The best way to check is mouse move outside window?
<p>So I have to check 4 sides if I want to limit mouse in window to take action like</p>

<pre><code>$(document).on('mousemove',function(e){
  if (e.pageX &gt; 10 &amp;&amp; e.pageX&lt;$(window).width-10 &amp;&amp; e.pageY&lt; $(window).height()-10&amp;&amp; e.pageY &gt;10){
//are there any better way?
}

});
</code></pre>
