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graywh/gist:3439466

Created August 23, 2012 17:55
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Auto-creating nested hashes via recursive proc
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gistfile1.rb
hash = lambda { |h, k| h[k] = Hash.new &hash }
x = Hash.new &hash
x[1][2][3][4][5] = 6
x #=> {1=>{2=>{3=>{4=>{5=>6}}}}}
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