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Q. What is the output of "hello".upcase in Ruby?
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Q. How do you check if a key exists in a hash in Ruby?
Q. What does the grep_v method do in Ruby enumerators?
Q. Which of the following methods is used to remove a key-value pair from a hash in Ruby?
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Q. What will be the output of the given code?
Q. In Ruby, what is the purpose of the module_function keyword?
Q. In Ruby, what is the correct way to define a constant?
Q. Which naming convention is commonly used for method names in Ruby?
Q. What is the purpose of using the next keyword within a block in Ruby?
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