Created
September 28, 2011 13:49
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| foo # NameError: undefined local variable or method `foo' for main:Object | |
| foo = "bar" unless defined?(foo) | |
| foo # => nil |
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Yep, it's ok in the case you want scope wide memoization on that variable. But you are right we are diverging the purpose of the gist/comments was just to expose corner case in ruby language.