Ruby Const WAT

wat.md

MRI

1.9.3-p194 :011 > [1, 2, 3].each {|X| puts X }
SyntaxError: (irb):11: formal argument cannot be a constant
[1, 2, 3].each {|X| puts X }
                  ^
	from /Users/ej/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in `<main>'

Makes perfect sense

1.9.3-p194 :012 > for X in [1, 2, 3]; puts X; end
1
(irb):12: warning: already initialized constant X
2
(irb):12: warning: already initialized constant X
3
 => [1, 2, 3] 

WAT