[jQuery] How to get sum of children element's width

[David .Wu]

This is the way I got the size now, is there any function can do the
same thing?

Html code
<div>
        <img src="..........
        <img src="..........
        <img src="..........
</div>

<script>
        $(function()
        {
                $sum = 0;
                $('div img').each(function()
                {
                        $sum += $(this).width();
                });
                console.log($sum);
        });
</script>