express framework

  1. Install Express: bash npm install express

  2. Create an Express application: javascript const express = require('express'); const app = express();

  3. Define a route with a callback function: javascript app.get('/', (req, res) => { res.send('Hello, World!'); });

  4. Start the Express server: javascript const port = 3000; app.listen(port, () => { console.log(`Server is listening on port ${port}`); });

  5. Run the application: bash node your_app_filename.js

  6. Access the application in a web browser or a tool like curl: http://localhost:3000