Context
Summary
Context storage API exposed on component handles.
Context values are keyed by provider component identity. get(Component)
reads the nearest ancestor instance whose component function is exactly
Component, so nested instances of the same provider shadow outer instances
while different component types remain independent.
Signature
interface Context<C> {
get<ComponentType>(component: ComponentType): ContextFrom<ComponentType>
get(component: symbol | ElementType): unknown
set(values: C): void
}
Methods
get<ComponentType>(component: ComponentType): ContextFrom<ComponentType>
Reads the nearest ancestor instance of the given component type. Read during render to observe replacement values on later renders.
Parameters
component
Provider component whose identity selects the context.
get(component: symbol | ElementType): unknown
Reads context without an inferred provider value type.
Parameters
component
Provider component identity.
set(values: C): void
Replaces this component's provided value without scheduling a render.
Call handle.update() when descendants should render with the new value.
Parameters
values
Value to provide to descendants.