$ npm install$ npm run devFirst build the app
$ npm run buildThen serve the app
$ npm run serveTo run all tests
$ npm run testTo run tests on files's changes
$ npm run test -- --watchTo run test of a specific file, install jest globally (npm install -g jest) and do a jest your-file.js or do this command
$ npm run test -- --findRelatedTests my-file.js$ npm run validate... is a shortcut which runs eslint, tests and verify that packages aren't outdated.