Context APIs

The Context APIs provide a dependency injection mechanism.

createContext()

Creates a new context map.

export function createContext<K, V>(init?: [K, V][]): Map<K, V>;

withContext()

Runs a function within a given context.

export function withContext<R>(ctx: Context, fn: () => R): R;

getContext()

Retrieves a value from the active context.

export function getContext<V>(key: KeyLike, fallback?: V): V | undefined;

setContext()

Sets a value in the active context.

export function setContext<V>(key: KeyLike, value: V): void;