Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

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4 CHAPTER 1 ■ INTRODUCING JQUERY ■ Note The difference between using jQuery's AJAX tools versus the straight JavaScript method will be explored later on in Chapter 2. A good number of JavaScript libraries are available. Several of the most popular currently in use are Prototype (http://www.prototypejs.org), MooTools (http://mootools.net), Yahoo! UI Library (http://developer.yahoo.com/yui), and the focus of this book, jQuery. Understanding the Benefits of jQuery Every JavaScript framework has its own benefits; jQuery is no exception, providing the following benefits: • Small file size (approximately 23KB as of version 1.4) • Extremely simple syntax • Chainable methods • Easy plug-in architecture for extending the framework • A huge online community • Great documentation at http://api.jquery.com • Optional extensions of jQuery for added functionality, such as jQueryUI Understanding the History of jQuery The brain child of developer John Resig jQuery was first announced at BarCamp NYC in early 2006 (for more on BarCamp, see http://barcamp.org). Resig noted on his web site, that he created jQuery because he was unhappy with the currently available libraries and felt that they could be vastly improved by reducing “syntactic fluff” and adding specific controls for common actions (http://ejohn.org/blog/selectors-in-javascript/). jQuery was a big hit in the development community and quickly gained momentum. Other developers came on to help refine the library, ultimately resulting in the first stable release of jQuery, version 1.0, on August 26, 2006. Since then, jQuery has progressed to version 1.4.2 (at the time of this writing) and has seen a huge influx of plug-ins from the development community. A plug-in is an extension of jQuery that isn’t part of the core library. You'll learn more about (and build) jQuery plug-ins in Chapter 10. Setting Up a Testing Environment Because there’s no better way to understand a new language than to just get your hands dirty, you’ll need a testing environment to try out some introductory exercises with jQuery. Fortunately, setting up this testing environment is a simple two-step process: install Firefox, and install Firebug.
CHAPTER 1 ■ INTRODUCING JQUERY Throughout this book, all exercises will assume that you are using the Firefox browser with the Firebug plug-in due to its excellent JavaScript testing console. Installing Firefox To get Firefox up and running on your computer, navigate to http://firefox.com and download the latest version of Firefox (version 3.6 at the time of this writing). After running the installer (Firefox Setup x.x.x.exe on a PC or Firefox x.x.x.dmg on Mac), Firefox will be running. Installing Firebug To install Firebug, use Firefox to navigate to http://getfirebug.com, and click the “Install Firebug x.x for Firefox” button. This takes you to the Firefox add-ons directory entry for Firebug. Once there, click the “Add to Firefox” button, which will bring up the installation dialog in the browser (see Figure 1-1). Click Install Now, and wait for the add-on to install. Then restart Firefox. Figure 1-1. The installation dialog for Firebug 5
Page 1: THE EXPERT’S VOICE ® IN OPEN SOU
Page 4 and 5: ii Pro PHP and jQuery Copyright ©
Page 6 and 7: iv Contents at a Glance ■About th
Page 8 and 9: vi ■ CONTENTS Understanding jQuer
Page 10 and 11: viii ■ CONTENTS Summary .........
Page 12 and 13: x ■ CONTENTS ■Chapter 9: Perfor
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Page 16 and 17: xiv Acknowledgments I feel like I s
Page 19: C H A P T E R 1 ■ ■ ■ Introdu
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Page 27 and 28: Basic Selectors CHAPTER 1 ■ INTRO
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C H A P T E R 3 ■ ■ ■ Object-
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$obj = new MyClass; var_dump($obj);
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CHAPTER 3 ■ OBJECT-ORIENTED PROGR
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$obj = new MyClass; // Get the valu
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} public function setProperty($newv
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} } return $this->getProperty(); pu
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Create a new object $newobj = new M
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} } // Create a new object $newobj
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Private Properties and Methods CHAP
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*/ CHAPTER 3 ■ OBJECT-ORIENTED PR
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Ease of Implementation CHAPTER 3
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C H A P T E R 4 ■ ■ ■ Build a
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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# # DocumentRoot: The directory out
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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} ?> } } } CHAPTER 4 ■ BUILD AN E
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■ Note For the sake of brevity, D
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} ?> CHAPTER 4 ■ BUILD AN EVENTS
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} ?> } include_once $filename; CHAP
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private $_startDay; public function
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P A R T 3 ■ ■ ■ Combining jQu
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236 CHAPTER 7 ■ ENHANCING THE USE
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264 CHAPTER 8 ■ EDITING THE CALEN
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P A R T 4 ■ ■ ■ Advancing jQu
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312 CHAPTER 9 ■ PERFORMING FORM V
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C H A P T E R 10 ■ ■ ■ Extend
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$.validDate = function(date, option
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Modifying the Initialization Script
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Adding Methods to jQuery CHAPTER 10
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over, then returns it to its origin
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CHAPTER 10■ EXTENDING JQUERY ■
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Defines default values for the plug
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}); // Loads the event data from th
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■ ■ ■ Index ■ Special Chara
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■ C Calendar app JavaScript initi
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saving new calendar events in addin
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:eq( ) method, 17, 20, 26-27 equals
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eginning of string, 324 character c
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asic selectors in by class name, 12
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.die( ) method, 75-76 .error( ) met
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.parents( ) method, 33 .parentsUnti
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overview, 328 regex pattern to vali
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