What are the differences between CSS-in-JS and CSS Modules?

What are the differences between CSS-in-JS and CSS Modules?

CSS-in-JS is a technique where CSS is written within JavaScript files, allowing for dynamic styling. CSS Modules, on the other hand, are a way to write CSS that is scoped locally to the component, preventing style conflicts.

Can you explain the benefits of using CSS-in-JS?

Sure! CSS-in-JS allows for better component encapsulation, dynamic styling based on props, and easier maintenance since styles are co-located with components.

What about the advantages of CSS Modules?

CSS Modules provide a clear separation of styles and logic, prevent global namespace pollution, and are compatible with existing CSS preprocessors.

Which one is better for large applications?

It depends on the project requirements. CSS-in-JS can be more flexible for dynamic styles, while CSS Modules offer better performance and maintainability for larger codebases.

Are there any downsides to either approach?

Yes, CSS-in-JS can lead to larger bundle sizes and runtime performance issues, while CSS Modules may require additional configuration and can be less dynamic.