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@timrandg
Created January 8, 2012 06:35
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public
def rec_flatten
collection ||= []
return collection if self == []
if self.class != Array
return collection << self
end
collection + self[0].rec_flatten + self[1..-1].rec_flatten
end
[[3],1,[2],[[[[[[1]],4,[4]]]],2]].rec_flatten
# => [3, 1, 2, 1, 4, 4, 2]
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