ocp0b.js

function announce(collection) {
  console.log(collection.description);
  
  collection.items.forEach(function(element) {
    console.log(element);
  });
}

var favoriteCities = {
  items: {
    "Denmark": "Copenhagen",
    "Uganda": "Kampala",
    "Uraguay": "Montevideo"
  },
  
  description: "My favorite cities around the world:",
};

announce(favoriteCities);
  // TypeError: collection.items.forEach is not a function