CSS Preprocessors 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, enabling dynamic styling based on props.

Which approach is better for large-scale applications?

It depends on your team's workflow and preferences. CSS-in-JS can be more flexible and maintainable for large applications, while preprocessors might be better for teams familiar with traditional CSS.

Are there any performance differences between the two?

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

Can I use both in the same project?

Absolutely! Many projects use a combination of both to leverage the strengths of each approach.

What are some popular CSS-in-JS libraries?

Some popular CSS-in-JS libraries include styled-components, Emotion, and JSS.