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contribu/new_safe_hash.rb

Created August 3, 2016 12:51
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new_safe_hash.rb (multidimensional hash)
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new_safe_hash.rb
def new_safe_hash()
ifnone = lambda { |hash, key|
hash[key] = Hash.new(&ifnone)
}
Hash.new(&ifnone)
end
a = new_safe_hash()
a['x']['y'] = 3
puts a
# {"x"=>{"y"=>3}}
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