JavaScript: Firebase Realtime Database write Data but Variable in dictionary is not recognized

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I want to write my Data in a Firebase Realtime Database, but the problem is that the first value of the child should have the value of a variable but the variable is not recognized at variable.
It should look like this:
In the child it displays two variables

so I tried:

let id = chatid + "::::" + username;
let input = document.getElementById('input').value;
 
firebase.database().ref('chat/'+ chatid + "/chat").set({
   id: input
})

but the id variable is not recognized as a variable, thats why in the firebase console it looks like this:Instead of the value variable, the name of variable "id" is displayed to me

How to fix that?

59 thoughts on “JavaScript: Firebase Realtime Database write Data but Variable in dictionary is not recognized”

  1. You need to do as follows:

    let id = chatid + "::::" + username;
let input = document.getElementById('input').value;

firebase
    .database()
    .ref('chat/' + chatid + '/chat' + id)
    .set(input);

    or as follows:

      firebase
    .database()
    .ref('chat/' + chatid + '/chat')
    .set({
      [id]: input,
    });

    More detail on the square brackets approach in this SO answer.

    Reply

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