Object-Oriented JavaScript: Subtypes, Inheritance, and Classes

Writing clean, maintainable code in JavaScript requires a deep understanding of how objects share behavior and data. Without a solid grasp of inheritance and subtypes, web applications can quickly become cluttered and difficult to scale. This text-based course guides you through the core concepts of object-oriented programming (OOP) in JavaScript, helping you transition from writing repetitive scripts to designing elegant, reusable, and structured code architectures using modern standards. What you'll learn: - Understand the foundational mechanics of prototype-based inheritance in JavaScript. - Implement clean class structures using modern ES6 class syntax, including constructors and inheritance. - Apply encapsulation techniques using private class fields and static methods to protect internal object states. - Design specialized subtypes that extend base behaviors without introducing unnecessary coupling. - Compare inheritance and composition patterns to choose the right architecture for your application. You will start with the fundamental terminology of objects and prototypes before exploring modern class syntax, inheritance chains, and design patterns. The course concludes with practical, text-based exercises demonstrating how to structure real-world application components. This course is designed for beginner-to-intermediate JavaScript developers who want to strengthen their software design skills. No advanced programming experience is required. Dive in to start writing cleaner, more structured JavaScript today.