Category: React

Capture URL params like /users/:id with useParams.

Nest routes for dashboards and shared layouts.

Choose local state, context, or external stores based on complexity.

Provide shared values (theme, auth user, locale) via Context.

Understand centralized store, actions, and reducers.

Build slices with createSlice and configureStore.

Connect components with useSelector and useDispatch.

Hold mutable values and DOM node references without re-rendering.

Memoize expensive derived values.

Memoize callback identities for optimized child renders.