title: Add and remove item dynamically in dropdown
body: <p>How can I add or remove dropdown items dynamically in jQuery? Below code is not working</p>
  
  <pre><code>$("#dropdownId").remove("&lt;option value='12'&gt;testing&lt;/option&gt;");
  $("#dropdownId").add("&lt;option value='12'&gt;testing&lt;/option&gt;");
  </code></pre>
  
  <p>Can anyone suggest a way to do this?</p>