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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HTTP Status Codes and Headers
The request status of the Ajax object is equivalent to the HTTP status of the file that is being requested. HTTP status codes represent the response from the server based on the status of the file that is being requested. There are five categories of status codes available for the HTTP request and the XHR:
Informational: 1xx
Successful: 2xx
Redirection: 3xx
Client Error: 4xx
Server Error: 5xx
When a status code is received through the Web, it is represented as a number, such as when you try to go to a website and get a 404 error. This is not an arbitrary number; it is representative of the file status and in this case represents the “File Not Found” response. All status codes must be handled appropriately by the server ...
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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.