Difference between jQuery code structures
<p>What is the difference between these jQuery code structures, or is there no difference.
Are they both an alias for <code>$(document).ready(function(){</code> and if so, why the dollar in the first code snippet?</p>

<pre><code>jQuery(function($){
     // stuff
});
</code></pre>

<p>AND</p>

<pre><code>$(function() {
        // stuff
});
</code></pre>
