Recursive Evaluation:?

Short answer: The pattern allows for recursive evaluation of expressions. Complex expressions can be broken down into simpler expressions, and the results of those can be combined to form more complex evaluations.

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

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.