What is this parameter when disabling a draggable?
<p>What is the 1 parameter below when disabling a draggable, is it the number of seconds to wait until the draggable is disabled ?</p>

<pre><code>$("#drop-target").droppable({
    drop: function(event, ui) {
        ui.draggable.draggable("disable", 1); 
});
</code></pre>

<p>I seen this in answer by Boblet at question : <a href="http://stackoverflow.com/questions/1324044/how-to-disable-jquery-ui-draggable">How to Disable Jquery UI Draggable</a></p>

<p>If this constructor is not valid why does it work ?</p>
