What is a container in Bootstrap?

Short answer: A container wraps page content and provides horizontal padding. <div class="container">Content</div> <div class="container-fluid">Full width</div>

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.