JS如何知道子类是否重写了父方法

class Parent {
  method() {
    console.log('Parent method');
  }
}

class Child extends Parent {
  method() {
    console.log('Child method');
  }
}

const child = new Child();

if (child.method instanceof Parent.prototype.method) {
  console.log('Child has overridden Parent method');
} else {
  console.log('Child has not overridden Parent method');
}