Js自定义排序

//背包道具排序
			function conpareprops(index){
					return function(object1,object2){
							var value1=object1[index];
							var value2=object2[index];
							if (value2 < value1) {
		                        return 1;
		                    }
		                    else if (value2 > value1) {
		                        return -1;
		                    }
		                    else {
		                        return 0;
		                    }
						}
				}

var arr1 = [];
            for (var key in props) {
                arr1.push(props[key]);
            }
            arr1.sort(conpareprops("index"));
            for(var key in arr1){
            	$("#datas4").append("<tr><td>"+arr1[key].id+"</td><td>"+arr1[key].count+"</td><td>"+arr1[key].index+"</td></tr>");
                }