Express.js
/Beginner
Beginner Questions
Definition
Beginner interviews focus on the core fundamentals of what Express is, how routing works, and basic middleware concepts. ### Sample Questions 1. **What is Express.js and why do we use it?** 2. **What is the difference between `req.params` and `req.query`?** 3. **Explain how `app.get()` and `app.post()` differ.** 4. **What does the `next()` function do?** 5. **How do you serve static files like images in Express?**
Explain Like I'm New
Beginner interviews focus on the core fundamentals of what Express is, how routing works, and basic middleware concepts. ### Sample Questions 1.
Terminal Output
bash / terminal
# Example Answer for #2:
`req.params` extracts data directly from the URL path defined in the route (e.g., /users/:id).
`req.query` extracts optional data appended to the URL after a question mark (e.g., /users?sort=asc).
Interview Questions
basic
- What is the primary purpose of Beginner Questions in Express.js?
- How do you initialize Beginner Questions?
intermediate
- How does Beginner Questions integrate with other middleware components?
- Can you explain a common use case for Beginner Questions?
advanced
- What are the performance implications of Beginner Questions in a high-traffic production application?
- How would you debug issues related to Beginner Questions?
trick
- Is it possible to achieve the same result as Beginner Questions without using Express?