11 lines
303 B
Ruby
11 lines
303 B
Ruby
puts "@object is nil" if @object.nil? # instance variable
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puts "$object is nil" if $object.nil? # global variable, too
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# It recognizes as the local variable even if it isn't executed.
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object = 1 if false
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puts "object is nil" if object.nil?
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# nil itself is an object:
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puts nil.class # => NilClass
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