How can I optimize performance in my React and Angular applications?

How can I optimize performance in my React and Angular applications?

To optimize performance, you can use techniques like code splitting, lazy loading, and memoization in React, and for Angular, consider using Ahead-of-Time (AOT) compilation and change detection strategies.

What is code splitting and how does it help?

Code splitting allows you to split your code into smaller chunks, which can be loaded on demand. This reduces the initial load time and improves performance.

Can you explain lazy loading in more detail?

Lazy loading is a technique where you load components or modules only when they are needed, rather than at the start. This can significantly improve the loading time of your application.

What are some best practices for memoization in React?

Best practices for memoization include using React's useMemo and useCallback hooks to prevent unnecessary re-renders and optimizing performance for expensive calculations.