处理好数据的排序，在渲染dom不就行了

先把价格取到，然后排好序，循环往li里面插

先处理数据 再渲染DOM

   <ul id="ul-list">
        <li class="li-item">1</li>
        <li class="li-item">9</li>
        <li class="li-item">8</li>
        <li class="li-item">11</li>
        <li class="li-item">10</li>
    </ul>

function sortUl (){
    var list = document.getElementById("ul-list");
    var listArr = document.getElementsByClassName("li-item");
    for (var i = 0 ; i < listArr.length ; i ++){
        for(var j = 0 ; j < listArr.length - i -1 ; j ++){ 
            if(parseInt(listArr[j].innerHTML) > parseInt(listArr[j+1].innerHTML)){
                list.insertBefore(listArr[j+1],listArr[j]);
            }
        }
    }
} 
sortUl ();

 var data = [
    {"price":100,"data":{"name":"obj1"}},
    {"price":200,"data":{"name":"obj2"}},
    {"price":300,"data":{"name":"obj3"}},
    {"price":400,"data":{"name":"obj4"}},
    ];
data.sort(function(a,b){
    if(a.price>b.price)
    return -1;
    if(a.price<b.price)
    return 1;
    if(a.price==b.price)
    return 0;
});

以jquery为例
var goodsArray = $("ul").empty().children("li");
goodsArray.sort(function(a,b){
    var priceOld = $(a).data("price");//假设价格就设置的li上面
    var priceNew = $(a).data("price");
    if(priceOld>priceNew)return -1;
    if(priceOld<priceNew)return 1;
    return 0;
}).appendTo($("ul"));