Expert
What does the following code do?
foobar = []
class << foobar
def foo
"Hello World"
end
end
Author: HivebriteStatus: PublishedQuestion passed 279 times
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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
1
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What is the output of the following Ruby code? `numbers = [1, 2, 3, 4, 5]`
`numbers.each { |n| puts n }`
`numbers.map { |n| puts n }`0
Call a method only if the caller is not null.,Does the same thing as `@my_object.try!(:my_method)`.