context-pattern

To minimize re-renders with React Context, use a useSyncExternalStore-based pattern to let components subscribe to specific state slices via selectors. This prevents unnecessary renders when unrelated context values change.

A type-safe React Context pattern for large apps requires a four-file structure: Context.tsx, types.ts, useContext.ts, and useSelectors.ts. This separates type definitions, context creation, and hook consumption for scalable shared state.

Create a selector hook by leveraging useSyncExternalStore with a Set for subscribers and useRef for state storage. Wrap dispatchers in useCallback to provide a lightweight, type-safe state management solution without external dependencies.

Yes, you can use useSyncExternalStore to build a type-safe React Context pattern that replaces heavier state management libraries. It provides scalable shared state with selectors and dispatchers suitable for large app refactors.

Avoid standard React Context for state management when frequent updates occur, as it triggers re-renders for all consumers. Instead, apply a useSyncExternalStore pattern with selectors to subscribe only to necessary state slices.