Why Am I Getting a '$ is not defined' Error in My JavaScript Code?

Troubleshooting "$ is not defined" Error in JavaScript

In JavaScript, encountering an "Uncaught ReferenceError: $ is not defined" error typically stems from referencing the jQuery library incorrectly. This error indicates that your application is attempting to utilize jQuery's "$" variable, but jQuery has not been properly initialized or loaded.

Solution

To resolve this issue, ensure that jQuery is loaded and accessible to the page before you try to access it. The recommended approach is to include the jQuery library's script tag before any other JavaScript files that depend on it.

Here's an optimized version of your header that places the jQuery references at the top:

<script language="JavaScript" type="text/javascript" src="/js/jquery-1.2.6.min.js"></script>
<script language="JavaScript" type="text/javascript" src="/js/jquery-ui-personalized-1.5.2.packed.js"></script>
<script language="JavaScript" type="text/javascript" src="/js/sprinkle.js"></script>

By following this order, jQuery will be loaded and available before your JavaScript code attempts to use it. This ensures that the "$" variable is properly defined and that your tabs will function as expected.

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