jquery对table做排序操作的实例演示

$.each(jsonarray, function(i, obj) {     troptions += "<tr data-sort-field-ftime=/""+obj.paiming+"/">";          troptions += "<td>"+(Number(obj.cdsPrem)/unitnow).toFixed(dotnow)+"</td>";     troptions += "<td>"+(Number(obj.cdjPrem)/unitnow).toFixed(dotnow)+"</td>";     troptions += "<td>"+(Number(obj.sumPrem)/unitnow).toFixed(dotnow)+"</td>";     troptions += "<td>"+obj.paiming+"</td>";     troptions += "</tr>";   });

//排序处理 function changepm(){  var sortType=$("#pm").val();  var $trList = $("#ta tbody > tr");//获取现有tr对象  //冒泡排序    for (var i = 0; i < $trList.length - 1; i++) {   for (var j = 0; j < $trList.length - 1 - i; j++) {    var value1 = parseInt($trList[j].attributes["data-sort-field-ftime"].nodeValue);     var value2 = parseInt($trList[j + 1].attributes["data-sort-field-ftime"].nodeValue);    if (sortType === "asc" ? value1 > value2 : value1 < value2) {     var $temp = $trList[j];     $trList[j] = null;     $trList[j] = $trList[j + 1];     $trList[j + 1] = null;     $trList[j + 1] = $temp;    }   }  }        //返回排序后的tr集合  //将原来的tr清空，再将排序后的tr插入到table的dom中  console.log($trList);  $trList.appendTo($("#ta > tbody").empty()); }