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  • Object-Oriented JavaScript - Second Edition
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Object-Oriented JavaScript - Second Edition

Object-Oriented JavaScript - Second Edition

By : Stoyan Stefanov
4.6 (11)
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Object-Oriented JavaScript - Second Edition

Object-Oriented JavaScript - Second Edition

4.6 (11)
By: Stoyan Stefanov

Overview of this book

JavaScript is the behavior, the third pillar in today's paradigm that looks at web pages as something that consists of clearly distinguishable parts: content (HTML), presentation (CSS) and behavior (JavaScript). Using JavaScript, you can create not only web pages but also desktop widgets, browser and application extensions, and other pieces of software. It's a pretty good deal: you learn one language and then code all kinds of different applications. While there's one chapter specifically dedicated to the web browser environment including DOM, Events and AJAX tutorials, the rest is applicable to the other environments Many web developers have tried coding or adopting some bits of JavaScript, but it is time to "man up" and learn the language properly because it is the language of the browser and is, virtually, everywhere. This book starts from zero, not assuming any prior JavaScript programming knowledge and takes you through all the in-depth and exciting futures hidden behind the facade. Once listed in the "nice to have" sections of job postings, these days the knowledge of JavaScript is a deciding factor when it comes to hiring web developers. After reading this book you'll be prepared to ace your JavaScript job interview and even impress with some bits that the interviewer maybe didn't know. You should read this book if you want to be able to take your JavaScript skills to a new level of sophistication.
Table of Contents (14 chapters)
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Preface
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Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Object-oriented JavaScript
1. Object-oriented JavaScript
A bit of history
ECMAScript 5
Object-oriented programming
OOP summary
Setting up your training environment
Summary
2
2. Primitive Data Types, Arrays, Loops, and Conditions
2. Primitive Data Types, Arrays, Loops, and Conditions
Variables
Operators
Primitive data types
Strings
Booleans
Logical operators
Comparison
Primitive data types recap
Arrays
Conditions and loops
Code blocks
Switch
Loops
Comments
Summary
Exercises
3
3. Functions
3. Functions
What is a function?
Scope of variables
Functions are data
Closures
Summary
Exercises
4
4. Objects
4. Objects
From arrays to objects
Built-in objects
Summary
Exercises
5
5. Prototype
5. Prototype
The prototype property
Using the prototype's methods and properties
Augmenting built-in objects
Summary
Exercises
6
6. Inheritance
6. Inheritance
Prototype chaining
Inheriting the prototype only
Uber – access to the parent from a child object
Isolating the inheritance part into a function
Copying properties
Heads-up when copying by reference
Objects inherit from objects
Deep copy
object()
Using a mix of prototypal inheritance and copying properties
Multiple inheritance
Parasitic inheritance
Borrowing a constructor
Summary
Case study – drawing shapes
Exercises
7
7. The Browser Environment
7. The Browser Environment
Including JavaScript in an HTML page
BOM and DOM – an overview
BOM
DOM
Events
XMLHttpRequest
Summary
Exercises
8
8. Coding and Design Patterns
8. Coding and Design Patterns
Coding patterns
Design patterns
Summary
9
A. Reserved Words
A. Reserved Words
Keywords
Future reserved words
Previously reserved words
10
B. Built-in Functions
B. Built-in Functions
11
C. Built-in Objects
C. Built-in Objects
Object
Array
Function
Boolean
Number
String
Date
Math
RegExp
Error objects
JSON
12
D. Regular Expressions
D. Regular Expressions
13
Index
Index

What this book covers

Chapter 1, Object-oriented JavaScript, talks briefly about the history, present, and future of JavaScript, and then moves on to explore the basics of object-oriented programming (OOP) in general. You then learn how to set up your training environment (Firebug) in order to dive into the language on your own, using the book examples as a base.

Chapter 2, Primitive Data Types, Arrays, Loops, and Conditions, discusses the language basics: variables, data types, primitive data types, arrays, loops, and conditionals.

Chapter 3, Functions, covers functions that JavaScript uses, and here you learn to master them all. You also learn about the scope of variables and JavaScript's built-in functions. An interesting, but often misunderstood feature of the language—closures—is demystified at the end of the chapter.

Chapter 4, Objects, talks about objects, how to work with properties and methods, and the various ways to create your objects. This chapter also talks about built-in objects such as Array, Function, Boolean, Number, and String.

Chapter 5, Prototype, is dedicated to the all-important concept of prototypes in JavaScript. It also explains how prototype chain works, hasOwnProperty(), and some gotchas of prototypes.

Chapter 6, Inheritance, discusses how inheritance works. This chapter also talks about a method to create subclasses like other classic languages.

Chapter 7, The Browser Environment, is dedicated to browsers. This chapter also covers BOM (Browser Object Model), DOM (W3C's Document Object Model), browser events, and AJAX.

Chapter 8, Coding and Design Patterns, dives into various unique JavaScript coding patterns, as well as several language-independent design patterns, translated to JavaScript from the Book of Four, the most influential work of software design patterns. The chapter also discusses JSON.

Appendix A, Reserved Words, lists the reserved words in JavaScript.

Appendix B, Built-in Functions, is a reference of built-in JavaScript functions together with sample uses.

Appendix C, Built-in Objects, is a reference that provides details and examples of the use of every method and property of every built-in object in JavaScript.

Appendix D, Regular Expressions, is a regular expressions pattern reference.

Appendix E, Answers to Exercise Questions, has solutions for all the exercises mentioned at the end of the chapters.

You can download this Appendix from http://www.packtpub.com/sites/default/files/downloads/3127OT_Answers_to_Exercise_Questions.pdf.

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