Javascript, execute function
<p>I have next function  </p>

<pre><code>  var hideAll = function() {
    // code  
    return ///...  
  };  
</code></pre>

<p>And I am using this function like callback in another function.<br>
When I am using it like   </p>

<pre><code>function (params, hideAll) {}  
</code></pre>

<p>all working well, but when I am using  </p>

<pre><code>function (params, hideAll() ) {}    
</code></pre>

<p>all not working well!  </p>

<p>So my question is, what is difference between <code>hideAll</code> and <code>hideAll()</code> function executions?</p>
