evenBetterUniqueValues = (arr, key) => {
  const transformedArray = arr.map((item) => ({[key]: item[key]}))
                              .map(item => JSON.stringify(item))

  const uniqueArray = Array.from(new Set(transformedArray)).map(item => JSON.parse(item))

  return uniqueArray.map((uniqueItem) => (
    arr.find(item => uniqueItem[key] === item[key]))
  )
}