In ruby, is truthiness idiomatic for a method name ending with a question mark?

Question

Is it normal for methods with a question mark to return something that\'s truthy (for example, a number) to indicate that something is true, or should true itself b

Answer 1

Adding a ? to a method name in Ruby is idiomatic that the method will return true or false. Object#nil? is a good example. In fact, Object has a lot of good examples of truthiness checks.