jQuery order by date in data attribute

Question

If i have this markup:

item 1
item 1         


        

Answer 1

function sortDates(a, b)
{
    return new Date(b).getTime() - new Date(a).getTime();
}

var dates = [];
var _old;

$('p').each(function(){
    _old = $(this).parent();
    dates.push($(this).data('date'));
});

var sorted = dates.sort(sortDates);
var _new = $('
').insertBefore(_old);

$.each(sorted,function(i,val){
    $('p[data-date="' + val + '"]').appendTo(_new);
});

_old.remove();

Working demo: http://jsfiddle.net/AlienWebguy/JhgSw/