get object by key, keep key with it

Question

I am filtering data that looks like below with json[username] for example.

data looks like:

{"albert":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}
{"sally":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}
{"petey":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}
{"gilbert":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}

so, for instance json[sally] brings in sally data but omits her name (the key) giving me the below:

{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}

I need to bring in/keep the name key as well. i.e. the whole line:

{"sally":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}

If I hardcode it: user = "{" + username + ":"+json[username]+"}"; the object stops working: consoles as just {sally:[object Object]}. Anyway to achieve this?

If json[username] works then json is an object and not JSON -> What is the difference between JSON and Object Literal Notation? — Andreas
– Andreas, Commented Mar 7, 2020 at 17:29
Your output makes no sense, key: value on its own doesn't mean anything (it's a label). Why not create an object that also includes the key, for example? — jonrsharpe
– jonrsharpe, Commented Mar 7, 2020 at 17:30
Please add a minimal reproducible example that shows what you've tried so far and the actual (but stripped down) input and output format. Right now this question doesn't make much sense (imho). — Andreas
– Andreas, Commented Mar 7, 2020 at 17:32

Anurodh Singh · Accepted Answer · 2020-03-07 18:35:59Z

1

You can loop over the json and try it in this way,

for(let item in json){
    let data = {};
    data[item] = json[item];
    console.log(data);
}

answered Mar 7, 2020 at 18:35

Anurodh Singh

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Comments

Ayush Mandowara · Accepted Answer · 2020-03-07 17:44:59Z

-1

You can simply loop over the data like so:

for(var key in data){
    console.log(key);
    console.log(data[key]);
}

here, key will store the name sally, while data stored in sally is extracted via data[key].

You can also refer this post: How to loop through key/value object in Javascript?

answered Mar 7, 2020 at 17:44

Ayush Mandowara

4985 silver badges18 bronze badges

5 Comments

Lieutenant Dan Over a year ago

That is a good way to get the key; but data still console logs as {"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}

Lieutenant Dan Over a year ago

need: {"sally":{"userCData":[{"id":"slz1","checked":"false"},{"id":"slz2",...................]}}

Lieutenant Dan Over a year ago

I just tried to hardcode it and the object stops reporting: userA = "{" + username + ":"+json[username]+"}";

Ayush Mandowara Over a year ago

try: console.dir(data); - where data is the json data.

Ayush Mandowara Over a year ago

what about: userA = ' "{" + username + ":"+json[username]+"}" '

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