Before starting, ensure that you are using at least the latest LTS release of Node.js, once Node.js has been installed, we recommend to install yarn
npm i -g yarn
To install the required packages use
yarn install
When developing JavaScript locally you can use the watcher to make changes and have them compiled as you save as well as generate source maps.
yarn run watch:js
To build source maps you need to use
yarn run watch:js-dev
For building a single file use
yarn run build:js -- --file misc/drupal.es6.js
For linting css use
yarn run lint:css
For js there are two seperate configs you can use
yarn run lint:js
yarn run lint:js-passing