wojtekmach · August 10, 2011 14:58
diff --git a/gistfile1.rb b/gistfile1.rb
 # factorial
 (1..5).inject(&:*) # => 120

 # reverse
 (1..5).inject([]) { |val, v| [v] + val } # => [5, 4, 3, 2, 1]

 # fibonacci numbers
 (1...5 - 1).inject([0, 1]) { |val, v| val << val[-2] + val[-1] } # => [0, 1, 1, 2, 3]
	# factorial
	(1..5).inject(&:*) # => 120

	# reverse
	(1..5).inject([]) { \|val, v\| [v] + val } # => [5, 4, 3, 2, 1]

	# fibonacci numbers
	(1...5 - 1).inject([0, 1]) { \|val, v\| val << val[-2] + val[-1] } # => [0, 1, 1, 2, 3]