如何检查Json单据在Node JS中是否有所有必需的密钥

function checkRequiredKeys(jsonString, requiredKeys) {
  try {
    const jsonObject = JSON.parse(jsonString);
    for (const key of requiredKeys) {
      if (!jsonObject.hasOwnProperty(key)) {
        return false;
      }
    }
    return true;
  } catch (error) {
    console.error('Invalid JSON format');
    return false;
  }
}

const jsonString = '{"key1": "value1", "key2": "value2", "key3": "value3"}';
const requiredKeys = ['key1', 'key2', 'key3', 'key4'];

const hasAllKeys = checkRequiredKeys(jsonString, requiredKeys);
console.log(hasAllKeys); // Output: false