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Asked: 2026-06-13T20:33:29+00:00

This is my HTML beginning: <!DOCTYPE html> <html> <head> <script type=text/javascript src=/Scripts/jquery-1.8.2.min.js></script> <script src=/Scripts/jquery.signalR-0.5.3.js

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This is my HTML beginning:

<!DOCTYPE html>
<html>
<head>
    <script type="text/javascript" src="/Scripts/jquery-1.8.2.min.js"></script>
    <script src="/Scripts/jquery.signalR-0.5.3.js" type="text/javascript"></script>
    <script src="/Scripts/MyScript.js" type="text/javascript"></script>

    <title>Some title</title>
</head>

I tried adding just before </head>:

<script type="text/javascript" src="/signalr/hubs"></script>

But it doesn’t help.

I also tried to remove everything besides jQuery and signalR scripts.

Please note: All scripts, including jquery.signalR-0.5.3.js (and hubs, if I add it) are loaded successfully (I can single step it with Chrome “Developer Tools”).

So why I don’t have $.connection object defined ?

Edit:

I cleaned all unnecessary code, and found out meanwhile that:

  1. $.connection does exist when I’m in MyScript.js, but I tried to test it first using the chrome console. In the console it does not exist… I don’t understand why.

  2. I save $.connection for the moment, in order to test it, in someGlobalObj:

    someGlobalObj = $.connection;

    and that works…

So my updated question would be: how-come $.connection is visible during my script, but invisible in the chrome console ($, or jQuery are globals) ?

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1 Answer

  1. Editorial Team

    how-come $.connection is visible during my script, but invisible in the chrome console ($, or jQuery are globals)?

    There are only two explanations: Something that executes after your script (a timeout, some other script)…

    • …deletes the connection property of the jQuery object
    • …overwrites the global $ (and even jQuery?) variables with similiar object(s) which don’t have the connection property.

    The second one could be the case if you also use other libraries (like Prototype).

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