how to get data send from a form express

To retrieve data sent from aTo retrieve data sent from a form in Node.js using Express, you can follow these steps:

1. First, you need to install the 'body-parser' package using npm if you haven't already. You can do this by running the command: npm install body-parser.

2. After installing 'body-parser', you should require it in your Node.js application by adding the following line of code: const bodyParser = require('body-parser').

3. Then, you need to use the bodyParser middleware in your Express application by adding the following line of code: app.use(bodyParser.urlencoded({ extended: true })).

4. Next, in your form submission route, you can access the form data using the request object. For example, if you have a form field with the name 'username', you can retrieve its value using: const username = req.body.username.

By following these steps, you can effectively retrieve data sent from a form in Node.js using Express.