JavaScript: A Beginner's Guide, Fourth Edition

Name: JavaScript: A Beginner's Guide, Fourth Edition | A Beginner's Guide
Brand: McGraw-Hill Education
Price: 92.59 EUR
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A Beginner's Guide

John Pollock(Author)

McGraw-Hill Education (Publisher)

1st Edition

Published on 9. April 2013

519 pages

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978-0-07-180938-2 (ISBN)

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Content

Cover
Title Page
Copyright Page
About the Author
Contents at a Glance
Contents
Acknowledgments
Introduction
1 Introduction to JavaScript
What You Need to Know
Basic HTML and CSS Knowledge
Basic Text Editor and Web Browser Knowledge
Which Version?
Remember, It's Not Java
Similarities to Other Languages
Beginning with JavaScript
Prototype-Based
Client-Side
Scripting Language
Putting It All Together
Online Resources
Try This 1-1: Use JavaScript to Write Text
Chapter 1 Self Test
2 Placing JavaScript in an HTML File
Using the HTML Script Tags
Identifying the Scripting Language
Calling External Scripts
Specifying When the Script Should Load
Using &noscript&&/noscript& Tags
Creating Your First Script
Writing a "Hello World" Script
Creating an HTML Document for the Script
Inserting the Script into the HTML Document
Try This 2-1: Insert a Script into an HTML Document
Using External JavaScript Files
Creating a JavaScript File
Creating the HTML Files
Viewing the Pages in Your Browser
Try This 2-2: Call an External Script from an HTML Document
Using JavaScript Comments
Inserting Comments on One Line
Adding Multiple-Line Comments
Chapter 2 Self Test
3 Using Variables
Understanding Variables
Why Variables Are Useful
Variables as Placeholders for Unknown Values
Variables as Time-Savers
Variables as Code Clarifiers
Defining Variables for Your Scripts
Declaring Variables
Assigning Values to Variables
Naming Variables
Understanding Data Types
Number
String
Boolean
Null
Undefined
Try This 3-1: Declare Variables
Using Variables in Scripts
Making a Call to a Variable
Adding Variables to Text Strings
Writing a Page of JavaScript
Creating the Framework
Defining the Variables
Adding the Commands
Modifying the Page
Try This 3-2: Create an HTML Page with JavaScript
Chapter 3 Self Test
4 Using Functions
What a Function Is
Why Functions Are Useful
Structuring Functions
Declaring Functions
Defining the Code for Functions
Naming Functions
Adding Arguments to Functions
Adding Return Statements to Functions
Calling Functions in Your Scripts
Script Tags: Head Section or Body Section
Calling a Function from Another Function
Calling Functions with Arguments
Calling Functions with Return Statements
Other Ways to Define Functions
Try This 4-1: Create an HTML Page with Functions
Scope/Context Basics
Global Context
Function Context
Try This 4-2: Write Your Own Functions
Chapter 4 Self Test
5 JavaScript Operators
Understanding the Operator Types
Understanding Arithmetic Operators
The Addition Operator (+)
The Subtraction Operator (-)
The Multiplication Operator (*)
The Division Operator (/)
The Modulus Operator (%)
The Increment Operator (++)
The Decrement Operator (- -)
The Unary Plus Operator (+)
The Unary Negation Operator (-)
Understanding Assignment Operators
The Assignment Operator (=)
The Add-and-Assign Operator (+=)
The Subtract-and-Assign Operator (-=)
The Multiply-and-Assign Operator (*=)
The Divide-and-Assign Operator (/=)
The Modulus-and-Assign Operator (%=)
Try This 5-1: Adjust a Variable Value
Understanding Comparison Operators
The Is-Equal-To Operator (==)
The Is-Not-Equal-To Operator (!=)
The Strict Is-Equal-To Operator (===)
The Strict Is-Not-Equal-To Operator (!==)
The Is-Greater-Than Operator (&)
The Is-Less-Than Operator (&)
The Is-Greater-Than-or-Equal-To Operator (&=)
The Is-Less-Than-or-Equal-To Operator (&=)
Understanding Logical Operators
The AND Operator (&&)
The OR Operator (||)
The NOT Operator (!)
The Bitwise Operators
Special Operators
Understanding Order of Operations
Try This 5-2: True or False?
Chapter 5 Self Test
6 Conditional Statements and Loops
Defining Conditional Statements
What Is a Conditional Statement?
Why Conditional Statements Are Useful
Using Conditional Statements
Using if/else Statements
Using the switch Statement
Using the Conditional Operator
User Input from a Prompt
Try This 6-1: Work with User Input
Defining Loops
What Is a Loop?
Why Loops Are Useful
Using Loops
for
while
do while
for in and for each in
Using break and continue
Try This 6-2: Work with for Loops and while Loops
Chapter 6 Self Test
7 JavaScript Arrays
What Is an Array?
Why Arrays Are Useful
Defining and Accessing Arrays
Naming an Array
Defining an Array
Accessing an Array's Elements
Using the length Property and Loops
Changing Array Values and Changing the Length
Try This 7-1: Use Loops with Arrays
Array Properties and Methods
Properties
Methods
Nesting Arrays
Defining Nested Arrays
Loops and Nested Arrays
Try This 7-2: Nested Arrays Practice
Chapter 7 Self Test
8 Objects
Defining Objects
Creating Objects
Naming
Single Objects
Try This 8-1: Create a Computer Object
Object Structures
Constructor Functions
Using Prototypes
Helpful Statements for Objects
The for-in Loop
The with Statement
Try This 8-2: Practice with the Combination Constructor/Prototype Pattern
Understanding Predefined JavaScript Objects
The Navigator Object
The History Object
Chapter 8 Self Test
9 The Document Object
Defining the Document Object
Using the Document Object Model
Using the Properties of the Document Object
Collections
The cookie Property
The dir Property
The lastModified Property
The referrer Property
The title Property
The URL Property
The URLUnencoded Property
Using the Methods of the Document Object
The get Methods for Elements
The open() and close() Methods
The write() and writeln() Methods
Using DOM Nodes
DOM Node Properties
DOM Node Methods
Try This 9-1: Add a DOM Node to the Document
Creating Dynamic Scripts
Styles in JavaScript
Simple Event Handling
Coding a Dynamic Script
Try This 9-2: Try Out Property Changes
Chapter 9 Self Test
10 Event Handlers
What Is an Event Handler?
Why Event Handlers Are Useful
Understanding Event Handler Locations and Uses
Using an Event Handler in an HTML Element
Using an Event Handler in the Script Code
Learning the Events
The Click Event
Focus and Blur Events
The Load and Unload Events
The Reset and Submit Events
The Mouse Events
The Keyboard Events
Try This 10-1: Focus and Blur
Other Ways to Register Events
The addEventListener() Method
The attachEvent() Method
The Event Object
DOM and Internet Explorer: DOM Level 0 Registration
Using event with Modern Event Registration
Properties and Methods
Event Information
Try This 10-2: Using addEventListener()
Creating Scripts Using Event Handlers
Show Hidden Content
Change Content
Chapter 10 Self Test
11 Window Object
Window: The Global Object
Using the Properties of the Window Object
The closed Property
The frames Property
The innerWidth and innerHeight Properties
The length Property
The location Property
The name Property
The opener Property
The parent, self, and top Properties
The status and defaultStatus Properties
Try This 11-1: Use the location and innerWidth Properties
Using the Methods of the Window Object
The alert(), prompt(), and confirm() Methods
The find() Method
The home() Method
The print() Method
The setInterval() and clearInterval() Methods
The setTimeout() and clearTimeout() Methods
Try This 11-2: Use the setTimeout() and confirm() Methods
The Main Window and New Windows
The Tale of Pop-up Windows
Opening New Windows
Closing New Windows
Moving, Resizing, and Scrolling New Windows
The resizeBy() and resizeTo() Methods
The scrollBy() and ScrollTo() Methods
Chapter 11 Self Test
12 Math, Number, and Date Objects
Using the Math Object
What Is the Math Object?
How the Math Object Is Useful
Properties
Methods
Try This 12-1: Display a Random Link on a Page
Understanding the Number Object
Properties
Methods
Using the Date Object
Properties and Methods
Methods That Get Values
Methods That Set Values
Other Methods
How About Some Date Scripts?
Try This 12-2: Create a JavaScript Clock
Chapter 12 Self Test
13 Handling Strings
Introduction to the String Object
The String Object
The String Literal
What's the Difference?
Using the Properties and Methods of the String Object
The length Property
Methods of the String Object
Try This 13-1: Use indexOf() to Test an Address
Using Cookies
Setting a Cookie
Reading a Cookie
Try This 13-2: Remember a Name
Using Regular Expressions
Creating Regular Expressions
Testing Strings Against Regular Expressions
Adding Flags
Creating Powerful Patterns
Grouping Expressions
The replace(), match(), and search() Methods
More Information
Chapter 13 Self Test
14 JavaScript and Forms
Accessing Forms
Using the forms Array
Using Form Names
Using an ID
Using the Properties and Methods of the Form Object
Properties
Methods
Ensuring the Accessibility of Forms
Using Proper Element and Label Order
Using &label&&/label& Tags
Using &fieldset&&/fieldset& Tags
Not Assuming Client-Side Scripting
Validation
Simple Validation
Techniques
Check Boxes and Radio Buttons
Try This 14-1: Request a Number
HTML5 and Forms
New Elements
New Input Types
New Attributes
HTML5 Form Validation
Try This 14-2: Validate a Phone Number with HTML5 or JavaScript
Chapter 14 Self Test
15 An Introduction to Advanced Techniques
Working with Images
Rollovers
Try This 15-1: A More Accessible Rollover
JavaScript and Frames
Purpose of Frames
Accessing Frames
Breaking Out of Frames
Debugging Scripts
Types of Errors
Alerts and Using the Console
Using a Lint Tool
Browser Developer Tools
JavaScript and Accessibility
Separate Content from Presentation
Enhancing Content
Try This 15-2: Make This Code Accessible
JavaScript Security
Security and Signed Scripts
Page Protection
AJAX and JSON
AJAX
JSON
Chapter 15 Self Test
16 JavaScript Libraries, HTML5, and Harmony
Using jQuery
Obtaining jQuery
Getting Started: document.ready()
Using Selectors
Altering Classes
Methods for Effects
Further Reading
Try This 16-1: Using jQuery to Create Effects
Other JavaScript Libraries
jQuery Mobile
php.js
node.js
MooTools
Three.js
JavaScript and HTML5
The &canvas& Element
Drag and Drop
Try This 16-2: Drag and Drop
ECMAScript Harmony
The const and let Keywords
Default Argument Values
Classes
More on Harmony
Further Reading
Need Help?
Chapter 16 Self Test
A Answers to Self Tests
Chapter 1: Introduction to JavaScript
Chapter 2: Placing JavaScript in an HTML File
Chapter 3: Using Variables
Chapter 4: Using Functions
Chapter 5: JavaScript Operators
Chapter 6: Conditional Statements and Loops
Chapter 7: JavaScript Arrays
Chapter 8: Objects
Chapter 9: The Document Object
Chapter 10: Event Handlers
Chapter 11: Window Object
Chapter 12: Math, Number, and Date Objects
Chapter 13: Handling Strings
Chapter 14: JavaScript and Forms
Chapter 15: An Introduction to Advanced Techniques
Chapter 16: JavaScript Libraries, HTML5, and Harmony
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