如何检查两个对象的相等性(仅特定键值)

function checkEquality(obj1, obj2, keys) {
  for (let key of keys) {
    if (obj1.hasOwnProperty(key) && obj2.hasOwnProperty(key)) {
      if (obj1[key] !== obj2[key]) {
        return false;
      }
    } else {
      return false;
    }
  }
  return true;
}

// 示例对象
const obj1 = {
  name: 'Alice',
  age: 25,
  city: 'New York'
};

const obj2 = {
  name: 'Alice',
  age: 30,
  city: 'New York'
};

// 检查 name 和 city 的相等性
const keysToCheck = ['name', 'city'];
const isEqual = checkEquality(obj1, obj2, keysToCheck);

console.log(isEqual); // 输出：true