JavaScript
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Why this exists Most JavaScript you deploy is written with classes : Node libraries (EventEmitter, Error, database clients), Angular services, NestJS controllers, test doubles. Reading them needs a small vocabulary…
JavaScript Basics: Classes, Inheritance, Private Fields and How Prototypes Work
Write and read JavaScript classes: constructors, getters and setters, static members, #private fields, extends and super, then see what classes are built on (the prototype chain), and what JSON and structuredClone do to a class instance.
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