Codecademy: "Sorting With Control Flow"

#sample solution


def alphabetize(arr, rev=false)
  if rev
    arr.sort! {|item1, item2| item2 <=> item1}
  else
    arr.sort! {|item1, item2| item1 <=> item2}
  end
end

puts alphabetize(["b","a","d","c"])
puts #space
puts alphabetize(["b","a","d","c"],true)