What is the difference between === and ==?

Short answer: == : Equality operator (converts type before comparing) === : Strict equality (no type conversion, checks type + value) Example: 5 == '5'; // true 5 === '5'; // false

Example code

== : Equality operator (converts type before comparing) === : Strict equality (no type conversion, checks type + value) Example: 5 == '5'; // true
5 === '5'; // false

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.