js express npm code example
Example 1: npm express
$ npm install expressExample 2: require express server.js
const express = require('express')const app = express() app.get('/', function (req, res) { res.send('Hello World')}) app.listen(3000)$ npm install expressconst express = require('express')const app = express() app.get('/', function (req, res) { res.send('Hello World')}) app.listen(3000)