By Chris Ullman
Utilizing confirmed examples and explaining suggestions step-by-step, this e-book indicates you the way construction Ajax-enabled websites and purposes permits extra interactive person interfaces than ever ahead of. you are going to find out about the variations in services among client-side and server-side improvement concepts, in addition to how Ajax crosses this boundary. you will additionally observe how Ajax ideas might be summed up by way of styles (which are improvement types that you will use repeatedly). With a mastery of those concepts, it is easy to breathe new lifestyles into your websites.
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Extra info for Beginning Ajax
The Dynamic HTML techniques replaced Flash because Flash requires you to have the latest Macromedia plug-in installed and the wrapper for Flash can take a long time to load. Users complained about this. Flash is a great application, but here Ajax techniques prove more efficient. Basecamp Basecamp is a web-based tool for managing and tracking projects. com. Once again, you have to sign up to use it, but there is a free sign-up option with a reasonable range of capabilities included. Basecamp employs Ajax when adding people to a company, adding companies to a project, adding/editing/deleting/reordering/completing to-do items, adding/editing/deleting/reordering to-do lists, adding/editing/deleting time items, and renaming attachments to messages (Figure 1-2).
Htm 25 Chapter 1: Introducing Ajax Just as with server-side technologies, the XMLHttpRequest object requires the server to work correctly. If it works correctly, you will see a page with five menu options on the left-hand side. Four of these options are inactive. The active option is Hotel Rome, and if you hover the mouse over it, you will see a blue menu appear (Figure 1-8). Figure 1-8: Hovering over the active option of Hotel Rome. 8. Now, this is the neat bit. Say that the XML document that you used has just been updated to reflect the fact that you have no availability on the Ponderosa suite.
Strain on the Browser If you push the entire burden for processing data back to the browser, you then become more reliant on the browser and the user’s machine to do the processing for you. Waiting for the browser to process a page is no better than waiting for a web server to get back to you with a response. In fact, in some cases, it could be worse if it is IE you’re waiting for and it decides to hog all of the processing space on your machine while it’s doing the processing and make the whole machine respond at a crawl.
Beginning Ajax by Chris Ullman