Ruby

Comprehensive Challenges

def make_it_ordinal(numbers)
 # Write your code here
end


def make_it_ordinal(numbers)
  numbers.map{|number| ordinalize(number)}
end

def ordinal(number)
  if (11..13).include?(number % 100)
    "th"
  else
    case number % 10
      when 1; "st"
      when 2; "nd"
      when 3; "rd"
      else    "th"
    end
  end
end

def ordinalize(number)
  "#{number}#{ordinal(number)}"
end
