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