By Shawn M. Lauriat

“I a great deal loved how this ebook covers the complete Ajax program lifecycle and never purely coding innovations. someone who's trying to develop into a qualified front-end developer will relish the architectural perception and most sensible practices added by means of this book.”  — Andi Gutmans, Co-Founder & Co-Chief expertise Officer of Zend Technologies

 

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

 

Advanced Ajax: structure and most sensible Practices is the definitive consultant to development business-critical, production-quality net functions with Ajax. Shawn M. Lauriat systematically addresses the layout, structure, and improvement concerns linked to Ajax, delivering confirmed styles and powerful code examples to be had in no different e-book. You’ll locate most sensible practices for addressing the whole spectrum of matters firm Ajax builders face: scalability, functionality, safety, reliability, flexibility, maintainability, and reusability.

 

Writing for knowledgeable internet builders, Lauriat grants clean principles and stylish suggestions: meaty technical content material, awarded with remarkable readability. among the subject matters he covers in unheard of intensity: cleanly enforcing JavaScript customized occasions to minimize coupling and to reinforce flexibility; overcoming Ajax’s conventional accessibility obstacles; lowering community latency via compression and different options; and masses extra. insurance includes 

  • Planning Ajax interfaces for simplicity, readability, and intuitiveness
  • Creating scalable, maintainable architectures for client-side JavaScript
  • Using the most recent instruments to profile, validate, and debug client-side code
  • Architecting the server aspect for safeguard and performance, whereas limiting loaded info, items, and activities to present requests
  • Protecting opposed to the main common and demanding Ajax defense dangers
  • Optimizing each section of an Ajax software, 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 internet Site

This book’s better half site (http://advancedajax.frozen-o.com) doesn’t simply offer the entire code: It exhibits code examples in action, as development blocks of a true internet software interface.

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Sample text

2 Progress Indicators Progress indicators pose more of a challenge in Ajax-driven interfaces than in desktop applications because of the way in which the XMLHttpRequest object works. You have little way of reliably knowing how long a request will take, or whether it will return at all. 7). 7 A CSS/JavaScript progress indicator displaying loaded files. This tool presents one challenge from a usability standpoint, in that many progress bars out there today overlay most, if not all, of the interface.

IndexOf in the window object instead. In other browsers, adding or even replacing methods of globally available objects (such as Array, XMLHttpRequest, and String) has support by default simply because they provide true JavaScript support. This idea also rings true when dealing with JavaScript performance. When dealing with animation such as fading, sliding, or anything else consisting of fluid transitions, different browsers can have drastically different performance, especially when considering the processors and memory available on the machine itself.

7 A CSS/JavaScript progress indicator displaying loaded files. This tool presents one challenge from a usability standpoint, in that many progress bars out there today overlay most, if not all, of the interface. Especially when they are unannounced, these overlays can completely interrupt the user’s workflows rather than provide additional information on a background process. If the user should see the progress as part of the user interface, then a section of the interface out of the user’s way could exist solely as a global output mechanism to the user.

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