Modern JavaScript from the Beginning - Second Edition - Class Inheritance

The video tutorial explains the concept of classes and prototypes in JavaScript, highlighting the abstraction provided by classes. It demonstrates creating a basic shape class and extending it to form a Rectangle class, showcasing inheritance. The tutorial further explores using methods in subclasses and introduces polymorphism with a Circle class. It concludes with an explanation of prototypes and instance checking, emphasizing the importance of understanding these concepts in object-oriented programming.

What new insight or understanding did you gain from this video?