代码

var e = {
    avatar: "/uploads/20230816/b30044ba6735c83bdea9d43b85c4ae15.jpeg",
    mobile_code: "111",
    nickname: "小土豆"
};

e.aaa= e.avatar;
delete e.avatar;

e.bbb= e.nickname;
delete e.nickname;

在这段代码中，我们首先创建了新的属性avatarUrl和nickName，并将旧属性的值赋给它们。然后，我们使用delete操作符删除旧的属性。

var e = {
    aaa: "/uploads/20230816/b30044ba6735c83bdea9d43b85c4ae15.jpeg",
    mobile_code: "111",
    bbb: "小土豆"
};