Ruby

Comprehensive Challenges

def newsletter_list(department_newsletter_list, department_names_list)
  # Write your code here
end


def newsletter_list(department_newsletter_list, department_names_list)
  list = []
  department_names_list.each do |department_name|
    if department_newsletter_list.has_key? department_name
      list << department_newsletter_list[department_name.to_sym]
    end
  end

  list.empty? ? false : list.flatten.sort
end
