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- def a(options)
- options[:null] || false
- end
- def b(options)
- options[:null] if options.has_key?(:null)
- end
- options = {:null => true}
- p a(options) #=> false
- p b(options) #=> nil
- puts
- options = {:null => false}
- p a(options) #=> false
- p b(options) #=> false
- puts
- options = {:null => nil}
- p a(options) #=> false
- p b(options) #=> nil
- puts
- options = {}
- p a(options) #=> false
- p b(options) #=> nil
- puts
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