Basic Javascript: Profile Lookup Challenge solution not working

[stonecrusher]

Lookup Challenge

"Get a hint" on freecodecamp is down (error 500 - internal server error), so I found this github page.

Unfortunately the solution given does not work / is not accepted by fcc, but this does

function lookUpProfile(firstName, prop){
// Only change code below this line
  for (var i=0; i < contacts.length; i++) {
    if (contacts[i].firstName === firstName) {
      if (contacts[i].hasOwnProperty(prop)) {
        return contacts[i][prop];
      }
      else {
        return "No such property";
      }
    }
  }
  return "No such contact";
// Only change code above this line
}

I think .some() is not known to beginners at that point.