Is Express a popular web framework for Node.js?

Yes, Express is one of the most popular web frameworks for Node.js. It provides a minimalistic and flexible set of tools for building web applications and APIs.

Express is widely used because of:

• Its simplicity and ease of learning.
• A large community and many plugins.
• Support for routing, middleware, and templating.

Example of a simple server in Express:

const express = require('express');
const app = express();

app.get('/', (req, res) => {
  res.send('Hello, Express!');
});

app.listen(3000, () => {
  console.log('Server started on port 3000');
});