How can I move all divs before an element to after it?

I have a div that I've selected in jQuery and it has div's preceding it. I want to select all of them, copy them to AFTER the开发者_StackOverflow中文版 selected div and delete them from their original location.

var selected = $('#selected');
selected
    .prevAll()
    .insertAfter(selected);

Would it not be easier to move the selected div to the front of the others?

$('#selected_div').insertBefore($('#selected_div').siblings('div:first'));