Default value assigned by .data() in jquery?
<p>Is there a default value assigned to an element when</p>

<pre><code>var thisvar = $(this).data("somekey");
</code></pre>

<p>is called?</p>

<p>Sometimes I get "undefined" or "on" when I run</p>

<pre><code>alert(thisvar);
</code></pre>

<p>Shouldn't the return value always be undefined?</p>

<p>Thank you!</p>
