/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

31 votes308 views4 answers
Express cors policy
Javascript Express
18 votes301 views3 answers
Fetch is not defined express
Javascript Express
15 votes263 views1 answer
How to set view engine in express
Javascript Express
0 vote260 views1 answer
Express fingerprint
Javascript Express
-1 vote276 views2 answers
Router vs app express
Javascript Express
0 vote263 views2 answers
Accept json data in express
Javascript Express
0 vote251 views1 answer
Mongoose express js post
Javascript Express
2 votes288 views2 answers
Express check if object is empty
Javascript Express
0 vote278 views1 answer
Express http to https
Javascript Express
0 vote228 views1 answer
Put route error express
Javascript Express