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If it looks like a duck and quacks like a duck, it should behave like a duck. The 'L' in SOLID is all about making sure your child classes are perfect stand-ins for their parents. Let's dive in.

Want to add new features without breaking old ones? The 'O' in SOLID is here to help. Let's explore the Open-Closed Principle and how to write code that's ready for the future.

Ever seen a class that does everything, including the dishes? Let's talk about the 'S' in SOLID—the Single Responsibility Principle—and why your classes should have only one job.

Ever seen a function with a dozen arguments? It's a recipe for confusion. Let's explore why keeping your function arguments to a minimum makes your code cleaner, easier to test, and more fun to work with.

Why let just anyone mess with your object's data? Learn how getters and setters act like bodyguards for your properties, keeping your code safe, flexible, and bug-free.