executing function in the handler
<p>what difference does it make:</p>

<pre><code>function a(){
//...
}

setInterval(a, 1000);
</code></pre>

<p>vs </p>

<pre><code>setInterval(function(){
a();
}, 1000);
</code></pre>

<p>Except of the obvious that I can pass parameter in the second case.</p>

<p>It should not necessarily be setInterval. Any function that can accept function handler.</p>
