Abstract Classes & Methods

Abstract classes serve as base blueprints that cannot be instantiated directly and require subclasses to implement abstract methods.

1. Introduction & Architecture

2. Deep Dive & Core Concepts

Unlike interfaces, abstract classes can include implementation details for shared methods alongside abstract method signatures.

3. Basic Code Example

4. Advanced Production Patterns

5. Interactive Code Playground

abstract class Animal { abstract makeSound(): void; }
class Dog extends Animal { makeSound() { console.log("Woof!"); } }
new Dog().makeSound();

6. Common Pitfalls & Edge Cases

7. Interview Q&A & Quizzes

Q: When should you use an Abstract Class instead of an Interface?

A: Use abstract classes when you need to provide shared concrete logic alongside mandatory contract methods.

8. Summary Comparison Table