如何在JavaScript中继承私有成员？

const privateMember = Symbol('privateMember');

class Parent {
  constructor() {
    this[privateMember] = 'Private Member';
  }
}

class Child extends Parent {
  constructor() {
    super();
    console.log(this[privateMember]);
  }
}

const child = new Child(); // 输出：Private Member

const privateMembers = new WeakMap();

class Parent {
  constructor() {
    privateMembers.set(this, 'Private Member');
  }
}

class Child extends Parent {
  constructor() {
    super();
    console.log(privateMembers.get(this));
  }
}

const child = new Child(); // 输出：Private Member