Why does this code not loop through the object correctly

[harshilavlani]

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

function countOnline(usersObj) {
let count = 0;
// Only change code below this line
for(let user in usersObj) {
  if(user["online"] == true)
    count++;
}
  return count;

// Only change code above this line
}

  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15

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

Link to the challenge:

freeCodeCamp.org

[michaelprimo]

Howdy!

Check carefully the if inside your function.

What user[“online”] actually is? What value are you accessing? Is that the right answer or you should double check that bit of code?

[harshilavlani]

isn’t it accessing the part of the object that checks if the user is online or not?

[lasjorg]

Check the MDN for…in docs and look at the examples.

If you think of it as for (const property in object) it might also help.

Example

const movies = {
  AirPlane: {
    watched: true,
  },
  Spaceballs: {
    watched: true,
  },
  "Zack Snyder's Justice League": {
    watched: false,
    note: "tl;dw"
  },
};

console.log(movies['AirPlane']); // { watched: true }

for (const movie in movies) {
  console.log(movie); // AirPlane, Spaceballs, "Zack Snyder's Justice League
  console.log(movies[movie]); // { watched: true }, { watched: true }, { watched: false, note: "tl;dw" }
}

[harshilavlani]

On a slightly separate note, why can I do this

if(usersObj[user].online === true)

and not this

if(usersObj.user.online === true)

[lasjorg]

user is a variable. Revisit this challenge.