Pattern for handling array vs single

discrete_array_loop.rb

# value arg could be Array of objects, or single object
def print_this(value)
  print = ''
  (value.is_a?(Array) ? value : [value]).each do |v|
    print += v
  end
  puts print
end

# eg
print_this('hello') -> 'hello'
print_this(['hello ', 'how ', 'are ', 'you']) -> 'hello how are you'