Typescript将对象转换为忽略属性的类

function ignoreProperty(target: any, propertyKey: string) {
  // 使用属性装饰器将属性设置为不可枚举
  Object.defineProperty(target, propertyKey, {
    enumerable: false,
  });
}

function ignoreProperties(target: any) {
  // 使用类装饰器遍历类的属性，并将它们设置为不可枚举
  for (const propertyKey in target.prototype) {
    ignoreProperty(target.prototype, propertyKey);
  }
}

@ignoreProperties
class IgnoredPropertiesClass {
  public name: string;
  public age: number;

  constructor(name: string, age: number) {
    this.name = name;
    this.age = age;
  }

  public sayHello() {
    console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`);
  }
}

const obj = new IgnoredPropertiesClass("John", 25);
console.log(obj.name); // 输出: John
console.log(obj.age); // 输出: 25
console.log(obj.sayHello()); // 输出: Hello, my name is John and I'm 25 years old.

for (const propertyKey in obj) {
  console.log(propertyKey); // 不会输出任何属性，因为它们被设置为不可枚举
}