jquery TypeError: invalid 'in' operand a

jquery TypeError: invalid 'in' operand a

解决:

node2:/django/mysite/static/Js/Equipment#cat rangeIndex.js 
$(function(){
	
	var _env_bt = $(".content .con #condition .es_2");
	
	_env_bt.on('click',function(){
		var __range_start = $(".equipment_sz1").val();
		var __range_stop = $(".equipment_sz2").val();
                console.log(__range_start);
                console.log(__range_stop);
		var data={};
                data.start = __range_start;
		data.stop = __range_stop;
		var successfn = function(jdata){
                    var jdata=eval(jdata);
                    $(".gridtable").empty();
					var _HTML="<tr><th>IP </th><th>Info</th><th>ENV</th></tr>";
					$.each(jdata,function(i,val){
						_HTML=_HTML+"<tr><td>"+jdata[i][0]+"</td><td>"+jdata[i][1]+"</td><td>"+jdata[i][2]+"</td></tr>";
					});
					$(".gridtable").html(_HTML);
                console.log(_HTML);
                };
		var errorfn = function(){
                    alert("数据获取出错");
                };
	$.ajax({
				type: "get",
				data: data,
				url: "/api/ip_range/",
				dataType: "text",
				success: function(d){
					successfn(d);
				},
				error: function(e){
					errorfn(e);
				}
			});
	});
	
});




添加：
var jdata=eval(jdata);