What are the best practices for code splitting in web development?

What are the best practices for code splitting in web development?

Code splitting is a technique to split your code into smaller chunks, which can be loaded on demand. Best practices include using dynamic imports, leveraging libraries like React.lazy, and analyzing bundle sizes with tools like Webpack.

Can you explain how dynamic imports work?

Dynamic imports allow you to load modules asynchronously. Instead of importing everything at once, you can use the import() function to load a module only when it's needed, improving initial load time.

What tools can help me analyze my bundle sizes?

You can use tools like Webpack Bundle Analyzer, Source Map Explorer, or even built-in tools in frameworks like Next.js to visualize and analyze your bundle sizes.

Are there any downsides to code splitting?

Yes, while code splitting can improve load times, it can also introduce additional network requests, which may affect performance if not managed properly. It's important to balance the number of chunks.