tools.sass#

• Type: Object | Function
• Default:

const defaultOptions = {
  // CSS Source Map enabled by default in development environment
  sourceMap: isDev,
};

You can modify the config of sass-loader via tools.sass.

Object Type#

When tools.sass is Object type, it is merged with the default config through Object.assign. It should be noted that sassOptions is merged through deepMerge in a deep way.

For example:

export default {
  tools: {
    sass: {
      sourceMap: true,
    },
  },
};

Function Type#

When tools.sass is a Function, the default config is passed as the first parameter, which can be directly modified or returned as the final result. The second parameter provides some utility functions that can be called directly. For Example:

export default {
  tools: {
    sass(config) {
      // Modify sourceMap config
      config.additionalData = async (content, loaderContext) => {
        // ...
      };
    },
  },
};

Modifying Sass Version#

In some scenarios, if you need to use a specific version of Sass instead of the built-in Dart Sass v1 in Modern.js, you can install the desired Sass version in your project and set it up using the implementation option of the sass-loader.

export default {
  tools: {
    sass: {
      implementation: require('sass'),
    },
  },
};

Utility Function#

addExcludes#

• Type: (excludes: RegExp | RegExp[]) => void

Used to specify which files sass-loader does not compile, You can pass in one or more regular expressions to match the path of sass files, for example:

export default {
  tools: {
    sass(config, { addExcludes }) {
      addExcludes(/node_modules/);
    },
  },
};