I'm trying to count total `not null` fields out of `total` fields in my angularjs object, then I want to calculate the percentage.

eg:

in my object contain 10 fields.two fields have some values(others `null`).

`Completed = (not null fields/total fields)*100`
`= (4/11)*100 = 36.36%`

**my controller**

```
myApp.controller('PController', function ($scope,localStorageService) {

$scope.user = localStorageService.get("user");

console.log(Object.keys($scope.user).length);
});

```

now i can get total fields.but how can i count `not null` fields and callculate percentage?

**$scope.user object is like below** 

```
{
    "user_id": "205",
    "first_name": null,
    "last_name": null,
    "email": "at@yuib.com",
    "address": null,
    "mobile": null,
    "phone": null,
    "profile_img": null,
    "gender": null,
    "registered": "1",
    "addresses": 0
}

```