CODEWITHSUNDEEP
javascriptarrays
Diogo Almeida
Diogo Almeida

Reputation: 113

get value of object inside array inside object with javascript

If I have this:

{
  "data": [{
    "id": "4831",
    "name": "Rui Vasco Martins",
    "nickname": "rvgmartins",
    "money_start": "10200",
    "balance": "8000"
  }]
}

How do I get the value of data->id, data->name, etc ?

Upvotes: 4

Views: 26095

Answers (5)

AKSHAY G
AKSHAY G

Reputation: 41

object.data[0].id => for id

object.data[0].name => for name

Upvotes: 0

Lajos Arpad
Lajos Arpad

Reputation: 76444

First, let's understand your problem. Notes to be taken:

  • you have a JSON, which is inside of a variable, I will assume that this variable is foo
  • there is no such thing as data->id in Javascript. If you have an object called data and it has a member called id, then you reference it as data.id
  • name is inside an array. An element of an array is referenced by an index, which starts from 0, so, your array noted as data is an array having a single element, which is the 0th element

So, you can get the id with foo.data[0].id and you can get the name as foo.data[0].name. However, as per se, nothing forces your array to have exactly one element. If there are more elements, you need to be able to decide somehow which element's id and name you are interested in. Also, your array is not forced to have elements at all.

Whenever you see such a JSON, arrays are enclosed inside [] brackets and objects are enclosed inside {} brackets.

Upvotes: 0

Data
Data

Reputation: 1357

Your object contains an array, so you need to use the correct indices to further delve into the object; your id and name happen to be in the first array, so we use obj.data[0].

var obj = {"data":[{"id":"4831","name":"Rui Vasco Martins","nickname":"rvgmartins","money_start":"10200","balance":"8000","profit":"5010","nreload":"1","deal_id":"4813","created_at":"2015-05-27 12:54:33","updated_at":"2015-07-21 22:31:47"}],"status":200,"config":{"method":"GET","transformRequest":[null],"transformResponse":[null],"url":"services/dashboard","headers":{"Accept":"application/json, text/pla`in, */*"}},"statusText":"OK"}

You can use either dot or square bracket notation, to further identify the object property, here's dot notation:

var data_id = obj.data[0].id; // "4831"
var data_name = obj.data[0].name; // "Rui Vasco Martins"

Here's square-bracket notation:

var data_id = obj.data[0]['id']; // "4831"
var data_name = obj.data[0]['name']; // "Rui Vasco Martins"

Upvotes: 4

Moishe Lipsker
Moishe Lipsker

Reputation: 3034

As within data there is an array, you can do: 

var myJson = {
    "data": [{
        "id": "4831",
            "name": "Rui Vasco Martins",
            "nickname": "rvgmartins",
            "money_start": "10200",
            "balance": "8000",
            "profit": "5010",
            "nreload": "1",
            "deal_id": "4813",
            "created_at": "2015-05-27 12:54:33",
            "updated_at": "2015-07-21 22:31:47"
    }],
        "status": 200,
        "config": {
        "method": "GET",
            "transformRequest": [null],
            "transformResponse": [null],
            "url": "services/dashboard",
            "headers": {
            "Accept": "application/json, text/plain, */*"
        }
    },
        "statusText": "OK"
}
document.write('id: ' + myJson.data[0].id + '</br>name: ' + myJson.data[0].name);

Upvotes: 0

Bene
Bene

Reputation: 1905

Data is multiple. It means it is an array of objects. There's no such things as data->id, only data[ n ]->id. In that case, you might want all possible IDs and you can do it with a traditionnal for loop, or other.

var i =0;
var total = object.data.length;
var ids = [];
for(; i < total; i++) {
   ids.push( data[ i ].id );
}
console.log(ids);

If you are SURE there's only 1 data entry and will always be, you can be straight forward and go object.data[ 0 ].id as well!

Please note that "object" is the variable containing the JSON :)

And for next time, here's a little hint : http://jsonlint.com/

Hope that helps!

Upvotes: 4

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