express 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 expresscreate express app
## Command
$ npx express-generator
: 'For earlier Node versions, install the application generator as a global
npm package and then launch it':
$ npm install -g express-generator
$ express
## Display the command options with the -h option:
$ express -hCopyright © 2021 Codeinu
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