Ruby Interview | Ruby on Rails
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The Ruby Interview channel is a resource for preparing for Ruby developer interviews. It features questions, problem-solving solutions, and interview tips.
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Which of the following commands is used to create a new migration in Rails?
Which Ruby library is most commonly used for dependency injection?
Which SOLID principle is violated if a class is responsible for both data processing logic and data persistence?
Which of the following methods violates data encapsulation?
What is the name of the architectural style that separates responsibilities into models, views, and controllers?
Which design pattern is typically used to construct objects with complex creation logic?
Which of the following methods converts a string to a number?
Which of the following methods adds an element to the end of an array?
What does the following code do?
hash = { a: 1, b: 2, c: 3 }
hash.each_key { |key| puts key }
Which method is used to create a new instance of a class in Ruby?
What will the following code return?
arr = [1, 2, 3] arr.map { |x| x * 2 }
