Why does the push method work on a jQuery object?
<pre><code>var test = $();
test.push( $('div')[0] );
</code></pre>

<p>This works. Any idea why? 
Since push is a array method, I don't understand why this works in this case, any idea?</p>

<p>Is there a practical use for it since you can use .add() ?</p>
