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

Unveiling the Enigma of "$ is not defined" in JavaScript

Encountering the "Uncaught ReferenceError: $ is not defined" in your code can be perplexing, especially if it worked previously. This error arises when JavaScript attempts to access the "$" symbol, an essential part of jQuery, but cannot locate its definition.

The reason behind your code malfunctioning lies in the placement of your jQuery script references. As jQuery operates as a JavaScript library, it must be loaded before other scripts that depend on it. In your code, the "sprinkle.js" file is loaded before jQuery and the jQuery UI library. This incorrect order prevents jQuery from being available when your code attempts to use it, leading to the dreaded error.

To rectify this issue, simply rearrange the order of your script references in the HTML header. Place the references to the jQuery scripts first, followed by the "sprinkle.js" file:

<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>

This modification ensures that jQuery is loaded and available before your code attempts to interact with it. By adhering to this sequence, you can effectively eliminate the "Uncaught ReferenceError" and restore the expected functionality of your tabs.

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