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 context value from the nearest ancestor instance of the given component type.

get(component: symbol | ElementType): unknown

Reads an unknown context value for an untyped lookup.

set(values: C): void

Replaces the current context value for this component instance.