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Mastering JavaScript Object-Oriented Programming

You're reading from   Mastering JavaScript Object-Oriented Programming Advanced patterns, faster techniques, higher quality code

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Product type Paperback
Published in Jun 2016
Publisher Packt
ISBN-13 9781785889103
Length 292 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (13) Chapters Close

Preface 1. A Refresher of Objects FREE CHAPTER 2. Diving into OOP Principles 3. Working with Encapsulation and Information Hiding 4. Inheriting and Creating Mixins 5. Defining Contracts with Duck Typing 6. Advanced Object Creation 7. Presenting Data to the User 8. Data Binding 9. Asynchronous Programming and Promises 10. Organizing Code 11. SOLID Principles 12. Modern Application Architectures

Why inheritance?

Inheritance is one of the fundamentals principle in Object-Oriented Programming. It is usually defined as a is-a relationship between objects (or classes, if the language supports them).

Consider, for example, a generic person and a student. We can say that the student is a person that is a student inherits all features of a generic person, but he has a specialized profile—he studies. This is true for other specialized profiles such as a teacher, a lawyer, a singer, and so on.

The is-a relationship keyword, and thus inheritance, informally says that if an object A inherits from object B, then we say that A is B, that is, A is a specialized version of B. Sometimes, A is also said to be a derived object of B, while B is usually called the base object or parent object.

But, why do we need inheritance in Object-Oriented Programming? Since a derived object has all the features of the base object, inheritance can help to reduce code redundancy between similar objects by...

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