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mmaa/gist:4234821

Created December 7, 2012 17:21
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gistfile1.rb
[1] pry(main)> CONSTANT = 1
=> 1
[2] pry(main)> CONSTANT = 2
(pry):2: warning: already initialized constant CONSTANT
=> 2
[3] pry(main)> CONSTANT.freeze
=> 2
[4] pry(main)> CONSTANT = 3
(pry):4: warning: already initialized constant CONSTANT
=> 3
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