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                const _ = {};

/* ==========================================================================
  Iterates over a collection & for each element of the collection it applies
  a callback function on it. 

  NOTE: _.each doesn't have a return value, but rather simply runs the
  iterator function over each item in the input collection. The iterator should
  be called with the item, index/key and collection.

  Definition: _.forEach(collection, iterator)


  const weapons = ['Revolver','Knife','Lead Pipe','Candlestick'];

  _.each(weapons, weapon => {
  // => "Revolver"
  // => "Knife"
  // => "Lead Pipe"
  // => "Candlestick"

  Use your working _.each() implementation to iterate over ‘rooms’ array and 
  calls the iterator each time.
  Extra credit: Make it work for arrays & objects.

========================================================================== */

_.each = function(collection, iterator) {
  // TODO: Write the solution here
  for (const key in collection) {
    const value = collection[key];
    iterator(value, key, collection);

const rooms = [
  "Billiard Room",
  "Dining Room"

// We should see each room logged in order
console.log("We should see each room logged in order below:")
_.each(rooms, room => {