javascript:发布到api时序列化/反序列化类实例

class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }
}

const person = new Person('Alice', 30);
const jsonString = JSON.stringify(person);

console.log(jsonString); // 输出: {"name":"Alice","age":30}

const jsonString = '{"name":"Alice","age":30}';
const personObj = JSON.parse(jsonString);

console.log(personObj); // 输出: { name: 'Alice', age: 30 }

const person = new Person('Alice', 30);
const jsonString = JSON.stringify(person, ['name']);

console.log(jsonString); // 输出: {"name":"Alice"}

class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }
}

const jsonString = '{"name":"Alice","age":30}';
const personObj = JSON.parse(jsonString, (key, value) => {
  if (key === '') return new Person(value.name, value.age);
  return value;
});

console.log(personObj); // 输出: Person { name: 'Alice', age: 30 }

const CircularJSON = require('circular-json');

class Person {
  constructor(name, friend) {
    this.name = name;
    this.friend = friend;
  }
}

const alice = new Person('Alice', null);
const bob = new Person('Bob', alice);
alice.friend = bob;

const jsonString = CircularJSON.stringify(alice);
console.log(jsonString); // 输出: {"name":"Alice","friend":{"name":"Bob","friend":{"name":"Alice","friend":null}}}