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• Beginning JavaScript®
• CREDITS
• ABOUT THE AUTHORS
• ACKNOWLEDGMENTS
• CONTENTS
• INTRODUCTION
• CHAPTER 1: INTRODUCTION TO JAVASCRIPT AND THE WEB
• Introduction to JavaScript
• What Is JavaScript?
• JavaScript and the Web
• What Can JavaScript Do for Me?
• Tools Needed to Create JavaScript Web Applications
• Development Tools
• Web Browsers
• Where Do My Scripts Go?
• Linking to an External JavaScript File
• Advantages of Using an External File
• Your First Simple JavaScript Program
• Writing More JavaScript
• A Brief Look at Browsers and Compatibility Problems
• Summary
• CHAPTER 2: DATA TYPES AND VARIABLES
• Types of Data in JavaScript
• Numerical Data
• Text Data
• Boolean Data
• Variables—Storing Data in Memory
• Creating Variables and Giving Them Values
• Assigning Variables with the Value of Other Variables
• Using Data—Calculations and Basic String Manipulation
• Numerical Calculations
• Increment and Decrement Operators
• Operator Precedence
• Basic String Operations
• Mixing Numbers and Strings
• Data Type Conversion
• Dealing with Strings That Won’t Convert
• Arrays
• A Multi-Dimensional Array
• Summary
• CHAPTER 3: DECISIONS AND LOOPS
• Decision Making—The if and switch Statements
• Comparison Operators
• Precedence
• Assignment versus Comparison
• Assigning the Results of Comparisons
• The if Statement
• Logical Operators
• AND
• OR
• NOT
• Multiple Conditions Inside an if Statement
• else and else if
• Comparing Strings
• The switch Statement
• Executing the Same Code for Different Cases
• Looping—The for and while Statements
• The for Loop
• The for…in Loop
• The while Loop
• The do…while loop
• The break and continue Statements
• Summary
• CHAPTER 4: FUNCTIONS AND SCOPE
• Creating Your Own Functions
• Scope and Lifetime
• Global Scope
• Functional Scope
• Identifier Lookup
• Functions as Values
• Summary
• CHAPTER 5: JAVASCRIPT—AN OBJECT-BASED LANGUAGE
• Object-Based Programming
• What Are Objects?
• Objects in JavaScript
• Using JavaScript Objects
• Creating an Object
• Using an Object’s Properties
• Calling an Object’s Methods
• Primitives and Objects
• JavaScript’s Native Object Types
• String Objects
• The length Property
• Finding a String Inside Another String—The indexOf() and lastIndexOf() Methods
• Copying Part of a String—The substr() and substring() Methods
• Converting Case—The toLowerCase() and toUpperCase() Methods
• Selecting a Single Character from a String—The charAt() and charCodeAt() Methods
• Converting Character Codes to a String—The fromCharCode() Method
• Removing Leading and Trailing Whitespace—The trim() Method
• Array Objects
• Finding Out How Many Elements Are in an Array—The length Property
• Adding Elements—The push() Method
• Joining Arrays—The concat() Method
• Copying Part of an Array—The slice() Method
• Converting an Array into a Single String—The join() Method
• Putting Your Array in Order—The sort() Method
• Putting Your Array into Reverse Order—The reverse() Method
• Finding Array Elements—The indexOf() and lastIndexOf() Methods
• Iterating through an Array without Loops
• The Math Object
• The abs() Method
• Finding the Largest and Smallest Numbers—The min() and max() Methods
• Rounding Numbers
• The random() Method
• The pow() Method
• Number Objects
• The toFixed() Method
• Date Objects
• Creating a Date Object
• Getting Date Values
• Setting Date Values
• Calculations and Dates
• Getting Time Values
• Setting Time Values
• Creating Your Own Custom Objects
• Creating New Types of Objects (Reference Types)
• Defining a Reference Type
• Creating and Using Reference Type Instances
• Summary
• CHAPTER 6: STRING MANIPULATION
• Additional String Methods
• The split() Method
• The replace() Method
• The search() Method
• The match() Method
• Regular Expressions
• Simple Regular Expressions
• Regular Expressions: Special Characters
• Text, Numbers, and Punctuation
• Repetition Characters
• Position Characters
• Covering All Eventualities
• Grouping Regular Expressions
• Reusing Groups of Characters
• The String Object
• The split() Method
• The replace() Method
• The search() Method
• The match() Method
• Using the RegExp Object’s Constructor
• Telephone Number Validation
• Validating a Postal Code
• Validating an E-mail Address
• Validating a Domain Name
• Validating a Person’s Address
• Validating the Complete Address
• Summary
• CHAPTER 7: DATE, TIME, AND TIMERS
• World Time
• Setting and Getting a Date Object’s UTC Date and Time
• Timers in a Web Page
• One-Shot Timer
• Setting a Timer that Fires at Regular Intervals
• Summary
• CHAPTER 8: PROGRAMMING THE BROWSER
• Introduction to the Browser’s Objects
• The window Object
• The history Object
• The location Object
• The navigator Object
• The geolocation Object
• The screen Object
• The document Object
• Using the document Object
• The images Collection
• The links Collection
• Determining the User’s Browser
• Feature Detection
• Browser Sniffing
• Summary
• CHAPTER 9: DOM SCRIPTING
• The Web Standards
• HTML
• ECMAScript
• The Document Object Model
• The DOM Standard
• Level 0
• Level 1
• Level 2
• Level 3
• Level 4
• Browser Compliance with the Standards
• Differences between the DOM and the BOM
• Representing the HTML Document as a Tree Structure
• What Is a Tree Structure?
• An Example HTML Page
• The Core DOM Objects
• Base DOM Objects
• High-Level DOM Objects
• DOM Objects and Their Properties and Methods
• The Document Object and its Methods
• The Element Object
• The Node Object
• Manipulating the DOM
• Accessing Elements
• Changing Appearances
• Using the style Property
• Changing the class Attribute
• Positioning and Moving Content
• Example: Animated Advertisement
• Are We There Yet?
• Performing the Animation
• Summary
• CHAPTER 10: EVENTS
• Types of Events
• Connecting Code to Events
• Handling Events via HTML Attributes
• Handling Events via Object Properties
• The Standard Event Model
• Connecting Code to Events—The Standard Way
• Using Event Data
• Event Handling in Old Versions of Internet Explorer
• Accessing the event Object
• Using Event Data
• Writing Cross-Browser Code
• Native Drag and Drop
• Making Content Draggable
• Creating a Drop Target
• Transferring Data
• Summary
• CHAPTER 11: HTML FORMS: INTERACTING WITH THE USER
• HTML Forms
• Traditional Form Object Properties and Methods
• HTML Elements in Forms
• Common Properties and Methods
• The name Property
• The value Property
• The form Property
• The type Property
• The focus() and blur() Methods
• Button Elements
• Text Elements
• The Text Box
• Problems with Firefox and the blur Event
• The Password Text Box
• The Hidden Text Box
• The textarea Element
• Check Boxes and Radio Buttons
• Selection Boxes
• Adding and Removing Options
• Adding New Options with Standard Methods
• Select Element Events
• HTML5 Form Object Properties and Methods
• New Input Types
• New Elements
• The
  Element
• The and Elements
• Summary
• CHAPTER 12: JSON
• XML
• JSON
• Simple Values
• Objects
• Arrays
• Serializing Into JSON
• Parsing JSON
• Summary
• CHAPTER 13: DATA STORAGE
• Baking Your First Cookie
• A Fresh-Baked Cookie
• Viewing Cookies in Internet Explorer
• Viewing Cookies in Firefox
• Viewing Cookies in Chrome
• The Cookie String
• name and value
• expires
• path
• domain
• secure
• Creating a Cookie
• Getting a Cookie’s Value
• Cookie Limitations
• A User May Disable Cookies
• Number and Information Limitation
• Cookie Security and IE
• Web Storage
• Setting Data
• Getting Data
• Removing Data
• Storing Data as Strings
• Viewing Web Storage Content
• Summary
• CHAPTER 14: AJAX
• What Is Ajax?
• What Can It Do?
• Google Maps
• Google Suggest
• Browser Support
• Using the XMLHttpRequest Object
• Creating an XMLHttpRequest Object
• Using the XMLHttpRequest Object
• Asynchronous Requests
• Creating a Simple Ajax Module
• Planning the HttpRequest Module
• The HttpRequest Constructor
• Creating the send() Method
• The Full Code
• Validating Form Fields with Ajax
• Requesting Information
• The Received Data
• Before You Begin
• A Web Server
• PHP
• Things to Watch Out For
• Security Issues
• The Same-Origin Policy
• CORS
• Usability Concerns
• The Browser’s Back Button
• Creating a Back/Forward-Capable Form with an IFrame
• The Server Response
• Dealing with Delays
• Degrade Gracefully When Ajax Fails
• Summary
• CHAPTER 15: HTML5 MEDIA
• A Primer
• Scripting Media
• Methods
• Properties
• Events
• Summary
• CHAPTER 16: JQUERY
• Getting jQuery
• jQuery’s API
• Selecting Elements
• Changing Style
• Adding and Removing CSS Classes
• Toggling Classes
• Checking if a Class Exists
• Creating, Appending, and Removing Elements
• Creating Elements
• Appending Elements
• Removing Elements
• Handling Events
• The jQuery Event Object
• Rewriting the Tab Strip with jQuery
• Using jQuery for Ajax
• Understanding the jQuery Function
• Automatically Parsing JSON Data
• The jqXHR Object
• Summary
• CHAPTER 17: OTHER JAVASCRIPT LIBRARIES
• Digging into Modernizr
• Getting Modernizr
• Modernizr’s API
• Custom Tests
• Loading Resources
• Diving into Prototype
• Getting Prototype
• Testing Your Prototype Installation
• Retrieving Elements
• Selecting Elements with CSS Selectors
• Performing an Operation on Elements Selected with $$()
• Manipulating Style
• Creating, Inserting, and Removing Elements
• Creating an Element
• Adding Content
• Removing an Element
• Using Events
• Rewriting the Tab Strip with Prototype
• Using Ajax Support
• Delving into MooTools
• Getting MooTools
• Testing Your MooTools Installation
• Finding Elements
• Selecting Elements with CSS Selectors
• Performing Operations on Elements
• Changing Style
• Creating, Inserting, and Removing Elements
• Using Events
• Rewriting the Tab Strip with MooTools
• Ajax Support in MooTools
• Summary
• CHAPTER 18: COMMON MISTAKES, DEBUGGING, AND ERROR HANDLING
• D’oh! I Can’t Believe I Just Did That: Some Common Mistakes
• Undefined Variables
• Case Sensitivity
• Incorrect Number of Closing Braces
• Incorrect Number of Closing Parentheses
• Using Equals (=) Rather than Equality (==)
• Using a Method as a Property and Vice Versa
• Missing Plus Signs during Concatenation
• Error Handling
• Preventing Errors
• The try…catch Statements
• Throwing Errors
• Nested try…catch Statements
• finally Clauses
• Debugging
• Debugging in Chrome (and Opera)
• Setting Breakpoints
• Scope Variables and Watches
• Stepping through Code
• The Console
• Call Stack Window
• Debugging in Internet Explorer
• Setting Breakpoints
• Adding Watches
• Stepping through Code
• The Console
• Debugging in Firefox with Firebug
• Setting Breakpoints
• Watches
• Stepping through Code
• The Console
• Debugging in Safari
• Setting Breakpoints
• Adding Watches
• Stepping through Code
• The Console
• Summary
• APPENDIX A: ANSWERS TO EXERCISES
• APPENDIX B: JAVASCRIPT CORE REFERENCE
• APPENDIX C: W3C DOM REFERENCE
• APPENDIX D: LATIN-1 CHARACTER SET
• INDEX
• ADVERT
• EULA