js 对象序列化

// 序列化
const obj = { name: "Alice", age: 25 };
const jsonString = JSON.stringify(obj);
console.log(jsonString); // 输出: '{"name":"Alice","age":25}'

// 反序列化
const parsedObj = JSON.parse(jsonString);
console.log(parsedObj); // 输出: { name: 'Alice', age: 25 }

const obj = { name: "Alice", age: 25, hobbies: ["reading", "swimming"] };
const clonedObj = structuredClone(obj);
console.log(clonedObj); // 输出: { name: 'Alice', age: 25, hobbies: ['reading', 'swimming'] }

const CircularJSON = require('circular-json');
const obj = { name: "Alice" };
obj.self = obj;
const jsonString = CircularJSON.stringify(obj);
console.log(jsonString); // 输出: {"name":"Alice","self":"~"}
const parsedObj = CircularJSON.parse(jsonString);
console.log(parsedObj); // 输出: { name: 'Alice', self: [Circular] }

function serialize(obj) {
  return JSON.stringify(obj, (key, value) => {
    if (typeof value === 'function') {
      return { __type: 'function', value: value.toString() };
    }
    return value;
  });
}

function deserialize(jsonString) {
  return JSON.parse(jsonString, (key, value) => {
    if (value && value.__type === 'function') {
      return new Function('return ' + value.value)();
    }
    return value;
  });
}

const obj = { name: "Alice", greet: function() { console.log("Hello"); } };
const jsonString = serialize(obj);
const parsedObj = deserialize(jsonString);
parsedObj.greet(); // 输出: Hello