Get Length Of Json object

Question

I have json object which is returned from php file, the json values are as follows

    {
  "0": {
    "id": "35",
    "name": "first name",
    "date": "2014-03-03",
    "age": "25"
  },
  "1": {
    "id": "36",
    "name": "name",
    "date": "0000-00-00",
    "age": "25"
  },
  "2": {
    "id": "37",
    "name": "myname",
    "date": "0000-00-00",
    "age": "25"
  },
  "average_age": 25,
  "count": 3
}

How do I get the count of values other than average_age and count that is for the given json object i want to get 3 as length in jQuery

Answer 1

I have got the answer

Object.keys(result).length // returns 5

UPDATE

From the comment this does not work on IE 7 and 8