kotlin-js/js.objects/Object/Companion

Companion

object Companion(source)

Functions

assign

external fun <T : JsAny, R : T> assign(dest: R, vararg src: T?): R

MDN Reference

create

external fun <T : JsAny> create(o: T?, properties: PropertyDescriptorMap = definedExternally): T

MDN Reference

defineProperties

external fun <T : JsAny> defineProperties(o: T, properties: PropertyDescriptorMap): T

MDN Reference

defineProperty

external fun <T : JsAny, P : JsAny?> defineProperty(o: T, p: PropertyKey, attributes: TypedPropertyDescriptor<P>): T

external fun <T : JsAny, P : JsAny?> defineProperty(o: T, p: String, attributes: TypedPropertyDescriptor<P>): T

MDN Reference

entries

external fun entries(o: JsAny): ReadonlyArray<Tuple2<JsString, JsAny?>>

external fun <T : JsAny?> entries(o: ReadonlyRecord<JsString, T>): ReadonlyArray<Tuple2<JsString, T>>

MDN Reference

freeze

external fun <R : JsAny?, T : R> freeze(o: T): R

MDN Reference

fromEntries

external fun <T : JsAny?> fromEntries(entries: ReadonlyArray<Tuple2<JsString, T>>): ReadonlyRecord<JsString, T>

external fun <T : JsAny?> fromEntries(entries: JsIterable<Tuple2<JsString, T>>): ReadonlyRecord<JsString, T>

MDN Reference

getOwnPropertyDescriptor

external fun <T : JsAny?> getOwnPropertyDescriptor(o: JsAny, p: PropertyKey): TypedPropertyDescriptor<T>?

external fun <T : JsAny?> getOwnPropertyDescriptor(o: JsAny, p: String): TypedPropertyDescriptor<T>?

MDN Reference

getOwnPropertyNames

external fun getOwnPropertyNames(o: JsAny): ReadonlyArray<JsString>

MDN Reference

getOwnPropertySymbols

external fun getOwnPropertySymbols(o: JsAny): ReadonlyArray<Symbol>

MDN Reference

getPrototypeOf

external fun <P : JsAny, T : P> getPrototypeOf(o: T): P

MDN Reference

groupBy

external fun <T : JsAny, K : PropertyKey> groupBy(items: ReadonlyArray<T>, keySelector: (value: T, index: Int) -> K): ReadonlyRecord<K, ReadonlyArray<T>>

MDN Reference

hasOwn

external fun hasOwn(o: JsAny, v: PropertyKey): Boolean

external fun hasOwn(o: JsAny, v: String): Boolean

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external fun is(value1: JsAny?, value2: JsAny?): Boolean

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isExtensible

external fun isExtensible(o: JsAny): Boolean

MDN Reference

isFrozen

external fun isFrozen(o: JsAny): Boolean

MDN Reference

isSealed

external fun isSealed(o: JsAny): Boolean

MDN Reference

keys

external fun keys(o: JsAny): ReadonlyArray<JsString>

MDN Reference

preventExtensions

external fun <T : JsAny?> preventExtensions(o: T): T

MDN Reference

seal

external fun <T : JsAny?> seal(o: T): T

MDN Reference

setPrototypeOf

external fun <T : JsAny> setPrototypeOf(o: T, proto: JsAny?): T

MDN Reference

values

external fun values(o: JsAny): ReadonlyArray<JsAny?>

external fun <T : JsAny> values(o: ReadonlyRecord<*, T>): ReadonlyArray<T>

MDN Reference