How do you cache a variable in jQuery?
<p>If I'm constantly referencing:</p>

<pre><code>$('#' + n + ':nth-child(2)').val()
</code></pre>

<p>then how do I cache $('#' + n) into a variable?</p>

<pre><code>$n = $('#' + n);
$n:nth-child(2)
</code></pre>
