What is the role of the <form> tag?

Short answer: It collects user input and sends it to a server or script for processing.

Example code

<form action="/submit" method="POST"> <input type="text" name="username"> <button type="submit">Submit</button> </form> Key Takeaway: Forms are the foundation of user interaction on the web.

Real-world example (ShopNest)

ShopNest’s browser cart uses modern JavaScript: fetch APIs with async/await, modules, and clear error handling.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.