What are some common mistakes to avoid in Express.js?

What are some common mistakes to avoid in Express.js?

Some common mistakes include not handling errors properly, using synchronous code, and not validating user input.

Can you explain why error handling is important?

Error handling is crucial because it helps prevent crashes and provides a better user experience by informing users of issues.

What about input validation? Why is that necessary?

Input validation is necessary to protect your application from malicious data and ensure that it behaves as expected.

Are there any best practices for structuring an Express.js app?

Yes, it's best to organize your app into modules, use middleware effectively, and keep your routes clean and manageable.