/Javascript/Express/Expressjs hello world

Expressjs hello world

//to run : node filename.js
const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

//visit localhost:3000
// assuming you have done 1) npm init 2) npm install express

Require express server.js

const express = require('express')const app = express() app.get('/', function (req, res) {  res.send('Hello World')}) app.listen(3000)

Source: npmjs.com

Sample express app

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

Source: expressjs.com

Similar codes

14 votes132 views2 answers
Check express version
Javascript Express
0 vote138 views1 answer
Insert a data into mongo using express
Javascript Express
0 vote150 views1 answer
Error: cannot find module 'html' express
Javascript Express
1 vote144 views2 answers
Express multer
Javascript Express
0 vote147 views1 answer
Npm express async handler
Javascript Express
24 votes147 views4 answers
Express js npm
Javascript Express
8 votes108 views1 answer
Express delete cookie
Javascript Express
0 vote148 views1 answer
Cannot GET express
Javascript Express
1 vote191 views1 answer
Expressjs create encrypted password
Javascript Express
0 vote138 views3 answers
How to serve React JS static files with express JS?
Javascript Express