如何遍历包含对象数组并检查每个值是否等于null

const data = [
  { name: 'Alice', age: 25, address: null },
  { name: null, age: 30, address: '123 Main St' },
  { name: 'Bob', age: null, address: null }
];

function checkForNullValues(array) {
  array.forEach((item, index) => {
    for (const key in item) {
      if (item[key] === null) {
        console.log(`Item at index ${index} has a null value for key "${key}"`);
      }
    }
  });
}

checkForNullValues(data);

function deepCheckForNullValues(obj, path = '') {
  for (const key in obj) {
    const currentPath = path ? `${path}.${key}` : key;
    if (obj[key] === null) {
      console.log(`Null value found at path "${currentPath}"`);
    } else if (typeof obj[key] === 'object') {
      deepCheckForNullValues(obj[key], currentPath);
    }
  }
}

data.forEach((item, index) => {
  deepCheckForNullValues(item, `Item ${index}`);
});