Advanced Ajax. Architecture and Best Practices - download pdf or read online

By Shawn M. Lauriat

ISBN-10: 0131350641

ISBN-13: 9780131350649

“I a great deal loved how this e-book covers the entire Ajax software lifecycle and never merely coding concepts. someone who's trying to develop into a qualified front-end developer will savour the architectural perception and top practices added via this book.”  — Andi Gutmans, Co-Founder & Co-Chief expertise Officer of Zend Technologies

 

Mission-Critical Ajax: Maximizing Scalability, functionality, protection, Reliability, and Maintainability

 

Advanced Ajax: structure and top Practices is the definitive consultant to development business-critical, production-quality internet functions with Ajax. Shawn M. Lauriat systematically addresses the layout, structure, and improvement matters linked to Ajax, supplying confirmed styles and strong code examples on hand in no different ebook. You’ll locate top practices for addressing the complete spectrum of matters company Ajax builders face: scalability, functionality, defense, reliability, flexibility, maintainability, and reusability.

 

Writing for knowledgeable internet builders, Lauriat gives you clean principles and stylish options: meaty technical content material, provided with unparalleled readability. one of many themes he covers in unheard of intensity: cleanly enforcing JavaScript customized occasions to lessen coupling and to augment flexibility; overcoming Ajax’s conventional accessibility obstacles; lowering community latency via compression and different recommendations; and masses extra. insurance includes 

  • Planning Ajax interfaces for simplicity, readability, and intuitiveness
  • Creating scalable, maintainable architectures for client-side JavaScript
  • Using the newest instruments to profile, validate, and debug client-side code
  • Architecting the server part for safeguard and performance, whereas limiting loaded info, items, and activities to present requests
  • Protecting opposed to the main frequent and critical Ajax safeguard hazards
  • Optimizing each component to an Ajax program, from server-side scripts to database interactions
  • Introducing state of the art Ajax: video game improvement, Ajax with canvas, and Ajax for firm applications

About the net Site

This book’s significant other site (http://advancedajax.frozen-o.com) doesn’t simply supply all of the code: It indicates code examples in action, as development blocks of a true net software interface.

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Extra resources for Advanced Ajax. Architecture and Best Practices

Example text

This rarely poses a threat to the memory usage of the application as a whole, and if it does, the application probably does not halt where it should, or it gives error messages that are too verbose: Keep in mind that, because it will get used globally, the message queue may hand off the list to the output for a full page load, or it might hand off the list to the output to an Ajax call, which then would get displayed using the client-side object. /** * A drastically simplified Message object in order * to keep the example readable */ class Message { public $content; public $type; public function __construct($content = '', $type = 'message') { $this->content = $content; $this->type = $type; } } class Messenger { // The $message_queue holds all types of messages in order to // return all of them at once if and when requested protected $message_queue; /** * Return the entire queue */ public function getQueue() { return $this->message_queue; } /** * Add a message to the specified queue */ public function add($message, $type) { $this->message_queue[] = new Message($message, $type); } Indicators and Other Forms of User Feedback 29 /** * Creates the initial queue array */ public function __construct() { $this->message_queue = array(); } } As an end result, any object in the application can add messages to the queue as necessary, for presentation to the user later on in processing.

Technically, yes, you can make

Page Title

look exactly like

Page Title

and vice-versa, but why not do less work with the semantic markup? When you use semantic markup, you also reinforce the division of structure and style. Using the appropriate tags instead of divs or spans with class names describing the usage makes it easier to keep from creating and using tags describing the presentation. The following example: Emphasize me …can easily lead to: Emphasize me …rather than: Emphasize me With semantic markup, you get a much better Return On Investment (ROI), because you can reach development goals faster, support a wider-reaching user base, 34 Chapter 1 Usability and reduce the cost of software maintenance.

One small detail to keep in mind is that IE does not actually support the abbr tag, but developers can work around this by either using scripting or simply not caring that IE users get left out of having the ability to expand abbreviations.

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Advanced Ajax. Architecture and Best Practices by Shawn M. Lauriat


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