kotlin-react-core/react

Package-level declarations

Types

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sealed external interface Action<in T> : ActionOrString<T>
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sealed external interface ActionOrString<in T>
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typealias ActionStateInstance1<S> = JsTuple3<S, () -> Unit, Boolean>
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typealias ActionStateInstance2<S, P> = JsTuple3<S, (payload: P) -> Unit, Boolean>
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external object Children
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sealed external interface ChildrenBuilder
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typealias Cleanup = () -> Unit
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sealed external interface CleanupBuilder
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abstract external class Component<P : Props, S : State>(props: P = definedExternally)
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sealed external interface ComponentType<in P : Props> : ElementType<P>
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sealed external interface Consumer<T> : ExoticComponent<ConsumerProps<T>>
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external interface ConsumerProps<T> : Props
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sealed external interface Context<T> : ContextType<T>
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sealed external interface ContextType<T> : HasDisplayName
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typealias Dispatch<A> = (action: A) -> Unit
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sealed external interface ElementType<in P : Props>
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external interface ErrorInfo
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sealed external interface ExoticComponent<in P : Props> : ComponentType<P>
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external interface FC<in P : Props> : ComponentType<P> , HasDisplayName
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sealed external interface ForwardRefExoticComponent<in P : PropsWithRef<*>> : NamedExoticComponent<P>
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sealed external interface FunctionStateInstance<T>
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sealed external interface HasDisplayName
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sealed external interface IntrinsicType<in P : PropsWithClassName> : ElementType<P> , Selector
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typealias Key = String
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sealed external interface MutableRefObject<T : Any> : RefObject<T>
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sealed external interface NamedExoticComponent<in P : Props> : ExoticComponent<P> , HasDisplayName
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typealias ProfilerOnRenderCallback = (id: String, phase: String, actualDuration: Number, baseDuration: Number, startTime: Number, commitTime: Number) -> Unit

The callback passed to {@link ProfilerProps.onRender}.

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external interface ProfilerProps : PropsWithChildren
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external interface Props
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external interface PropsWithChildren : Props, ChildrenBuilder
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external interface PropsWithClassName : Props
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external interface PropsWithRef<T : Any> : Props
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external interface PropsWithStyle : Props
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external interface PropsWithValue<V> : Props
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sealed external interface Provider<T> : ExoticComponent<ProviderProps<T>>
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abstract external class PureComponent<P : Props, S : State>(props: P = definedExternally) : Component<P, S>
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external interface RComponentClassStatics<P : Props, S : State, C : Context<*>?>
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typealias ReactDsl = JsoDsl
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sealed external interface ReactElement<P : Props> : ReactNode
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sealed external interface ReactNode
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sealed external interface ReactPortal : ReactElement<Props>
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typealias Reducer<S, A> = (state: S, action: A) -> S
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typealias ReducerInstance<S, A> = JsTuple2<S, Dispatch<A>>

Only works inside fc

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sealed external interface Ref<in T : Any>
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sealed external interface RefCallback<in T : Any> : Ref<T>
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sealed external interface RefObject<T : Any> : Ref<T>
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sealed external interface RefValueInstance<T>
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sealed external interface RequiredContext<T : Any> : ContextType<T>
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open class RStatics<P : Props, S : State, C : Component<P, S>, CTX : Context<*>?>(klazz: KClass<C>) : RComponentClassStatics<P, S, CTX>

Usage:

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external interface State
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sealed external interface StateInstance<T>

Only works inside fc

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sealed external interface StateSetter<T>
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external interface SuspenseProps : PropsWithChildren
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typealias TransitionFunction = () -> Unit
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typealias TransitionStartFunction = (callback: TransitionFunction) -> Unit

Properties

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val <P : Props> KClass<out Component<P, *>>.react: ComponentClass<P>
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Functions

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inline fun Action(noinline value: () -> Unit): Action<*>
inline fun <T> Action(noinline value: (T) -> Unit): Action<T>
inline fun Action(value: String): ActionOrString<*>
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inline fun <T> ActionOrString<T>.asActionOrNull(): Action<T>?
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external fun <P : Props> cloneElement(element: ReactElement<P>, props: P? = definedExternally, vararg children: ReactNode?): ReactElement<P>
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inline fun <P : Props> ComponentModule(default: ComponentType<P>): ComponentModule<P>
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external fun <T : Any> createContext(): Context<T?>
external fun <T> createContext(defaultValue: T): Context<T>
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external fun <P : Props> createElement(type: ElementType<P>, props: P? = definedExternally, vararg children: ReactNode?): ReactElement<P>
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external fun <T : Any> createRef(): RefObject<T>
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suspend operator fun <T> Action<T>.invoke(data: T)
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external fun isValidElement(element: Any?): Boolean
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fun <P : Props> kotlinMemo(type: ComponentType<P>): FC<P>
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external fun <P : Props> lazy(factory: () -> Promise<ComponentModule<P>>): ExoticComponent<P>
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external fun <P : Props> memo(type: ComponentType<P>, propsAreEqual: (P, P) -> Boolean = definedExternally): FC<P>
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inline fun ReactNode(source: ReadonlyArray<ReactNode>): ReactNode
inline fun ReactNode(source: Char): ReactNode
inline fun ReactNode(source: String): ReactNode
inline fun ReactNode(source: String?): ReactNode?
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inline fun <T : Any> RefCallback(noinline callback: (T?) -> Unit): RefCallback<T>
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fun <T : Any> setRef(ref: Ref<T>?, value: T?)

Original(https://github.com/mui/material-ui/blob/f0f33c6038f874d2f3ecc251a8ca5bc640424992/packages/mui-utils/src/setRef.ts#L16

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external fun startTransition(scope: TransitionFunction)
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inline fun <T> StateInstance(value: T, setter: StateSetter<T>): StateInstance<T>
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external fun <T> use(context: PromiseLike<T>): T
external fun <T> use(context: Context<T>): T
external fun <T : Any> use(context: RequiredContext<T>): T?
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fun <S> useActionState(initialState: S, permalink: String? = undefined, action: suspend CoroutineScope.(state: S) -> S): ActionStateInstance1<S>
fun <S, P> useActionState(initialState: S, permalink: String? = undefined, action: suspend CoroutineScope.(state: S, payload: P) -> S): ActionStateInstance2<S, P>
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inline fun <T : Function<*>> useCallback(vararg dependencies: Any?, callback: T): T

Only works inside fc

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external fun <T> useContext(context: Context<T>): T
external fun <T : Any> useContext(context: RequiredContext<T>): T?
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external fun <T : Any> useDebugValue(value: T, format: (value: T) -> Any = definedExternally)

Available since 16.8

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external fun <T> useDeferredValue(value: T): T

Available since 18.0

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fun useEffect(effect: suspend CoroutineScope.() -> Unit)
fun useEffect(vararg dependencies: Any?, effect: suspend CoroutineScope.() -> Unit)

Only works inside fc

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fun useEffectOnce(effect: suspend CoroutineScope.() -> Unit)

Only works inside fc

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fun useEffectOnceWithCleanup(effect: CleanupBuilder.() -> Unit)

Only works inside fc

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fun useEffectWithCleanup(effect: CleanupBuilder.() -> Unit)
fun useEffectWithCleanup(vararg dependencies: Any?, effect: CleanupBuilder.() -> Unit)

Only works inside fc

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fun <T : Any> useEqualState(): StateInstance<T?>
fun <T> useEqualState(initialValue: T): StateInstance<T>
fun <T> useEqualState(initializer: () -> T): StateInstance<T>
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external fun <T : Any> useFunctionState(): FunctionStateInstance<T?>
external fun <T> useFunctionState(initialValue: T): FunctionStateInstance<T>
external fun <T> useFunctionState(initializer: () -> T): FunctionStateInstance<T>
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external fun useId(): String

Available since 18.0

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inline fun <T : Any> useImperativeHandle(ref: Ref<T>?, vararg dependencies: Any?, noinline init: () -> T?)

Available since 16.8

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fun useInsertionEffect(effect: suspend CoroutineScope.() -> Unit)
fun useInsertionEffect(vararg dependencies: Any?, effect: suspend CoroutineScope.() -> Unit)

Only works inside fc

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fun useInsertionEffectWithCleanup(effect: CleanupBuilder.() -> Unit)
fun useInsertionEffectWithCleanup(vararg dependencies: Any?, effect: CleanupBuilder.() -> Unit)

Only works inside fc

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fun useLayoutEffect(effect: suspend CoroutineScope.() -> Unit)
fun useLayoutEffect(vararg dependencies: Any?, effect: suspend CoroutineScope.() -> Unit)

Only works inside fc

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fun useLayoutEffectOnce(effect: suspend CoroutineScope.() -> Unit)

Only works inside fc

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fun useLayoutEffectOnceWithCleanup(effect: CleanupBuilder.() -> Unit)

Only works inside fc

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fun useLayoutEffectWithCleanup(effect: CleanupBuilder.() -> Unit)
fun useLayoutEffectWithCleanup(vararg dependencies: Any?, effect: CleanupBuilder.() -> Unit)

Only works inside fc

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inline fun <T> useMemo(vararg dependencies: Any?, noinline callback: () -> T): T

Only works inside fc

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external fun <T> useOptimistic(passthrough: T): StateInstance<T>
external fun <T, A> useOptimistic(passthrough: T, reducer: (state: T, action: A) -> T): JsTuple2<T, (action: A) -> Unit>
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external fun <S : Any, A> useReducer(reducer: Reducer<S?, A>): ReducerInstance<S?, A>
external fun <S, A> useReducer(reducer: Reducer<S, A>, initialState: S): ReducerInstance<S, A>
external fun <S, A, I> useReducer(reducer: Reducer<S, A>, initializerArg: I, initializer: (I) -> S): ReducerInstance<S, A>

Only works inside fc

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external fun <T : Any> useRef(initialValue: T? = definedExternally): MutableRefObject<T>
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inline fun <T : Any> useRefCallback(vararg dependencies: Any?, noinline callback: (T?) -> Unit): RefCallback<T>
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external fun <T : Any> useRefState(): JsTuple2<T?, RefCallback<T>>
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inline fun <T : Any> useRefValue(): RefValueInstance<T?>
inline fun <T : Any> useRefValue(initialValue: T): RefValueInstance<T>

Only works inside fc

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fun <T : Any> useRequired(context: Context<T?>): T
fun <T : Any> useRequired(context: RequiredContext<T>): T
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fun <T : Any> useRequiredContext(context: Context<T?>): T
fun <T : Any> useRequiredContext(context: RequiredContext<T>): T
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external fun <T : Any> useState(): StateInstance<T?>
external fun <T> useState(initialValue: T): StateInstance<T>
external fun <T> useState(initializer: () -> T): StateInstance<T>

Only works inside fc

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external fun <Snapshot> useSyncExternalStore(subscribe: (onStoreChange: () -> Unit) -> Cleanup, getSnapshot: () -> Snapshot, getServerSnapshot: () -> Snapshot = definedExternally): Snapshot

Available since 18.0

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external fun useTransition(): TransitionInstance

Available since 18.0