Download Ajax Design Patterns by Mahemoff, Michael PDF

By Mahemoff, Michael

Ajax, or Asynchronous JavaScript and XML, exploded onto the scene within the spring of 2005 and continues to be the most popular tale between internet builders. With its wealthy mix of applied sciences, Ajax presents astrong starting place for growing interactive net functions with XML or JSON-based internet providers by utilizing JavaScript within the browser to procedure the internet server response.

Ajax layout Patterns indicates you most sensible practices that may dramatically enhance your net improvement tasks. It investigates how others have effectively handled conflictingdesign rules some time past after which relays that details on to you.

The styles defined within the e-book fall into 4 categories:

  • Foundational know-how: Examines the uncooked applied sciences required for Ajax development
  • Programming: Exposes thoughts that builders have came upon to make sure their Ajax purposes are maintainable
  • Functionality and value: Describes the kinds of consumer interfaces you are going to encounter in Ajax functions, in addition to the recent forms of performance that Ajax makes possible
  • Development: Explains the method getting used to observe, debug, and try out Ajax applications

Ajax layout Patterns also will get you on top of things with middle Ajax applied sciences, comparable to XMLHttpRequest, the DOM, and JSON. Technical discussions are via code examples so that you can see for your self simply what is-and isn't-possible with Ajax. this convenient reference may help you to supply top quality Ajax architectures, streamline internet software functionality, and enhance the userexperience.

Michael Mahemoff holds a PhD in laptop technology and software program Engineering from the collage of Melbourne, the place his thesis was once ''Design Reuse in software program Engineering and Human-Computer Interaction.'' He lives in London and consults on software program improvement concerns in banking, health and wellbeing care, and logistics.

''Michael Mahemoff's Ajax layout Patterns is a very entire compendium of webapplication layout services, situated round yet now not constrained to Ajax strategies. Polished nuggets of layout knowledge are supported by way of tutorials and real-world code examples leading to a ebook thatserves not just as an intermediate to professional guide but additionally as an intensive reference for development wealthy interactive internet applications.''
--Brent Ashley, distant scripting pioneer

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Additional info for Ajax Design Patterns

Sample text

Event, depending on the browser. The first line of the callback ensures ev is set to whichever of these is valid, so we can assume for the rest of the callback that ev is a proper representation of the event that took place. The handler then shows a detailed report of the event by looping across each property. 2. Ajaxifying a Web App: One Pattern at a Time Patterns aren't necessarily about big upfront design; more often, they're used for refactoring and enhancing existing systems. The foundational technologies from the previous section can be seen as techniques for Ajaxifying a conventional web app in addition to being useful for building a new one.

With the business logic now in the server, we need a thin wrapper to expose it as a clean Web Service. Placing it in a separate file helps separate business logic from concerns about how it will be invoked from the browser. phtml as follows:

Popup (Chapter 15) Produce the results in a Popup. Portlet (Chapter 15) Encapsulate the search as a Portlet and slap it on a web site you maintain. Virtual Workspace (Chapter 15) The demo produces many, many results for long queries, which is why the input field is limited to five letters. Allow more letters and show the results as a Virtual Workspace. You'll probably want to make the algorithm itself more flexible. Unique URLs (Chapter 17) Make sure each query corresponds to a unique URL. 4. Development patterns Diagnosis (Chapter 18) patterns Apply the various tools mentioned in this chapter.

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