jQuery UI " $("#datepicker").datepicker is not a function"
I struggled with a similar problem for hours. It then turned out that jQuery was included twice, once by the program that I was adding a jQuery function to and once by our in-house debugger.
If there is another library that is using the $ variable, you can do this:
var $j = jQuery.noConflict();$j("#datepicker").datepicker();Also make sure your javascript includes are in the correct order so the jquery core library is defined before the jquery.ui. I've had that cause issues.
jQuery “ $(”#datepicker“).datepicker is not a function”
I have fixed the issue by placing the below three files in the body section of the form at the end.
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript"></script> <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="Stylesheet" type="text/css" />