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Editorial Team
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Asked: 2026-05-18T12:44:01+00:00

I’d like to make a div’s contents update as soon as a new row

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I’d like to make a div’s contents update as soon as a new row appears in a MySQL database (I’m making a webmail app). As I’m writing this, it’s becoming more clear to me that I can’t send some sort of server message to the client asking it to update, so I’ve come to the conclusion that the best way to have live updates is to use a jQuery ajax call, triggered by a setTimeOut event.

My question is: is there a better way to do this? Or if I have to use setTimeOut, what time interval should I set to keep the optimal balance between server usage and update times?

The code run every AJAX call will be one query (to fetch new mails) and a loop to post it to a ul.

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1 Answer

  1. Editorial Team

    I think HTML5 WebSockets might be what you’re looking for…

    There’s an example usage here.

    As you mention, support is limited to Chrome and Safari at present.

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