转载声明：文章来源https://blog.csdn.net/ddsuuny/article/details/124422376 

对象 赋值，对象中增加字段和值

let json1 = {
      id: 1,
      name: "小胡",
};
let json2 = {
     ...json1,
      age: 14,
};
json2 = {
     id: 1,
     name: "小胡",
     age: 14,
};

在对象中取对应的元素

let json1 = {
      id: 1,
      name: "小胡",
      age: "18",
      addr: "大西路",
 };
 const json2 = (({ id, name }) => ({
     id,
     name,
 }))(json1);
    
 json2 = {
     id: 1,
     name: "小胡",
 };

对象赋值

let json1 = {
    id: 1,
    name: "小胡",
    age: "18",
    addr: "大西路",
};
let { id, name } = json1;
id = 1;
name = "小胡";
 
 
 
let json1 = {
      id: 1,
      name: "小胡",
      age: "18",
      addr: "大西路",
};
let { id, ...name } = json1;
name = {
      name: "小胡",
      age: "18",
      addr: "大西路",
 };