What is the difference between call stack and task queue?

Short answer: Call stack: Where function execution happens (synchronous). Task queue: Holds async callbacks (processed after stack is empty).

Example code

console.log("1"); setTimeout(() => console.log("2"), 0); console.log("3"); // Output: 1, 3, 2 Follow me on LinkedIn:

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.