CSS Preprocessor vs CSS-in-JS: Which is Better?

What are the main differences between CSS preprocessors and CSS-in-JS?

CSS preprocessors like SASS and LESS extend CSS with features like variables and nesting, while CSS-in-JS libraries like styled-components allow you to write CSS directly in your JavaScript files, enabling dynamic styling.

Which approach is better for large-scale applications?

For large-scale applications, CSS-in-JS can be beneficial due to its ability to scope styles to components, reducing conflicts. However, CSS preprocessors can also be effective if you prefer a more traditional separation of concerns.

Are there any performance differences between the two?

Yes, CSS-in-JS can introduce runtime overhead since styles are generated on the fly, while preprocessors compile styles at build time, potentially leading to better performance.

Can I use both in the same project?

Yes, you can use both CSS preprocessors and CSS-in-JS in the same project. It often depends on your team's preferences and the specific needs of your application.