Iterate Through the Keys of an Object with a for...in

Tell us what’s happening:
I am doing right But It Says 0 When Compile

Your code so far


let users = {
  Alan: {
    age: 27,
    online: false
  },
  Jeff: {
    age: 32,
    online: true
  },
  Sarah: {
    age: 48,
    online: false
  },
  Ryan: {
    age: 19,
    online: true
  }
};

function countOnline(obj) {
  // change code below this line
  let count = 0
  for(let user in obj){
   if(user["online"]){
     count = count + 1
   }
  }
  return count
  // change code above this line
}

console.log(countOnline(users));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3886.0 Safari/537.36 Edg/78.0.256.0.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-data-structures/-iterate-through-the-keys-of-an-object-with-a-for---in-statement

you are not doing right, user is a string, it can’t have a property
do you remember how to access nested objects?

Thank you for helping. I fixed it