Node.js >= v4 must be installed.
npm installin the app's root directory will install everything you need for development.
npm startwill run the app's development server at http://localhost:3000 with hot module reloading.
npm run buildcreates a production build by default.
To create a development build, set the
NODE_ENVenvironment variable to
developmentwhile running this command.
npm run cleanwill delete built resources.