Ruby Gold Practice Questions - Ruby Association Certified Ruby Programmer Gold Version 3 Exam

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Given: module M refine String do def shout upcase + "!" end end end def call_shout(s) s.shout end using M puts call_shout("hi") What happens?

It raises NoMethodError because the refinement is not active inside call_shout It prints "HI!" It prints "hi!" It raises a SyntaxError because using cannot appear at the top level

Correct Answer:

It raises NoMethodError because the refinement is not active inside call_shout

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