title: How to write "if not class" jQuery selector?
body: <p>I want to do something with var p:</p>
  
  <pre><code>var p = $("li:last");
  </code></pre>
  
  <p>But I don't want to do anything if there is a certain Class appended. I tried :not like this:</p>
  
  <pre><code>var p = $("li:last:not(.Class)");
  </code></pre>
  
  <p>This doesn't work. How can I exclude .Class in my var?</p>