Express js example

//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

0 vote308 views1 answer
TypeError:Cannot read property 'reviews' of null express
Javascript Express
11 votes302 views4 answers
Node express setup
Javascript Express
0 vote292 views2 answers
Req.query express
Javascript Express
0 vote278 views1 answer
Try and catch express
Javascript Express
40 votes386 views4 answers
Get url params in express
Javascript Express
19 votes334 views6 answers
Body parser express
Javascript Express
13 votes320 views3 answers
Express post body undefined
Javascript Express
0 vote310 views1 answer
Render raw html in response with Express
Javascript Express
1 vote270 views4 answers
Express handlebars
Javascript Express
0 vote301 views1 answer
Node.js express export routes
Javascript Express