让数组对象按照指定的顺序输出

Question

实现一个方法fun(tt,arr)，让数组对象arr，按照指定的顺序tt输出；

   let tt={        city:"城市",        age:"年龄",        name:"名字"
    }


    let arr=[
        {            name: "xiaoming",            age: 15,            city:"sz"
        },
        {            name: "xiaoming",            age: 16,            city:"sz"
        }
    ]

最后要得到的结果：

   let arr2=[
        {            city:"sz",             age: 15,            name: "xiaoming",
           
        },
         {            city:"sz",             age: 16,            name: "xiaoming",
           
        }
    ]




Answer 1

object本来就是无序的啊，直接用key取值不就行了吗