There is a typo linked to the “Get a hint” button on the above lesson. It sends you to:
https://guide.freecodecamp.org/certifications/javascript-algorithms-and-data-structures/basic-data-structures/-iterate-through-the-keys-of-an-object-with-a-for---in-statement
when it should send you to:
https://guide.freecodecamp.org/certifications/javascript-algorithms-and-data-structures/basic-data-structures/-iterate-through-the-keys-of-an-object-with-a-for...in-statement
where the for…in is dots not dashes!
Thanks!