Express

Express is a minimal and flexible Node.js web application framework that provides a lot of features for building web applications.

You can create an HTTP server by requiring the express module and calling app.listen(port) in your JavaScript file.

A middleware function in Express is a function that has access to the request object (req), the response object (res), and the next middleware function in the application's request-response cycle.

You can use the express.static() method to serve static files, or you can use a templating engine like EJS or Jade to render dynamic content.

Routing in Express refers to the process of mapping URLs to specific application behaviors. You can define routes using the app.get(), app.post(), etc., methods.

You can use error-handling middleware functions like next(err) or express.errorHandler() to catch and display errors in your application.

Yes, you can use Express with MongoDB. There are several packages available that provide a simple interface for interacting with MongoDB databases from within your Express application.

No, Express requires Node.js 14 or later to run. If you need to support earlier versions of Node.js, you may want to consider using a different web framework.