Parsing firebase object javascript

Question

It might be duplicate, sorry for that but I couldn't understand (New to firebase and JS).

I have a snapshot from firebase, but I couldn't understand how to parse that snapshot object.

Here is my code:

var obj = snapshot.val();
console.log(JSON.stringify(obj));

It outputs following:

{"-KpxDFnJEt2xlD21lzyh":{"chatid":"6qKi8xO5vxdrcKFd5wqUNUkTupg2PNQjC87cFNcKxYkDoYMdhH95LCK2"}}

I want to get this -KpxDFnJEt2xlD21lzyh value in a separate variable and chatid into separate variable, but not be able to.

What should I do?

SLePort · Accepted Answer · 2017-07-26 06:00:30Z

1

To get the key name and its chatid value:

var json = {
  "-KpxDFnJEt2xlD21lzyh": {
    "chatid": "6qKi8xO5vxdrcKFd5wqUNUkTupg2PNQjC87cFNcKxYkDoYMdhH95LCK2"
  }
}
for (key in json) {
  if (!json.hasOwnProperty(key)) continue;
  console.log(key);
  console.log(json[key].chatid);
}

edited Jul 26, 2017 at 6:00

answered Jul 26, 2017 at 5:53

SLePort

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Comments

Charlie Fish · Accepted Answer · 2017-07-26 05:50:49Z

0

Something like the following?

for (var i = 0; i < Object.keys(obj); i++) {
    console.log(Object.keys(obj)[i]); // -KpxDFnJEt2xlD21lzyh
    console.log(obj[Object.keys(obj)[i]]["chatid"]); // 6qKi8xO5vxdrcKFd5wqUNUkTupg2PNQjC87cFNcKxYkDoYMdhH95LCK2
}

That will loop through the JSON object getting each key, printing the key and chat id.

answered Jul 26, 2017 at 5:50

Charlie Fish

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Comments

Hassan Imam · Accepted Answer · 2017-07-26 06:14:50Z

0

You can access keys in an object Object.Keys, it will return an array. At index 0 you will have your first key. Similarly, to access value, you can use Object.Values, it will return an array.

var response = {"-KpxDFnJEt2xlD21lzyh":{"chatid":"6qKi8xO5vxdrcKFd5wqUNUkTupg2PNQjC87cFNcKxYkDoYMdhH95LCK2"}};

var id = Object.keys(response);
var chats = Object.values(response);

console.log(id[0]);
console.log(chats[0]['chatid']);

edited Jul 26, 2017 at 6:14

answered Jul 26, 2017 at 5:50

Hassan Imam

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