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What is the difference between my_hash.compact and my_hash.compact! ?
Author: HivebriteStatus: PublishedQuestion passed 313 times
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Write a Ruby program that prints the sum of two numbers0
What is the difference between include, extend and prepend in Ruby?2
What is the output of the following code?
class Person
attr_accessor :name
end
person = Person.new
person.name = 'John'
puts person.name
1
How to change the value of a string in Ruby1
What is the output of the following code?
class A
def method1
puts 'method1'
end
private
def method3
puts 'method3'
end
end
obj = A.new
obj.method1
obj.method30
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)`.