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

JavaScript
1

what is the mistake ,running tests error

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

function countOnline(usersObj) {
// Only change code below this line
let count=0;
for (let usersObj in users) {
if(users[usersObj][‘online’]) {
count++;
}
}
return count;
// Only change code above this line
}
console.log(countOnline(users));

2

Please post a link to the challenge website.

3

The syntax of your loop is wrong.

let object = {1: "a", 2: "b"};
for (let key in object) {
  console.log(object[key]); 
}
output:
a
b

You also try to declare usersObj as the variable in your loop, but it’s already the object you pass into the function. Instead you use the global object users…

5

Nice explanation, I typed about the same a minute later lol.

6

The more different explanations, the higher the chance that it will be understood - no need to delete it :wink:

7
8

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