jQuery - Why hasData Does Not Work?
<p>I assigned data into $clicked_row: </p>

<pre><code>$clicked_row.data("row", data);  
</code></pre>

<p>The following code does not work: </p>

<pre><code>alert($clicked_row.hasData("row")); // want to have Boolean output 
</code></pre>

<p>However, this works: </p>

<pre><code>alert($clicked_row.data("row")); // output the data 
</code></pre>

<p>Why?</p>
