Mid From PDF GoF Patterns Gang of Four Patterns

Separation of Concerns: ○ The Caretaker manages the mementos and provides the ability to undo?

Short answer: ctions. The TextEditor focuses only on managing and modifying the content, nd the Memento class simply holds the state. This separation of concerns makes the system more modular and easier to maintain.

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.
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