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考虑到我有这些散列:如何实现Hash#all?多维哈希?
h1 = {"a" => { "b" => 1, "c" => {"d" => 2, "e" => 3} } }
h2 = {"a" => { "b" => 1, "c" => nil } }
而且我希望这些结果:
h1.multi_all? # true
h2.multi_all? # false
我将如何实现multi_all方法?
还是这样? `class Hash def r_all? self.values.map do | x | x.is_a?(哈希)? x.r_all? :x end.all? 结束 结束` – maprihoda 2011-12-13 20:33:30
您的变体忽略`&block` – 2011-12-13 20:50:11