Tutorial / Module 4

Classes & OOP

Prototypes, classes, inheritance, private fields, and when composition beats inheritance.

4.1 JavaScript Prototypes and the Prototype Chain Explained (with `class` Decoded) Read 4.2 JavaScript Classes Explained: Constructors, Methods, Inheritance, and the Desugaring Story Read 4.3 JavaScript Inheritance Patterns: Classes vs Composition vs Mixins Read 4.4 JavaScript Private Fields and Static Members: True Encapsulation with #name and static Read 4.5 JavaScript Mixins and Composition: When Inheritance is the Wrong Tool Read

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