Question 1

How to use sass-extract variables in a React app?

Accepted Answer

Integrate sass-extract into your build process, such as with webpack using sass-extract-loader, to import extracted variables as JSON. Then, pass them as props or context in React components for dynamic styling, like canvas or SVG rendering.

Question 2

sass-extract vs keeping styles in JSON: which should I choose?

Accepted Answer

Choose sass-extract if you want a single source of truth in Sass files to avoid duplication and ensure consistency with CSS. Use JSON if you need lightweight, static variables without Sass compilation overhead, but this may lead to style drift.

Question 3

Does sass-extract work with Dart Sass?

Accepted Answer

No, sass-extract is built on node-sass and libsass, so it's incompatible with Dart Sass. If you use Dart Sass, consider alternative extraction methods or tools, as node-sass is deprecated.

Question 4

How to filter out color variables when extracting with sass-extract?

Accepted Answer

Use the bundled 'filter' plugin in the extract options, specifying types to exclude, such as 'SassColor'. This will remove color variables from the output, streamlining the JSON for specific use cases.

Question 5

Can sass-extract handle variables with !default flags?

Accepted Answer

Yes, it extracts metadata including flags like !default in the declarations array, so you can see if a variable has default values, but the final computed value is always output regardless of overrides.

Question 6

What's the performance impact of sass-extract in a large codebase?

Accepted Answer

It can slow down builds due to double Sass compilation, especially with many imports. Optimize by caching results or using plugins to minimize extracted data, but expect some overhead compared to CSS-only compilation.

sass-extract

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