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baldwindavid/gist:100746

Created April 23, 2009 20:38
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gistfile1.txt
irb(main):001:0> thing
NameError: undefined local variable or method `thing' for main:Object
from (irb):1
irb(main):002:0> defined? thing
=> nil
irb(main):003:0> thing = thing
=> nil
irb(main):004:0> thing
=> nil
irb(main):005:0> defined? thing
=> "local-variable"
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