Object-Oriented Programming (OOP)

It is important to make a clear distinction between JavaScript objects and object-oriented programming (OOP). These are two very different things. The JavaScript object is simply a key-value pair that contains properties and methods. OOP, on the other hand, is a set of principles that can be used to write more organized and efficient code.

OOP is not required for modular JavaScript, but it contains many concepts relevant to modular JavaScript. The use of classes is an essential aspect of OOP that allows us to reuse code by creating classes and subclasses.

It teaches us to group related aspects of a program in a way that makes maintenance and debugging easier. It has a focus on classes and subclasses that makes reusing code more practical.

Historically, OOP became a popular way to deal with spaghetti code (messy, hard-to-read code) that was being commonly written in procedural code. Often, unorganized procedural code became fragile and rigid...