At the Forge - Beginning Ajax
However, we also see that there are security and efficiency problems with this approach. A better technique would be to send only the requested user name in the Ajax call and get a simple yes or no answer from the server, indicating whether the user name had been taken already. Next month, we will do just that, using an Ajax POST query instead of our GET query from this month, and replacing usernames.txt with a server-side program that works in conjunction with our Ajax call.
There has been an explosion of books and articles about Ajax programming in the last year, and I am slowly making my way through many of them. Two of the best that I've read are both published by O'Reilly. Head Rush Ajax is aimed at beginners and teaches the introductory material in a fun, effective way. Ajax Design Patterns, which I mentioned earlier in this article, is probably my favorite Ajax book so far (despite its design and editing, which aren't up to the usual O'Reilly standards). This latter book is a good introduction to the subject for experienced Web developers.
The Ajaxian.com Web site has a large number of links, tutorials and articles having to do with Ajax development on a variety of different platforms. If you're interested in Ajax development, it's worth keeping this site in your RSS reader or bookmarks.
Reuven M. Lerner, a longtime Web/database consultant, is a PhD candidate in Learning Sciences at Northwestern University in Evanston, Illinois. He currently lives with his wife and three children in Skokie, Illinois. You can read his Weblog at altneuland.lerner.co.il.
|Contrast Security's Contrast Enterprise||Aug 30, 2016|
|illusive networks' Deceptions Everywhere||Aug 29, 2016|
|Happy Birthday Linux||Aug 25, 2016|
|ContainerCon Vendors Offer Flexible Solutions for Managing All Your New Micro-VMs||Aug 24, 2016|
|Updates from LinuxCon and ContainerCon, Toronto, August 2016||Aug 23, 2016|
|NVMe over Fabrics Support Coming to the Linux 4.8 Kernel||Aug 22, 2016|
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Contrast Security's Contrast Enterprise
- illusive networks' Deceptions Everywhere
- Happy Birthday Linux
- What I Wish I’d Known When I Was an Embedded Linux Newbie
- ContainerCon Vendors Offer Flexible Solutions for Managing All Your New Micro-VMs
- New Version of GParted
- Returning Values from Bash Functions
- All about printf
- Tech Tip: Really Simple HTTP Server with Python
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide