What is prototypal inheritance?

Short answer: JavaScript objects inherit properties and methods from other objects through prototypes. This allows reuse of methods and shared behavior. Example: const parent = { greet() { console.log("Hello"); } };

Example code

const child = Object.create(parent); child.greet(); // Hello

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.