Package kotlin.js

Functions and other APIs specific to the JavaScript platform.

Types

JS
1.1

Console

Exposes the console API to Kotlin.

interface Console
JS
1.1

Date

Exposes the Date API to Kotlin.

class Date
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

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

Math

Exposes the JavaScript Math object to Kotlin.

object Math
JS
1.1

Promise

Exposes the JavaScript Promise object to Kotlin.

open class Promise<out T>
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

Annotations

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

JsQualifier

Adds prefix to external declarations in a source file.

annotation class JsQualifier
JS
1.1

native

annotation class native
JS
1.1

nativeGetter

annotation class nativeGetter
JS
1.1

nativeInvoke

annotation class nativeInvoke
JS
1.1

nativeSetter

annotation class nativeSetter

Properties

JS
1.1

console

Exposes the console API to Kotlin.

val console: Console
JS
1.1

definedExternally

The property that can be used as a placeholder for statements and values that are defined in JavaScript.

val definedExternally: Nothing
JS
1.1

js

Obtains a constructor reference for the given KClass.

val <T : Any> KClass<T>.js: JsClass<T>
JS
1.1

jsClass

val <T : Any> T.jsClass: JsClass<T>
JS
1.1

kotlin

Obtains a KClass instance for the given constructor reference.

val <T : Any> JsClass<T>.kotlin: KClass<T>
JS
1.1

noImpl

val noImpl: Nothing
JS
1.1

undefined

Exposes the JavaScript undefined property to Kotlin.

val undefined: Nothing?

Functions

JS
1.1

add

Adds key-value pairs from other to this. Returns the original receiver.

fun Json.add(other: Json): Json
JS
1.1

asArray

Converts the result of RegExp.exec to an array where the first element contains the entire matched text and each subsequent element is the text matched by each capturing parenthesis.

fun RegExpMatch.asArray(): Array<out String?>
JS
1.1

asDynamic

Reinterprets this value as a value of the dynamic type.

fun Any?.asDynamic(): dynamic
JS
1.1

dateLocaleOptions

fun dateLocaleOptions(
    init: LocaleOptions.() -> Unit
): LocaleOptions
JS
1.1

eval

Exposes the JavaScript eval function to Kotlin.

fun eval(expr: String): dynamic
JS
1.1

get

Returns the entire text matched by RegExp.exec if the index parameter is 0, or the text matched by the capturing parenthesis at the given index.

operator fun RegExpMatch.get(index: Int): String?
JS
1.1

iterator

Allows to iterate this dynamic object in the following cases:

operator fun dynamic.iterator(): Iterator<dynamic>
JS
1.1

js

fun js(code: String): dynamic
JS
1.1

jsClass

fun <T : Any> jsClass(): JsClass<T>
JS
1.1

json

Returns a simple JavaScript object (as Json) using provided key-value pairs as names and values of its properties.

fun json(vararg pairs: Pair<String, Any?>): Json
JS
1.1

jsTypeOf

Function corresponding to JavaScript's typeof operator

fun jsTypeOf(a: Any?): String
JS
1.1

max

Returns the greater of two values.

fun Math.max(a: Long, b: Long): Long
JS
1.1

min

Returns the smaller of two values.

fun Math.min(a: Long, b: Long): Long
JS
1.1

parseFloat

fun parseFloat(
    s: String,
    radix: Int = definedExternally
): Double
JS
1.1

parseInt

fun parseInt(s: String): Int
fun parseInt(s: String, radix: Int = definedExternally): Int
JS
1.1

reset

Resets the regular expression so that subsequent RegExp.test and RegExp.exec calls will match starting with the beginning of the input string.

fun RegExp.reset()
JS
1.1

then

fun <T, S> Promise<Promise<T>>.then(
    onFulfilled: (T) -> S
): Promise<S>
fun <T, S> Promise<Promise<T>>.then(
    onFulfilled: (T) -> S,
    onRejected: (Throwable) -> S
): Promise<S>
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