jQuery order by date in data attribute

Question

If i have this markup:

item 1
item 1         


        

Answer 1

Demo

Super simple with an array sort:

$("p").sort(function(a,b){
    return new Date($(a).attr("data-date")) > new Date($(b).attr("data-date"));
}).each(function(){
    $("body").prepend(this);
})

Reverse order (in case I misunderstood you) is as easy as flipping the greater than symbol

$("p").sort(function(a,b){
    return new Date($(a).attr("data-date")) < new Date($(b).attr("data-date"));
}).each(function(){
    $("body").prepend(this);
})