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Apparently, Opera 9 supports Server-Sent Events which you can read about in the WHATWG Web Applications 1.0 specification. Their demo application is a little chat program, which is a very obvious example of the technology.
There’s many times when I’ve wanted to add this to my applications: in Bugtagger I have to ask the service if a new message from a customer has been posted to a bug, every n seconds. It would be far more efficient for the serve to send a message using this technology.
And, since Opera’s so popular on embedded and mobile platforms, if this makes its way to mobile p…
I’ve been writing some fairly complex JavaScript for a small project designed by my fiancé (she makes demands for features like autosave without realising the amazing trickery required), and I started thinking about threading.
When you use XMLHttpRequest to fetch or send data, you create methods or functions to act as callbacks. At some point the callbacks are run, and data magically appears into your classes. That feels a lot like threading to me, the fact it’s asynchronous. I remember reading Thomas Fuchs saying something about JavaScript being single-threaded, a quick search found …
