How do you assess your knowledge and experience level with Express.js?

Express.js is a minimalistic and flexible web framework for Node.js that allows for quick creation of server applications and APIs.

My level of knowledge and experience with Express.js includes:

• Creating REST APIs using routes, middleware, and error handling.
• Working with request parameters, request body, and headers.
• Using middleware for authentication, logging, and CORS handling.
• Integrating with databases via ORM or drivers.

Example of a simple server in Express.js:

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

app.use(express.json());

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

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

If needed, I can further develop my skills by studying more complex patterns and optimizations.