Find the length of object values which is not empty

I have an object, for example ,

let obj = {
  name: '',
  age: 16, 
  address: '', 
  city: '', 
  pin: 4564
}

I want the length of element which have a value rather than 0 or undefined or ”.
my obj has 2 elements which have value( age and pin) soI want the length of obj as 2

>Solution :

using Object.values and filter with Boolean on each element on it maybe

let obj = {
  name: '',
  age: 16, 
  address: '', 
  city: '', 
  pin: 4564
}

console.log(Object.values(obj).filter(Boolean).length)