如何找到闭包绑定到的对象的类名？

function getClassNameFromClosure(closure) {
  const functionString = closure.toString();
  const match = functionString.match(/this\.(\w+)/);
  return match ? match[1] : null;
}

class MyClass {
  constructor() {
    this.value = 42;
  }

  myMethod() {
    return function() {
      console.log(this.value);
    };
  }
}

const instance = new MyClass();
const closure = instance.myMethod();
console.log(getClassNameFromClosure(closure)); // 输出: MyClass

function getClassNameFromClosure(closure) {
  const prototype = Reflect.getPrototypeOf(closure);
  if (prototype && prototype.constructor) {
    return prototype.constructor.name;
  }
  return null;
}

class MyClass {
  constructor() {
    this.value = 42;
  }

  myMethod() {
    return function() {
      console.log(this.value);
    };
  }
}

const instance = new MyClass();
const closure = instance.myMethod();
console.log(getClassNameFromClosure(closure)); // 输出: MyClass

function getClassNameFromClosure(closure) {
  try {
    throw new Error();
  } catch (e) {
    const stack = e.stack;
    const match = stack.match(/at (\w+)\.(\w+).*?\n/);
    return match ? match[1] : null;
  }
}

class MyClass {
  constructor() {
    this.value = 42;
  }

  myMethod() {
    return function() {
      console.log(this.value);
    };
  }
}

const instance = new MyClass();
const closure = instance.myMethod();
console.log(getClassNameFromClosure(closure)); // 输出: MyClass