js 原生对象排序

//对象属性排序
        function compare(propertyName) {
            return function (object1, object2) {
                var value1 = object1[propertyName];
                var value2 = object2[propertyName];
                if (value2 < value1) {
                return -1;
                }
                else if (value2 > value1) {
                return 1;
                }
                else {
                return 0;
                }
            }
        }
        var data = obj[0]["day"];
       data.sort(compare("time")).reverse(); 

var obj = [{
"name":"T",
"day":[
{
"time":"3",
"price":"30"
},
{
"time":"5",
"price":"50"
},
{
"time":"6",
"price":"60"
},
{
"time":"7",
"price":"70"
}
]
}
]

原声数据排序