Ever wondered how to add new behavior to existing classes without modifying them? 🤔 Learn the Visitor Pattern—one of the most powerful design patterns in object-oriented programming. Why should you care? ✅ Helps keep your core classes clean ✨ ✅ Enables adding operations without modifying existing code 🔥 ✅ Follows the Open-Closed Principle (OCP) in SOLID Here’s a simple analogy: Imagine you own a mall 🏬. Customers (elements) visit the mall, and different staff members perform different tasks: Security checks the customer’s ID 🛂 Sales staff offer discounts 🏷 Customer service gathers feedback 💬 Each staff member is like a Visitor, performing a specific operation without changing the customer! 🎯 Check out https://ilovedotnet.org/blogs/behavioral-design-pattern-visitor/ for code samples and in browser demo.