require.mjs
Require local JSON files in files utilizing the Node.js v8.5.0 .mjs/--experimental module system
Note: to get this functionality, please use this snippet.
Why not a module?
As I was working to get this functionality in place, I was running into issues with the lack of metavariables like __dirname (as referenced here) that would prove useful for use with path.resolve and fs.readFileSync.
The issue I was coming across was that the function would attempt to look for a file relative to wherever the function was declared. In my module, using index.mjs as a module imported into __tests__/requireDataJson.mjs would look for the required JSON file, data.json, at the project root (as a sibling of index.mjs); in a published package, this would result in the require() function looking in path/to/node_modules/require.mjs/dist/. (I've set the main property in the package to /dist/index.mjs)
If you think you can fix this issue, please feel free to file a Pull Request, or to discuss this further, file an Issue.
Contributing
Please fork this repo, and work under a branch titled fork.
Installing Dependencies
This project uses Yarn to manage dependencies. (More info here)
Run $ yarn to install dependencies.
Building
For development, run $ yarn run babel to build to /dist
For release, run $ yarn run build to check Flow types, run Prettier over files, and strips Flow types and minifies the code using Babel.
Other scripts
Run Flow to check type annotations:
$ yarn run flow
Run Prettier to auto-format .js, .mjs, and .json files:
$ yarn run prettier