如何限定对象属性的不等性

const property1 = Symbol();
const property2 = Symbol();

const obj = {
  [property1]: 'value1',
  [property2]: 'value2'
};

console.log(obj[property1]); // 输出：value1
console.log(obj[property2]); // 输出：value2

const obj = {};

Object.defineProperty(obj, 'property', {
  value: 'value',
  writable: false
});

console.log(obj.property); // 输出：value

// 尝试修改属性的值
obj.property = 'new value'; // 不会生效

console.log(obj.property); // 输出：value

const obj = new Proxy({}, {
  set(target, property, value) {
    throw new Error(`Cannot modify property "${property}"`);
  }
});

obj.property = 'value'; // 会抛出错误

console.log(obj.property); // undefined