Confsion upon confusion

JavaScript
1

Tell us what’s happening:

I’m not getting the right result and have no idea where/what detail I’m missing
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(usersObj) {
 // Only change code below this line
let result = 0;
for(let user in countOnline) {
 if (obj[users].online === true) {
   result++; 
}  
}   return result;
 // Only change code above this line
}

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0.

Challenge: Iterate Through the Keys of an Object with a for…in Statement

Link to the challenge:

2

your function has a parameter with value of an object which you are never using

also you have for user in ...
but then you use the variable users

obj[users] has a double issue: obj is undefined, users is undefined

1 Like
3

This is why we needed to see your full code. countOnline is not an object you can iterate through! You need to iterate through your object of users.

4

Thanx for the input JeremyLT

5

Thanx for your input JeremyLT

6

Like JeremyLT said you need to loop over the correct object and not the function.

But just as an aside. Fun fact, a function is an object and can be iterated using for…in. I’m just not sure why you would ever do so.

function countOnline() {
  for (let user in countOnline) {
    console.log(user); // propOnFunction
    console.log(countOnline[user]); // test
  }
}

countOnline.propOnFunction = 'test';

countOnline();