Make sure your contribution doesn't contain any ESLint errors. To check, run:
$ yarn lint
We recommend to enable ESLint integration in your code editor.
This project uses Prettier, so you don't have to worry about how to format the code.
If needed, you can force a reformat of all the code base using:
$ yarn format
We don't have a test suite (but feel free to submit one!). So make sure to describe the problem addressed by your pull request and how to test it.