How to add variable inside jQuery selector
<p>Good Day</p>

<p>I want to add a variable into a jQuery selector, but the syntax is wrong:</p>

<pre><code>var c = $(this).attr('class');

            if ($('#articleThumb ul li img').hasClass(c)) {
                $('#articleThumb ul li img.'+c').clone().appendTo('#articleFeatured');
            }
</code></pre>

<p>the class </p>

<p><strong>img.class</strong> is a variable and not a constant like <strong>img.birds</strong> for example...</p>

<p>Thank you</p>
