jquery handling key combinations
<p>I know that when <code>keypress</code> event occure than we can access which key is pressed by event object property <code>keycode</code>, but i want to now how we can handle key combinations through jQuery like <code>cntrl + D</code> ..etc? </p>

<p>In code i want to do something like :</p>

<pre><code>$(document).on("keypress", function(e) { 
    if( /* what condition i can give here */ )           
        alert("you pressed cntrl + Del");
});
</code></pre>
