatorLanguage,
    NavigatorOnLine,
    NavigatorConcurrentHardware
JS
1.1

WorkerOptions

interface WorkerOptions
JS
1.1

WorkerType

interface WorkerType
JS
1.1

XMLHttpRequestResponseType

interface XMLHttpRequestResponseType
JS
1.1

XMLSerializer

Exposes the JavaScript XMLSerializer to Kotlin

open class XMLSerializer