Anthony Lai ajlai

ajlai / self_unless.rb

Created December 13, 2012 00:14 — forked from anonymous/self_unless.rb

Making Ruby || / && chaining for non nil/false values nicer

	class Object
	# Usage:
	# maybe_zero.self_unless(&:zero?) \|\| zero_fallback
	# # => either maybe_zero or zero_fallback (if maybe_zero was zero)
	def self_unless
	self unless yield(self)
	end

	# Usage:
	# maybe_present.self_if(&:present?)