javascript - 如何在不首先复制所有值的情况下移动数组中对象的属性值？

Question

例如，假设我有数组:

let students=[
    {"name":"a","uid":"001"},
    {"name":"b","uid":"002"},
    {"name":"c","uid":"003"}
];

我想移动uid的值，预期结果:

let students=[
    {"name":"a","uid":"002"},
    {"name":"b","uid":"003"},
    {"name":"c","uid":"001"}
];

如果不首先将所有 uid 复制到新数组中，我该怎么做？我试过:

let students=[
        {"name":"a","uid":"001"},
        {"name":"b","uid":"002"},
        {"name":"c","uid":"003"}
    ];
let temp=students[0].uid;
for(let i=0;i<students.length;i++){
  students[(i+1)%students.length].uid=temp;
  temp=students[i].uid;
}

for(let s of students){
  console.log(s.name+':'+s.uid+',');
}

但它并没有像我预期的那样工作。

Answer 1

let students=[
        {"name":"a","uid":"001"},
        {"name":"b","uid":"002"},
        {"name":"c","uid":"003"}
    ];

let temp = students[0].uid
for(let i=0;i<students.length;i++){
  let temp2 = students[(i+1)%students.length].uid
  students[(i+1)%students.length].uid=temp;
  temp = temp2
}

for(let s of students){
  console.log(s.name+':'+s.uid+',');
}