Advanced React: State & Performance Optimization

Explain how the Context API provides a mechanism for prop drilling avoidance and its potential performance implications.

Describe the 'useReducer' hook and identify scenarios where it is preferable to 'useState' for managing complex state.

Explain how React batches state updates and the historical differences in batching behavior inside and outside of event handlers.

Describe common causes of unnecessary component re-renders and how to diagnose them using React DevTools.

Explain how 'React.memo' functions as a higher-order component for preventing re-renders.

Describe a strategy for code-splitting an application using 'React.lazy' and 'Suspense' to improve initial load time.