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jasonm23/compact.rb

Last active August 29, 2015 14:02
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Recursive hash compact
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compact.rb
# Recursive hash compact
def compact hash
p = ->(k,v){ (v.kind_of?(Hash) and v.keys.length > 0) ? (v.delete_if(&p);false) : (v.nil? or (v.kind_of?(Hash) and v.keys.length == 0)) }
hash.delete_if(&p)
end
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