By Thomas A. Powell
The Definitive consultant to Ajax internet program Development
Evolve from the click-and-wait programming trend to the newest internet 2.0 paradigm utilizing this accomplished consultant to Ajax. Written by way of net improvement professional Thomas Powell, the publication lays out each characteristic of Ajax along specified causes and real-world code examples.
- discover the entire quirks and information within the XMLHttpRequest object
- deal with disparate info codecs, together with XML, JSON, CSV, YAML, and more
- take care of networking concerns, together with timeouts, retries, reaction ordering, and quite a few server and content material errors
- safe Ajax functions utilizing authentication, obfuscation, and encryption
- enforce universal Ajax UI styles corresponding to vehicle recommend, click-to-edit, and drag-and-drop
- remedy troubling Ajax structure difficulties, together with again button, heritage, and bookmarking issues
- research Ajax's position in net 2.0 and internet services
- discover push variety conversation utilizing Comet and Flash
- become aware of the way forward for offline internet software entry and operation
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Additional info for Ajax: The Complete Reference
In this scenario you will present the user with a set of choices to indicate their feelings about a particular product, idea, page, or whatever you are interested in finding their opinion on. The user interface for the rating system might range from a simple set of radio buttons to more complex user interface widgets such as a slider 15 16 Part I: Core Ideas or even some form of animated rollovers such as the ubiquitous star ratings found on many websites. Whatever the visual presentation and form of the communication used in the rating system, the underlying approach will be quite similar.
37 38 Part I: Core Ideas // dump the response image and end the script fpassthru($fp); exit; } When the image arrives, the result is read from the cookie in the script’s response callback function. While this sounds easy enough, reading the cookie properly does require a bit of string manipulation as shown in the next code fragment. length); } return null; } var results = readCookie("PollResults"); With the response in hand and unpacked from the cookie, it is put in the page using basic DOM methods.