Using Keys & Values from Object as Values for Another

Question

I have this data in var output (this is just an excerpt):

{
  'us-tx-021': 5,
  'us-tx-029': 3,
  'us-tx-031': 1,
}

I need to convert it to something like this:

[
  {
    'hc-key': "us-tx-021",
    'value': 5
  },
  {
    'hc-key': "us-tx-029",
    'value': 3
  },
  {
    'hc-key': "us-tx-031",
    'value': 1
  }
]

I don’t know how to use the keys & values from one object as values for another object. Can anyone help me?

Voting to close this as off topic (#3). Please show what you've tried and where you're having problems before asking for people to do your job for you. — zzzzBov
– zzzzBov, Commented Jul 7, 2015 at 21:38

Claudio Redi · Accepted Answer · 2015-07-07 22:12:26Z

1

You can use a for loop to get all keys from original json

var json = '{ "us-tx-0212": 5, "us-tx-029": 3, "us-tx-031": 1}';
var obj = JSON.parse(json);

var translatedObj = [];
for (var key in obj) {
    if (obj.hasOwnProperty(key)) {
        translatedObj.push({'key': key, 'value': obj[key] });
    }
}

edited Jul 7, 2015 at 22:12

answered Jul 7, 2015 at 21:33

Claudio Redi

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5 Comments

Ram Over a year ago

{ 'us-tx-021': 5, 'us-tx-029': 3, 'us-tx-031': 1} is not json, right?

Claudio Redi Over a year ago

@Vohuman: it's a valid json. Unfortunately I don't get what you're trying to say

Ram Over a year ago

It seems you don't know what JSON is. JSON is a string. { 'us-tx-021': 5, 'us-tx-029': 3, 'us-tx-031': 1} is a JavaScript object.

Claudio Redi Over a year ago

@Vohuman: I see where you're trying to get. Fixed my example to avoid confusions

Ram Over a year ago

Yes, that makes more sense. But OP didn't mention he/she is using JSON. Also that string is still not a valid JSON :) I just meant to say that using a different variable name is better than json for an object.

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