Learning JavaScript: A Hands-On Guide to the Fundamentals of Modern JavaScript, Rough Cuts

Description

This is the Rough Cut version of the printed book.

Get Started Fast with  Modern JavaScript Web Development!

With the arrival of HTML5, jQuery, and Ajax, JavaScript web development skills are more valuable  than ever! This complete, hands-on JavaScript tutorial covers everything you need to know now.  Using line-by-line code walkthroughs and end-of-chapter exercises, top web developer and speaker Tim Wright will help you get results fast, even if you’ve never written a line of JavaScript before.

Smart, friendly, enthusiastic, and packed with modern examples, Learning JavaScript covers both design-level and development-level JavaScript. You’ll find expert knowledge and best practices for everything from jQuery and interface design to code organization and front-end templating. Wright’s focused coverage includes regular break points and clear reviews that make modern JavaScript easier to learn—and easier to use!

Learning JavaScript is your fastest route  to success with JavaScript—whether you’re entirely new to the language or you need to  sharpen and upgrade skills you first learned  a decade ago!

Coverage includes

• Mastering all of the JavaScript concepts and terminology you need to write new programs  or efficiently modify existing code

• Creating robust, secure code for both the design and development levels

• Maximizing usability, reusability, accessibility, clarity, security, and performance

• Taking full advantage of the browser environments your code will run in

• Accessing the DOM to create behaviors and data interactions

• Storing data for easy and efficient access

• Using variables, functions, loops, and other core language features

• Interacting with users through events

• Communicating with servers through Ajax

• Improving your productivity with JavaScript libraries

Sample Content

Table of Contents

I>Chapter 1: Progressive Enhancement 3
Defining Progressive Enhancement 3

History 4

Purpose 5

Accessibility 5

Reusability 5

Progressive Enhancement Versus Graceful

Degradation 6

Structure Layer 6

Adding More Meaning with HTML5 8

Presentation Layer 9

Inline CSS 10

Linking Up Your Stylesheet 10

Behavior Layer 12

Inline JavaScript 12

Embedded JavaScript 13

External and Unobtrusive JavaScript 15

Benefits of Progressive Enhancement 16

Performance 17

Building for the Future 17

The Touch Interface 18

Final Words on Progressive Enhancement 19

Summary 20

Exercises 20

Chapter 2: JavaScript in the Browser 21

A People’s History of JavaScript 21

Origins 22

Progressive Enhancement 23

The Behavior Layer 24

Moving Past Today 24

Browser Interactions with JavaScript 25

HTTP Requests 26

JavaScript and Rendering Engines 29

What JavaScript Can Do 30

Modifying HTML 31

Communicating with the Server 31

Storing Data 31

How You Should Use JavaScript 32

Improving User Experience 32

Using JavaScript Responsibly 32

Creating Fallbacks 34

Tools to Help You Use JavaScript 36

Tools Built into the Language 36

Tools Built into the Browser 37

Summary 38

Exercises 38

Chapter 3: JavaScript Terminology 39

Basics 39

Document Object Model (DOM) 39

Parents 40

Children 40

Siblings 41

Variables 41

Strings 43

Comments 43

Operators 44

Use Strict 45

Storage 45

Cache 45

Arrays 45

Cookies 46

JavaScript Object Notation (JSON) 46

Objects 47

Creating Interaction 47

Loops 48

Conditionals 48

switch Statement 49

Functions 50

Anonymous Functions 51

Callback Functions 52

Methods 53

Events 54

Ajax 54

Summary 55

Exercises 55

Chapter 4: Accessing the DOM 57

What Is the DOM? 57

The DOM Tree 58

Element Nodes 59

Text Nodes 60

Attribute Nodes 62

Working with the Element Node 62

Targeting by ID 63

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