Over at MD Groves there is a simple yet useful tutorial on checking user name availability, this can also be extended to check city and state on zip codes etc.
For absolutely no reason whatsoever, I decided to create a simple example of AJAX, based on the framework I layed out in an earlier post.
The goal [...]
Over at MD Groves there is a simple yet useful tutorial on checking user name availability, this can also be extended to check city and state on zip codes etc.
For absolutely no reason whatsoever, I decided to create a simple example of AJAX, based on the framework I layed out in an earlier post.
The goal of this AJAX example is to allow a user who is registering for your site to see if the username they want to use is taken already or not, without having to submit a form and reload the page. I believe Digg uses this, and I hear it’s all the rage for Astronomy-based dating sites. You can skip to the implemented example in action here. Yeah, I did it in ASP this time, instead of PHP…FOR NO RAISIN WHATSOEVER, except maybe to show that the same JS framework works for both ASP and PHP.
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5 Responses
It’s actually “MD” Groves, but close enough
Thanks for the link, I’m glad someone is finding it useful!
Fixed
true, it’s a nice example for the advantages of AJAX
BUT:
true as well, this is an example how to open your webservice that needs user/password logins for hackers. on a normal webpage, hackers have to tryout logins or signups very inconveniantly by typing in a name and wait for the answer whether the name is already in use.
with the ajax solution they get the response almost instantly, easing their hackery for a significant amount of time! keep that always in mind, if you think you wanna use this feature!
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I’ll disagree with you here as well, CountZero.
I don’t think hackers are having trouble finding valid usernames, as many sites like Digg, AJAX Lessons, eBay, etc., show you all kinds of usernames as part of the service. Finding usernames isn’t hard, finding passwords is.