title: jquery: $ is undefined
body: <p>I run a wordpress blog.
  It includes Jquery</p>
  
  <pre><code>&lt;script type='text/javascript' src='/wp-includes/js/jquery/jquery.js?ver=1.12.3'&gt;&lt;/script&gt;
  &lt;script type='text/javascript' src=/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.0'&gt;&lt;/script&gt;
  </code></pre>
  
  <p>When I run <code>jQuery</code>
  I got:</p>
  
  <pre><code>function (a,b){return new n.fn.init(a,b)}
  </code></pre>
  
  <p>when I try</p>
  
  <pre><code>$("div") 
  </code></pre>
  
  <p>I got </p>
  
  <blockquote>
    <p>Uncaught TypeError: $ is not a function(…)</p>
  </blockquote>
  
  <p>when I try <code>jQuery("div")</code></p>
  
  <p>I got: </p>
  
  <blockquote>
    <p>a.fn.init[203]</p>
  </blockquote>
  
  <p>How can I use Jquery ?</p>