{ "name": "tang_app", "version": "1.0.0", "main": "index.js", "license": "MIT", "dependencies": { "@rails/webpacker": "^5.2.1" }, "devDependencies": { "webpack-dev-server": "^3.11.0" }, "scripts": { "build": "RAILS_ENV=development NODE_ENV=development bin/webpack --watch" } }