Professional Ajax 2nd Edition provides a developer-level tutorial of Ajax techniques, patterns, and use cases. The book begins by exploring the roots of Ajax, covering how the evolution of the web and new technologies directly led to the development of Ajax techniques. A detailed discussion of how frames, JavaScript, cookies, XML, and XMLHttp requests (XHR) related to Ajax is included. After this introduction, the book moves on to cover the implementation of specific Ajax techniques. Request brokers such as hidden frames, dynamic iframes, and XHR are compared and contrasted, explaining when one method should be used over another. To make this discussion clearer, a brief overview of HTTP requests and responses is included.Once a basic understanding of the various request types is discussed, the book moves on to provide in-depth examples of how and when to use Ajax in a web site or web application. Different data transmission formats, including plain text, HTML, XML, and JSON are discussed for their advantages and disadvantages. Also included is a discussion on web services and how they may be used to perform Ajax techniques. Next, more complex topics are covered. A chapter introducing a request management framework explores how to manage all of the requests inside of an Ajax application. Ajax debugging techniques are also discussed.The last part of the book walks through the creation of two full-fledged Ajax web applications. The first, FooReader.NET, is an Ajax-powered RSS reader. The second, called AjaxMail, is an Ajax-enabled email system. Both of these applications incorporate many of the techniques discussed throughout the book.Professional Ajax 2nd edition is written for Web application developers looking to enhance the usability of their web sites and web applications and intermediate JavaScript developers looking to further understand the language. Readers should have familiarity with XML, XSLT, Web Services, PHP or C#, HTML, CSS. This book is not aimed at beginners without a basic understanding of the aforementioned technologies. Also, a good understanding of JavaScript is vitally important to understanding this book. Those readers without such knowledge should instead refer to books such as Beginning JavaScript, Second Edition (Wrox, 2004, ISBN: 978-0-7645-5587-9) and Professional JavaScript for Web Developers (Wrox, 2005, ISBN: 978-0-7645-7908-0).Professional Ajax 2nd edition adds nearly 200 pages of new and expanded coverage compared to the first edition. Some of the new topics covered here include:Ajax Libraries including the Yahoo! Connection Manager, Prototype, and jQuery      Request Management with Priority Queues and the RequestManager ObjectComet push-based web systems and HTTP streamingMaps and Mashups with Geocoding, Google Maps API and Yahoo! Maps APIAjax Debugging with FireBug and Microsoft FiddlerASP.NET AJAX Extensions (formerly code-named "Atlas")And of course the Second Edition retains and updates the core first edition content including:the range of request brokers (including the hidden frame technique, iframes, and XMLHttp) and explains when one should be used over anotherdifferent Ajax techniques and patterns for executing client-server communication      Ajax patterns including predictive fetch, page preloading, submission throttling, incremental field and form validation, periodic refresh, multi-stage download and moreSyndication with RSS, Atom, and XParserJSON and creating an autosuggest textbox exampleweb site widgets for a news ticker, weather information, web search, and site search      Ajax Frameworks JSpan, DWR, and Ajax.NET ProfessionalA Web-based RSS/Atom aggregator case studyAn AjaxMail case studyThis book is also available as part of the 4-book JavaScript and Ajax Wrox Box (ISBN: 0470227818). This 4-book set includes:Professional JavaScript for Web Developers (ISBN: 0764579088)Professional Ajax 2nd edition (ISBN: 0470109491)Professional Web 2.0 Programming (ISBN: 0470087889)Professional Rich Internet Applications: Ajax and Beyond (ISBN: 0470082801)

Professional Ajax, 2nd Edition (Programmer to Programmer) PDF

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