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Q. What does the gem uninstall gem_name -v version_number command do in Ruby?
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Q. String is a sequence of _________ characters.
Q. What is the purpose of the + quantifier in a regular expression in Ruby?
Q. What does the (?<=...) construct represent in a regular expression in Ruby?
Q. How do you call a block in Ruby?
Q. What does the term "method chaining" refer to in Ruby?
Q. Which assertion method is commonly used in MiniTest for testing equality of values?
Q. Which Ruby version manager is commonly used for managing multiple Ruby installations?
Q. What is the purpose of the chunk_while method in Ruby enumerators?
Q. What does the `each_key` method do when called on a hash in Ruby?
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