How to use variables in the first value of a JSON Object

Question

In short I have this JSON configuration that looks like this:

{
    "Users" : {
        "182723618273612" : 15,
        "AddedUser" : 1
    }
}

I created the field through a JavaScript function, but Im trying to figure out how I can change the name of "AddedUser". I do NOT want t o change the value (1), I just want to change "AddedUser" to be another ID.

It should look like this:

{
    "Users" : {
        "182723618273612" : 15,
        "693582876127862" : 1
    }
}

You basically add a new key `693582876127862` with value `1` and remove the key `AddedUser`. — deceze, Feb 12 '21 at 14:34
Does this answer your question? [JavaScript: Object Rename Key](https://stackoverflow.com/questions/4647817/javascript-object-rename-key) — nip, Feb 12 '21 at 14:35
What's the context? If the JSON shouldn't have a field `"AddedUser"`, why did you create it this way? — Felix Kling, Feb 12 '21 at 14:36

score 1 · Answer 1 · answered Feb 12 '21 at 14:42

1

You can do the followig:

const users = JSON.parse(json);

const newKey = "693582876127862";

users[newKey] = users['AddedUser']; // with this, you can use variable as a key

delete users['AddedUser'];

JSON.stringify(users);

answered Feb 12 '21 at 14:42

mehowthe

761
6
14

1

This almost works, except `users` would be an object with a `users` property. --- Try `const { Users: users } = JSON.parse(json);` instead? – evolutionxbox Feb 12 '21 at 14:44

How to use variables in the first value of a JSON Object

1 Answers1