express js basic 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 expressexpress js server
const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;
app.get('/', (req, res) => {
res.send('<h1>Some HTML</h1>');
res.send('<p>Even more HTML</p>');
});
app.listen(PORT, () => console.log(`Server is listening on port ${PORT}`));create 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 -hrequire express server.js
const express = require('express')const app = express() app.get('/', function (req, res) { res.send('Hello World')}) app.listen(3000)node express
npm install express --saveexpress nodejs
Fast, unopinionated, minimalist web framework for Node.jsCopyright © 2021 Codeinu
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