Explanation

Answer Example

To optimize a React application, I would start by measuring performance using tools like React Profiler or Lighthouse. Key strategies include code-splitting with React.lazy and Suspense for efficient loading, memoization using React.memo or useMemo to avoid unnecessary re-renders, and optimizing state management by lifting state up or using libraries like Redux Toolkit. For instance, in a previous project, I reduced initial load time by 35% by implementing code-splitting and lazy loading for heavy components like charts. Additionally, I optimized the rendering of a dynamic data table by memoizing list items and using virtualization libraries like react-window.