joelibaceta · July 9, 2019 22:34
diff --git a/flatten.rb b/flatten.rb
 def flatten(input)
  if input.any? { |n| n.is_a? Array }
    return input.reduce([]) do |b, x| 
      x.is_a?(Array) ? b + flatten(x) : b + [x]
    end
  else
    return input
  end
 end

 # p flatten([4,5, [6, 7, [8, 9]]])
 # [4, 5, 6, 7, 8, 9]
	def flatten(input)
	if input.any? { \|n\| n.is_a? Array }
	return input.reduce([]) do \|b, x\|
	x.is_a?(Array) ? b + flatten(x) : b + [x]
	end
	else
	return input
	end
	end

	# p flatten([4,5, [6, 7, [8, 9]]])
	# [4, 5, 6, 7, 8, 9]