Book Image

Mastering JavaScript Object-Oriented Programming

Book Image

Mastering JavaScript Object-Oriented Programming

Overview of this book

ECMAScript 6 introduces several new Object-Oriented features that drastically change the way developers structure their projects. Web developers now have some advanced OOP functionality at their disposal to build large-scale applications in JavaScript. With this book, we'll provide you with a comprehensive overview of OOP principles in JavaScript and how they can be implemented to build sophisticated web applications. Kicking off with a subtle refresher on objects, we'll show you how easy it is to define objects with the new ES6 classes. From there, we'll fly you through some essential OOP principles, forming a base for you to get hands-on with encapsulation. You'll get to work with the different methods of inheritance and we'll show you how to avoid using inheritance with Duck Typing. From there, we'll move on to some advanced patterns for object creation and you'll get a strong idea of how to use interesting patterns to present data to users and to bind data. We'll use the famous promises to work with asynchronous processes and will give you some tips on how to organize your code effectively. You'll find out how to create robust code using SOLID principles and finally, we'll show you how to clearly define the goals of your application architecture to get better, smarter, and more effective coding. This book is your one-way ticket to becoming a JavaScript Jedi who can be counted on to deliver flexible and maintainable code.
Table of Contents (18 chapters)
Mastering JavaScript Object-Oriented Programming
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Summary


In this chapter, we explored the inheritance mechanism of JavaScript based on prototypes, which is objects that act as templates for other objects. We saw how objects can be linked each other through their prototypes to create a chain representing the inheritance hierarchy. Then, we talked about the creation of an inheritance relationship between constructor functions and about the simplicity of new ECMAScript 6 syntax for extending classes. Our discussion continued with the different ways to control inheritance: from overriding  methods and properties to the implementation of protected members, from the prevention of object extension to the creation of immutable objects.

The chapter concluded with some examples of implementation of multiple inheritance and with the use of the mixin pattern with constructor functions and classes.

The next chapter will discuss interoperability between objects. We will see how we can define contracts, how to specify them through interfaces, and how to...