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cesarfigueroa/hash.rb

Last active December 17, 2015 22:19
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Hash extensions for including and excluding keys.
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hash.rb
class Hash
def only(*keys)
self.select { |key, _| keys.include?(key) }
end
def except(*keys)
self.reject { |key, _| keys.include?(key) }
end
end
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For the mutable versions, use select! and reject! instead, respectively.

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