Executing ts-node scripts that leverage imported CSS modules

Is there a way to execute scripts that utilize css modules?

I am currently working on a typescript migration script that I would like to execute using ts-node. The ideal scenario would be to keep the script's dependencies separate from the React components in my codebase, but unfortunately that is not the case. The script eventually imports React components along with css modules, causing ts-node to fail due to its inability to comprehend css modules:

RenderableInline.tsx(4,20): error TS2307: Cannot find module './styles/RenderableInline.module.scss' or its corresponding type declarations.

Only webpack has the capability to understand and build css modules, thanks to the configuration done through a css-loader.

The closest solution I found was jest, which allows for mocking css modules to enable importing these files without errors. Here is a link to the documentation: https://jestjs.io/docs/webpack.

What approach can I take to run a typescript script that depends on css modules? Is there a way to achieve this using ts-node? Alternatively, does webpack offer a feature for executing scripts?

javascripttypescriptwebpackts-node

Answer №1

To ensure proper handling of .css files, it is recommended to include a global .d.ts file.

Create a file named src/global.d.ts with the following content:

declare module '*.module.css' {
  const classes: { [key: string]: string };
  export default classes;
}

Additionally, consider using the typescript-plugin-css-modules plugin for development assistance in VSCode, although it does not impact compilation.

While progress has been made in setting this up, there are difficulties integrating with ts-node-dev, likely due to limitations in how ts-node handles type files by default as outlined in the Missing Types section. Efforts to resolve this issue using the --files directive have proven challenging.

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