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liaden/level.rb

Created October 15, 2015 21:12
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level.rb
def level(hash, index)
if level == 1
return if block_given?
yield hash.values
else
hash.values
end
end
# or hash.values.reduce(Set.new) ....
hash.values.map { |subhash| level(subhash, index-1) }.flatten.uniq
end
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