October 2006
Intermediate to advanced
288 pages
5h 55m
English
Content preview from Ajax for Web Application DevelopersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Creating a Validation Object
Since we are validating user information, the JavaScript validation object that we are going to be creating will be called UserValidator. This object will have four methods: an initialize method for initializing all the object’s local variables; a setMode method, which sets the form mode from login to register; a validate method, which is the Ajax part that will make XHRs to a PHP object; and an onValidation method, which will be used as the callback method for the XHR and ultimately display the feedback to the user. When the object is created, it automatically calls the initialize method to set the local object variables. When a request is made, the validate method is called, which sets the onValidation method as ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.