What is recursion?

Short answer: A function that calls itself until a base condition is met. Example: function factorial(n) { if (n === 0) return 1; return n * factorial(n - 1); } console.log(factorial(5)); // 120

Example code

A function that calls itself until a base condition is met. Example: function factorial(n) { if (n === 0) return 1;
return n * factorial(n - 1);
} console.log(factorial(5)); // 120

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.