Ajax Hacks, 1st Edition by Bruce W. Perry

By Bruce W. Perry

Ajax, the preferred time period for Asynchronous JavaScript and XML, is among the most crucial mixtures of applied sciences for internet builders to understand nowadays. With its wealthy grouping of applied sciences, Ajax builders can create interactive net functions with XML-based internet companies, utilizing JavaScript within the browser to strategy the internet server reaction. Taking entire good thing about Ajax, although, calls for anything greater than your ordinary "how-to" booklet. What it demands is Ajax Hacks from O'Reilly. This worthwhile advisor presents direct, hands-on recommendations that take the secret out of Ajax's many services. each one hack represents a smart method to accomplish a particular activity, saving you numerous hours of attempting to find the fitting resolution. a sensible number of eighty insider tips and tips, Ajax Hacks covers all the technology's finer issues. are looking to construct next-generation net purposes this present day? This booklet can express you the way. one of the multitude of issues addressed, it exhibits you options for: utilizing Ajax with Google Maps and Yahoo Maps showing Weather.com info Scraping inventory fees Fetching postal codes construction internet types with auto-complete performance Ajax Hacks additionally encompasses a variety of complex hacks for sped up net builders. notice the best way to create large, maintainable bookmarklets, the way to use client-side garage for Ajax purposes, and the way to name a integrated Java item from JavaScript utilizing Ajax. The publication even addresses most sensible practices for checking out Ajax purposes and bettering upkeep, functionality, and reliability for JavaScript code. the newest in O"Reilly's celebrated Hacks sequence, Ajax Hacks well enhances different O'Reilly titles corresponding to Head Rush Ajax and JavaScript: The Definitive advisor.

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Maps Mash-up Hack 31. com XML Data Feed Hack 32. Use Ajax with a Yahoo! Maps and GeoURL Mash-up Hack 33. Debug Ajax-Generated Tags in Firefox Hack 34. Fetch a Postal Code Hack 35. Create Large, Maintainable Bookmarklets Hack 36. Use Permanent Client-Side Storage for Ajax Applications Hack 37. Control Browser History with iframes Hack 38. Send Cookie Values to a Server Program Hack 39. Use XMLHttpRequest to Scrape an Energy Price from a Web Page Hack 40. Send an Email with XMLHttpRequest Hack 41.

Com/s/sender"; httpRequest("POST",url,true); } /* Initialize a request object that is already constructed. Parameters: reqType: The HTTP request type, such as GET or POST. url: The URL of the server program. isAsynch: Whether to send the request asynchronously or not. send(queryString); } /* Wrapper function for constructing a request object. Parameters: reqType: The HTTP request type, such as GET or POST. url: The URL of the server program. asynch: Whether to send the request asynchronously or not.

XMLHTTP"); if (! send(null); } "Use the Request Object to POST Data to the Server" [Hack #2] shows how to implement a POST request with XMLHttpRequest. Hack 2. Use the Request Object to POST Data to the Server Step beyond the traditional mechanism of posting your user's form values. This hack uses the POST HTTP request method to send data, communicating with the server without disrupting the user's interaction with the application. It then displays the server's response to the user. The difference between this hack's approach to posting data and the typical form-submission method is that with Ajax, the page is not altered or refreshed when the application connects with the server to POST it the data.

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