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const refrigerator = {
  'milk': 1,
  'eggs': 12,
};

for (const food in refrigerator) {
  console.log(food, refrigerator[food]);
}

This code logs milk 1 and eggs 12, with each key-value pair on its own line.

We defined the variable food in the loop head and this variable was set to each of the object's keys on each iteration, resulting in each food's name being printed to the console.
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