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levity/infinite_hash.rb

Created December 14, 2010 21:49
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Infinite Hash
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infinite_hash.rb
# O.o
# http://opensoul.org/blog/archives/2010/12/12/the-ruby-infinite-hash/
>> hash = Hash.new { |h, k| h[k] = Hash.new(&h.default_proc) }
=> {}
>> hash['a'] = 1
=> 1
>> hash['a']
=> 1
>> hash['b']
=> {}
>> hash['b']['c']['d']
=> {}
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