What is hoisting?

Short answer: Hoisting is JavaScript’s behavior of moving variable and function declarations to the top of their scope. Example: console.log(a); // undefined var a = 5;

Example code

Hoisting is JavaScript’s behavior of moving variable and function declarations to the top of their scope. Example: console.log(a); // undefined var a = 5;

Real-world example (ShopNest)

Prefer arrow functions for React/event callbacks in ShopNest so this is not accidentally rebound.

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.