Jeremy McPeak

Beginning JavaScript Jeremy McPeak 5. utgave

Marc Notes: The bestselling JavaScript guide, updated with current features and best practices. It shows how to work effectively with JavaScript frameworks, functions, and modern browsers, and teaches more effective coding practices using HTML5. Table of Contents: INTRODUCTION xix CHAPTER 1: INTRODUCTION TO JAVASCRIPT AND THE WEB 1 Introduction to JavaScript 1 Where Do My Scripts Go? 7 Your First Simple JavaScript Program 9 Writing More JavaScript 10 A Brief Look at Browsers and Compatibility Problems 15 Summary 16 CHAPTER 2: DATA TYPES AND VARIABLES 17 Types of Data in JavaScript 18 Variables--Storing Data in Memory 20 Using Data--Calculations and Basic String Manipulation 26 Data Type Conversion 38 Arrays 43 Summary 52 CHAPTER 3: DECISIONS AND LOOPS 55 Decision Making--The if and switch Statements 56 Looping--The for and while Statements 76 Summary 84 CHAPTER 4: FUNCTIONS AND SCOPE 87 Creating Your Own Functions 88 Scope and Lifetime 92 Functions as Values 94 Summary 97 CHAPTER 5: JAVASCRIPT--AN OBJECT?]BASED LANGUAGE 99 Object?]Based Programming 100 JavaScript's Native Object Types 105 Creating Your Own Custom Objects 144 Creating New Types of Objects (Reference Types) 148 Summary 151 CHAPTER 6: STRING MANIPULATION 153 Additional String Methods 154 Regular Expressions 158 The String Object 175 Using the RegExp Object's Constructor 183 Summary 191 CHAPTER 7: DATE, TIME, AND TIMERS 193 World Time 194 Timers in a Web Page 200 Summary 203 CHAPTER 8: PROGRAMMING THE BROWSER 205 Introduction to the Browser's Objects 206 Determining the User's Browser 218 Summary 225 CHAPTER 9: DOM SCRIPTING 229 The Web Standards 231 The Document Object Model 234 Manipulating the DOM 259Summary 268 CHAPTER 10: EVENTS 271 Types of Events 272 Connecting Code to Events 273 The Standard Event Model 283 Event Handling in Old Versions of Internet Explorer 298 Writing Cross?]Browser Code 307 Native Drag and Drop 317 Summary 333 CHAPTER 11: HTML FORMS: INTERACTING WITH THE USER 335 HTML Forms 336 Traditional Form Object Properties and Methods 338 HTML5 Form Object Properties and Methods 375 Summary 386 CHAPTER 12: JSON 391 XML 392 JSON 393 Summary 400 CHAPTER 13: DATA STORAGE 403 Baking Your First Cookie 404 Creating a Cookie 416 Getting a Cookie's Value 419 Cookie Limitations 424 Cookie Security and IE 425 Web Storage 426 Summary 432 CHAPTER 14: AJAX 435 What Is Ajax? 436 Using the XMLHttpRequest Object 438 Creating a Simple Ajax Module 441 Validating Form Fields with Ajax 444 Things to Watch Out For 453 Summary 462 CHAPTER 15: HTML5 MEDIA 463 A Primer 464 Scripting Media 467 Summary 481 CHAPTER 16: JQUERY 483 Getting jQuery 484 jQuery's API 485 Summary 504 CHAPTER 17: OTHER JAVASCRIPT LIBRARIES 505 Digging into Modernizr 506 Diving into Prototype 515 Delving into MooTools 531 Summary 546 CHAPTER 18: COMMON MISTAKES, DEBUGGING, AND ERROR HANDLING 549 D'oh! I Can't Believe I Just Did That: Some Common Mistakes 550 Error Handling 555 Debugging 563 Summary 583 APPENDIX A: ANSWERS TO EXERCISES 587 APPENDIX B: JAVASCRIPT CORE REFERENCE 653 APPENDIX C: W3C DOM REFERENCE 683 APPENDIX D: LATIN?]1 CHARACTER SET 715 INDEX 723Biographical Note: About the authors Jeremy McPeak is a professional programmer and analyst who works extensively with JavaScript and C#. He coauthored both of the previous editions of "Beginning JavaScript," and authored the well-reviewed "JavaScript 24-Hour Trainer." He contributes to the online, web-centric learning site Tuts+ Code, covering topics such as JavaScript, C#, and the . NET Framework. Paul Wilton owns his own company, providing online booking systems to vacation property owners, which is largely developed using JavaScript. Visit us at wrox.com where you have access to free code samples, Programmer to Programmer forums, and discussions on the latest happenings in the industry. Jacket Description/Back: Learn the latest features and create powerful web apps with JavaScript JavaScript has shaped the Web from a passive medium into one that is rich, dynamic, and interactive. With this comprehensive beginner's guide, you'll learn JavaScript the way it's most commonly used today--with the latest tools and most up-to-date techniques available so you can start creating dynamic web apps. You'll discover how to work effectively with JavaScript frameworks, functions, and modern browsers, and how to employ the most effective coding practices using HTML5. "Beginning JavaScript, 5th Edition: " Presents JavaScript using the most up-to-date coding style Makes it easy to understand JSON, functions, events, and feature detection Teaches the fundamentals of finding, creating, and manipulating elements in the page Utilizes new HTML5 elements and the related API Uncovers tips for new features, including geolocation, local storage, and more Demonstrates how to use JavaScript to make HTTP requests to the web server (Ajax) Covers common mistakes, debugging, and error handling Features helpful exercises with solutions that provide plenty of opportunity to practice, while the companion website offers downloadable code for all examples given in the book Wrox Beginning guides are crafted to make learning programming languages and technologies easier than you think, providing a structured, tutorial format that will guide you through all the techniques involved. Publisher Marketing: The bestselling JavaScript guide, updated with current features and best practices "Beginning JavaScript" "5th Edition" shows you how to work effectively with JavaScript frameworks, functions, and modern browsers, and teaches more effective coding practices using HTML5. This new edition has been extensively updated to reflect the way JavaScript is most commonly used today, introducing you to the latest tools and techniques available to JavaScript developers. Coverage includes modern coding practices using HTML5 markup, the JSON data format, DOM APIs, the jQuery framework, and more. Exercises with solutions provide plenty of opportunity to practice, and the companion website offers downloadable code for all examples given in the book. Learn JavaScript using the most up to date coding style Understand JSON, functions, events, and feature detection Utilize the new HTML5 elements and the related API Explore new features including geolocation, local storage, and more JavaScript has shaped the Web from a passive medium into one that is rich, dynamic, and interactive. No matter the technology on the server side, it's JavaScript that makes it come alive in the browser. To learn JavaScript the way it's used today, "Beginning JavaScript, 5th Edition" is your concise guide.