title: .appendChild(); is not a function
body: <p>So I seem to keep getting this error $(...).appendChild is not a function! I would like to quite simply create an element, give it some text and append it back to the ul. I have checked all references on jquery and have come back empty handed.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>const ul = $('#element');
  
  const $li = $('&lt;li&gt;');
  $li.innerText = 'hello';
  $('#blog-prev-title').appendChild($li);          </code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;ul id="element"&gt;
  &lt;/ul&gt;</code></pre>
  </div>
  </div>
  </p>