如何在Node JS中获取键的对象的键[重复]

Question

我正在尝试创建一些脚本，该脚本将接受一个对象，然后返回该对象中所有键的列表，该列表适用于两级键。但是一旦键有另一个对象或者键是一个包含对象的数组，脚本就不再返回键。有没有一种简单的方法可以做到这一点，还是我必须手动遍历所有键并检查是否有另一个对象？下面是一个示例对象。就我而言，我不关心值，但我需要所有键：

object1 = {
            DocId: "email_campaign::3ed76589-4063-49f6-a21e-9ca16981d102",
            _id: "3ed76589-4063-49f6-a21e-9ca16981d102",
            _type :"email_campaign",
            end_date: "",
            history: {
                created_by: "",
                created_on: "",
                update_on: "",
                updated_by: ""
            },
            librarys :[{id: 1, name : 'Lib 1'},{ id: 2, name: 'Lib 2'}],
            metrics : {
                first_email_sent: "",
                last_email_send: "",
                nbr_of_attachments_opened: 0,
                nbr_of_bounces: 0,
                nbr_of_email_opened: 0,
                nbr_of_emails: 0,
                nbr_of_unique_attachments_opened:0,
                nbr_of_unique_email_opened: 0
            },
            start_date: "",
            status: "Active",
            subject: "Test 1 Subject",
            summary: "",
            tags: ['one', 'two'],
            template_id: ""
        };

Answer 1

以下代码可能对您有所帮助。这为您提供了一个键值数组。您可以根据自己的用例对其进行调整。

const object1 = {
  DocId: "email_campaign::3ed76589-4063-49f6-a21e-9ca16981d102",
  _id: "3ed76589-4063-49f6-a21e-9ca16981d102",
  _type :"email_campaign",
  end_date: "",
  history: {
      created_by: "",
      created_on: "",
      update_on: "",
      updated_by: ""
  },
  librarys : [{id: 1, name : 'Lib 1', id: 2, name: 'Lib 2'}],
  metrics : {
      first_email_sent: "",
      last_email_send: "",
      nbr_of_attachments_opened: 0,
      nbr_of_bounces: 0,
      nbr_of_email_opened: 0,
      nbr_of_emails: 0,
      nbr_of_unique_attachments_opened:0,
      nbr_of_unique_email_opened: 0
  },
  start_date: "",
  status: "Active",
  subject: "Test 1 Subject",
  summary: "",
  tags: ['one', 'two'],
  template_id: ""
};

function getKeyValues(obj, path = [], result = []) {
  let value;
  let fieldPath;
  Object.keys(obj).forEach(key => {
    value = obj[key];
    const modifiedKey = isNaN(key) ? key : `[${key}]`;
    fieldPath = path.concat([modifiedKey]);
    if (value instanceof Object) {
      getKeyValues(value, fieldPath, result);
    }
    result.push({"key": fieldPath.join("."), value});
  });
  return result;
}

console.log(getKeyValues(object1));

Answer 2

Object.keys()?

const object1 = {
  DocId: "email_campaign::3ed76589-4063-49f6-a21e-9ca16981d102",
  _id: "3ed76589-4063-49f6-a21e-9ca16981d102",
  _type :"email_campaign",
  end_date: "",
  history: {
      created_by: "",
      created_on: "",
      update_on: "",
      updated_by: ""
  },
  librarys : [{id: 1, name : 'Lib 1', id: 2, name: 'Lib 2'}],
  metrics : {
      first_email_sent: "",
      last_email_send: "",
      nbr_of_attachments_opened: 0,
      nbr_of_bounces: 0,
      nbr_of_email_opened: 0,
      nbr_of_emails: 0,
      nbr_of_unique_attachments_opened:0,
      nbr_of_unique_email_opened: 0
  },
  start_date: "",
  status: "Active",
  subject: "Test 1 Subject",
  summary: "",
  tags: ['one', 'two'],
  template_id: ""
};

console.log(Object.keys(object1));