[javascript] sort json object in javascript

For example with have this code:

var json = {
    "user1" : {
        "id" : 3
    },
    "user2" : {
        "id" : 6
    },
    "user3" : {
        "id" : 1
    }
}

How can I sort this json to be like this -

var json = {
    "user3" : {
        "id" : 1
    },
    "user1" : {
        "id" : 3
    },
    "user2" : {
        "id" : 6
    }
}

I sorted the users with the IDs..
I don't know how to do this in javascript..

if(JSON.stringify(Object.keys(pcOrGroup).sort()) === JSON.stringify(Object.keys(orGroup)).sort())
{
    return true;
}

In some ways, your question seems very legitimate, but I still might label it an XY problem. I'm guessing the end result is that you want to display the sorted values in some way? As Bergi said in the comments, you can never quite rely on Javascript objects ( {i_am: "an_object"} ) to show their properties in any particular order.

For the displaying order, I might suggest you take each key of the object (ie, i_am) and sort them into an ordered array. Then, use that array when retrieving elements of your object to display. Pseudocode:

var keys = [...]
var sortedKeys = [...]
for (var i = 0; i < sortedKeys.length; i++) {
  var key = sortedKeys[i];
  addObjectToTable(json[key]);
}

Here is a simple snippet that sorts a javascript representation of a Json.

function isObject(v) {
    return '[object Object]' === Object.prototype.toString.call(v);
};

JSON.sort = function(o) {
if (Array.isArray(o)) {
        return o.sort().map(JSON.sort);
    } else if (isObject(o)) {
        return Object
            .keys(o)
        .sort()
            .reduce(function(a, k) {
                a[k] = JSON.sort(o[k]);

                return a;
            }, {});
    }

    return o;
}

It can be used as follows:

JSON.sort({
    c: {
        c3: null,
        c1: undefined,
        c2: [3, 2, 1, 0],
    },
    a: 0,
    b: 'Fun'
});

That will output:

{
  a: 0,
  b: 'Fun',
  c: {
    c2: [3, 2, 1, 0],
    c3: null
  }
}