Data types are one of the basic features that ensure consistency throughout an application. Some operations can be made only on specific data types and checking if a value is of a valid data type is crucial to avoid runtime exceptions. Most compiled Object-Oriented Programming languages have a static type system that asks the developer to declare the allowed type of a variable and check the code before it runs. JavaScript is a dynamic language—it does not require you to declare a specific data type for a variable. Since the content of a variable can change during the execution, data type checking of its value is performed just when the value itself is used. Let's recall some basic notions with some examples.
Mastering JavaScript Object-Oriented Programming
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
Free Chapter
A Refresher of Objects
Diving into OOP Principles
Working with Encapsulation and Information Hiding
Inheriting and Creating Mixins
Defining Contracts with Duck Typing
Advanced Object Creation
Presenting Data to the User
Data Binding
Asynchronous Programming and Promises
Organizing Code
SOLID Principles
Customer Reviews