Basic Data Structures - Iterate Through the Keys of an Object with a for...in Statement

JavaScript
1

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

Your code so far

const users = {
  Alan: {
    online: false
  },
  Jeff: {
    online: true
  },
  Sarah: {
    online: false
  }
}

function countOnline(allUsers) {
  // Only change code below this line
  for(const indivUser in allUsers){
    let onlineUsers = 0;
    if(allUsers[indivUser] == true){
      onlineUsers++;
    }
    return onlineUsers;
  }
  // Only change code above this line
}

console.log(countOnline(users));

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Challenge: Basic Data Structures - Iterate Through the Keys of an Object with a for…in Statement

Link to the challenge:

2

You’ve got several issues. I’ll give you a hint about one of them.

Remember, a return statement immediately stops the function and returns a value. Since you have a return statement at the end of your for..in loop, how many times is that loop going to execute, regardless of how many items are in the allUsers object?

3

thank you i did it haha

1 Like
4

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