knzai · January 13, 2009 22:49
diff --git a/Problems with Method#to_proc that get passed an array b/Problems with Method#to_proc that get passed an array
 def foo(value)
  "#{value}foo"
 end
 [1,2].map &method(:foo)
 #=> ["1foo", "2foo"]

 def foo(value)
  "#{value[0]}foo"
 end
 [[1,2],[3,4]].map &method(:foo)
 # ArgumentError: wrong number of arguments (2 for 1)
 #   from (irb):13:in `foo'
 #   from (irb):13:in `to_proc'
 #   from (irb):14:in `map'
 #   from (irb):14
 #   from :0
	def foo(value)
	"#{value}foo"
	end
	[1,2].map &method(:foo)
	#=> ["1foo", "2foo"]

	def foo(value)
	"#{value[0]}foo"
	end
	[[1,2],[3,4]].map &method(:foo)
	# ArgumentError: wrong number of arguments (2 for 1)
	# from (irb):13:in `foo'
	# from (irb):13:in `to_proc'
	# from (irb):14:in `map'
	# from (irb):14
	# from :0