title: Trying to use datepicker with jquery CDN
body: <p>I am trying to use the datepicker from the jQuery UI using the CDN provided by jQuery and I am getting these errors in Google Chrome and I would like to know why.
  <br><br>jquery-ui.js:14 Uncaught ReferenceError: jQuery is not defined(anonymous function) <br><br>
  Uncaught ReferenceError: $ is not defined</p>
  
  <pre><code> &lt;!DOCTYPE html&gt;
      &lt;html&gt;
        &lt;head&gt;
        &lt;meta charset="utf-8"&gt;
        &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
        &lt;script src="https://code.jquery.com/ui/1.12.0/jquery-ui.js" integrity="sha256-0YPKAwZP7Mp3ALMRVB2i8GXeEndvCq3eSl/WsAl1Ryk="   crossorigin="anonymous"&gt;&lt;/script&gt;
      &lt;/head&gt;
  ...
  </code></pre>