Access to a certain part of JSON data with jQuery

Question

So i have this JSON:

{
  "id_u":"1",
  "nombre_usuario":"JESUS",
  "apellido_paterno_usuario":"DIAZ"
}

I just want to access to the fields names

id_u,_nombre_usuario,apellido_paterno_usuario

And then, create an array with that info.

How can i do that?

Thanks guys

did you try object["apellido_paterno_usuario"]

adeneo
– adeneo

2014-03-21 04:19:50 +00:00
Commented Mar 21, 2014 at 4:19 — adeneo
– adeneo, Commented Mar 21, 2014 at 4:19

Ankit Tyagi · Accepted Answer · 2014-03-21 05:01:56Z

2

Do this way :

var keyValuePair = {
  "id_u":"1",
  "nombre_usuario":"JESUS",
  "apellido_paterno_usuario":"DIAZ"
};

var arr =new Array();
for (key in keyValuePair){
arr.push(key); // for keys
// arr.push(keyValuePair[key]); // for values
}

edited Mar 21, 2014 at 5:01

answered Mar 21, 2014 at 4:21

Ankit Tyagi

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3 Comments

user3444889 Over a year ago

Thanks, it is working but i dont understand the code. What does it mean the "K in A" ?

Ankit Tyagi Over a year ago

We just fetching every key, we can write "key in a"

N K Over a year ago

@user3444889, for(key in keyValuePair) {}

Kiran · Accepted Answer · 2014-03-21 04:20:17Z

1

Use .each() to parse JSON.

Try this:

var keyArray = [];
var a = {
  "id_u":"1",
  "nombre_usuario":"JESUS",
  "apellido_paterno_usuario":"DIAZ"
};

$.each(a,function(i,v){
    keyArray.push(i); // i is json key and v is json value.
});
console.log(keyArray);

DEMO

answered Mar 21, 2014 at 4:20

Kiran

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Comments

N K · Accepted Answer · 2014-03-21 04:28:23Z

0

Object.keys(jsonObject) is enough.

answered Mar 21, 2014 at 4:28

N K

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