如何使用 JavaScript 读取/访问多维对象

Question

我正在开发一个 Telegram 机器人，需要确定谁是组中的管理员

已经使用 JavaScript 开发了一个 Google Web App 并调用了以下方法 获取聊天管理员 使用此方法获取聊天中的管理员列表。成功时，返回一个包含所有聊天管理员信息的 ChatMember 对象数组

此方法返回以下内容： [20-03-14 17:14:23:403 AEDT]

{"ok":true,
 "result":
[{"user":{"id":810784352,"is_bot":false,"first_name":"Rafael","last_name":"Vasconcelos"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},
 {"user":{"id":1021450393,"is_bot":false,"first_name":"Mauro","last_name":"Ramires"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},
 {"user":{"id":998081853,"is_bot":false,"first_name":"Filipe","last_name":"Lima"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},
 {"user":{"id":962548471,"is_bot":false,"first_name":"Trajano","last_name":"Roberto","username":"TrajanoRoberto","language_code":"en"},"status":"creator"},
 {"user":{"id":307271095,"is_bot":false,"first_name":"Leandro","last_name":"Silva","username":"Leandro_CRF"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}
]
}

问题： 我正在努力寻找正确的 JavaScript 语法来阅读： id、名字和姓氏 对于方法返回的响应 获取ChatAdministrators

提前感谢您的帮助。

特拉哈诺·罗伯托

Answer 1

假设上面的输出对象在变量obj中，你可以使用下面的sn-p来记录每个用户的详细信息：

 var results = obj.result;  
  if (results.length > 0) {
    for (var r in results) {
      var user = results[r].user;
      Logger.log([user.id, user.first_name, user.last_name])
    }
  }

为了理解这一点，如果你解析对象（在tool like this 中），所有用户都在result 中的一个数组中。并且每个用户的详细信息都在user。

Answer 2

您可以在map() 函数的帮助下找到id、first_name 和last_name，如下所示。

var myArray = {"ok":true,"result":[{"user":{"id":810784352,"is_bot":false,"first_name":"Rafael","last_name":"Vasconcelos"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},{"user":{"id":1021450393,"is_bot":false,"first_name":"Mauro","last_name":"Ramires"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},{"user":{"id":998081853,"is_bot":false,"first_name":"Filipe","last_name":"Lima"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false},{"user":{"id":962548471,"is_bot":false,"first_name":"Trajano","last_name":"Roberto","username":"TrajanoRoberto","language_code":"en"},"status":"creator"},{"user":{"id":307271095,"is_bot":false,"first_name":"Leandro","last_name":"Silva","username":"Leandro_CRF"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}]}

JSON.parse(JSON.stringify([myArray])).map(function(v,i) {
  v.result.map(function(v2, i2){
    console.log('ID:'+v2.user.id+' ==> First Name:'+v2.user.first_name+' ==> Last Name:'+v2.user.last_name)
  })
})

Answer 3

您似乎从请求中获得了 JSON 响应，并且它是一个对象。因此，要获得id、first_name、last_name，您必须检查response。

假设您的请求响应是-

let response = {"ok":true, "result": [{"user":{"id":810784352,"is_bot":false,"first_name":"Rafael","last_name":"Vasconcelos"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":1021450393,"is_bot":false,"first_name":"Mauro","last_name":"Ramires"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":998081853,"is_bot":false,"first_name":"Filipe","last_name":"Lima"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":962548471,"is_bot":false,"first_name":"Trajano","last_name":"Roberto","username":"TrajanoRoberto","language_code":"en"},"status":"creator"}, {"user":{"id":307271095,"is_bot":false,"first_name":"Leandro","last_name":"Silva","username":"Leandro_CRF"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}]};

我不知道，但如果它是一个 JSON 字符串，然后解析它，这样程序就不会失败。

if (typeof response === 'string') {
    response = JSON.parse(response);
}

这里我检查响应是否为字符串，然后将字符串解析为 JSON。

最后，我必须遍历响应，因为所需的信息存储在 result 数组的 user 对象中。

response.result.map(result => {
    console.log(result.user.id, result.user.first_name, result.user.last_name);
});

我只是控制价值观。你可以为所欲为。

let response = {"ok":true, "result": [{"user":{"id":810784352,"is_bot":false,"first_name":"Rafael","last_name":"Vasconcelos"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":1021450393,"is_bot":false,"first_name":"Mauro","last_name":"Ramires"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":998081853,"is_bot":false,"first_name":"Filipe","last_name":"Lima"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}, {"user":{"id":962548471,"is_bot":false,"first_name":"Trajano","last_name":"Roberto","username":"TrajanoRoberto","language_code":"en"},"status":"creator"}, {"user":{"id":307271095,"is_bot":false,"first_name":"Leandro","last_name":"Silva","username":"Leandro_CRF"},"status":"administrator","can_be_edited":false,"can_change_info":true,"can_delete_messages":true,"can_invite_users":true,"can_restrict_members":true,"can_pin_messages":true,"can_promote_members":false}]};

if (typeof response === 'string') {
	response = JSON.parse(response);
}

response.result.map(result => {
	console.log(`id: ${result.user.id}`, `first_name: ${result.user.first_name}`, `last_name: ${result.user.last_name}`);
});