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dlt/gist:1421359

Created December 2, 2011 01:56
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Why is 'y' defined?
Raw
gistfile1.txt
ruby-1.9.2-p180 :001 > if 1 then x = 1 else y = 0 end
=> 1
ruby-1.9.2-p180 :002 > y
=> nil
ruby-1.9.2-p180 :003 > x
=> 1
ruby-1.9.2-p180 :004 > z
NameError: undefined local variable or method `z' for main:Object
from (irb):4
from /home/dlt/.rvm/rubies/ruby-1.9.2-p180/bin/irb:16:in `<main>'
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