add and remove item dynamically in dropdown
<p>How can I add or remove dropdown items dynamically in jQuey? 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 me?</p>
