npm run start
nodemon backend/server.js
npm i react react-dom
npm i -D webpack webpack-dev-server cross-env
npm i -D babel-loader babel-core babel-preset-es2015 babel-preset-react
dev cross-env NODE_ENV=development webpack-dev-server --hot
build cross-env NODE_ENV=production webpack
const path = require('path') let config = {
}
module.exports = config
{ "presets" : ["es2015", "react"] }