classarray.rb

class Array
  def pad!(min_size, value = nil)
    if self.count >= min_size
      return self
    else
      size_is = min_size - self.count
      count = 0
      while count < size_is
        self << value
        count += 1
      end 
      return self
    end  
  end
  
  def pad(min_size, value = nil)
    if self.count >= min_size
      return new_array = self.clone
    else
      new_array = self.clone
      size_is = min_size - self.count
      count = 0
      while count < size_is
        new_array << value
        count += 1
      end
    return new_array
    end
  end
end

[1,2,3].pad!(5, "apple")