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What does ['string', 50, []].map(&:class).map(&:instance_methods).reduce {|a, b| a & b} return?
Author: HivebriteStatus: PublishedQuestion passed 289 times
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Call a method only if the caller is not null.,Does the same thing as `@my_object.try!(:my_method)`.0
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What is the output of the following code?
class Person
attr_accessor :name
end
person = Person.new
person.name = 'John'
puts person.name
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