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psychocandy/autovivify_hash.rb

Created February 17, 2013 13:57
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Autovivification which allows you to nest away and save you a lot of nil? checks.
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autovivify_hash.rb
hash = Hash.new { |h,k| h[k] = Hash.new(&h.default_proc) }
hash[:foo]["bar"][:baz] = 13
# => {:foo=>{"bar"=>{:baz=>13}}}
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