Demo Socketio, Express, Babel

Use import / export instructions...

Nodejs Socketio CRUD Video tutorial

Install Dev Dependencies

npm i -D @babel/core @babel/node @babel/cli @babel/preset-env
npm i -D nodemon

Scripts

"scripts": {
  "build": "babel src/ -d dist/",
  "start": "node dist/index.js",
  "babe-node": "babel-node src/index.js",
  "dev": "nodemon src/index.js --exec ./node_modules/.bin/babel-node"
}

Install Dependencies

npm i dotenv

Configure dotenv

import { config } from "dotenv";
config();

export const PORT = process.env.PORT || 3000;

Install Dependencies 2

npm i express socket.io