Using push() to create a JSON object with the name being a variable?

Question

I'm trying to create a JSON object which looks something like this:

{
    "scores": [{
        "879212387": {
            "elo": 125
        }, {
        "123768901": {
            "elo": 173
        }
    }]
}

(where the numbers under json.scores are a variable named sid64)

but instead I just get something which looks like this

{
    "scores": [{
        "sid64": {
            "elo": 125
        }, {
        "sid64": {
            "elo": 173
        }
    }]
}

How can I dictate that I'm trying to make the object name a variable and not a string?

Current code:

obj.scores.push({
    sid64:
        {
            elo
        }
    })

Possible duplicate of [How to use a variable for a key in a JavaScript object literal?](https://stackoverflow.com/questions/2274242/how-to-use-a-variable-for-a-key-in-a-javascript-object-literal) — Neil Locketz, Sep 09 '18 at 18:50

score 2 · Answer 1 · answered Sep 09 '18 at 18:47

2

You probably need to use objects computed property name

obj.scores.push({
    [sid64]://rest of the code

answered Sep 09 '18 at 18:47

brk

Neil Locketz · Accepted Answer · 2018-09-10T11:50:25.613

1

Use the computed property syntax:

obj.scores.push({
    [sid64]:
    {
        elo
    }
})

It indicates that you want to use the value of the expression inside [...] as the key, not the string sid64.

edited Sep 10 '18 at 11:50

answered Sep 09 '18 at 18:47

Neil Locketz

2 Answers2