The =~ operator is used to do inline Regular Expression matching, for instance:
"function" =~ /fun/
"function" =~ /dinosaurs/
What are possible return values for the =~ matcher?

Which of the following options is used to create a form HTML in the erb files?

Which of the following actions is fired by default when a new controller is created?

Which of the following statements regarding models in Ruby on Rails is correct?

What is the purpose of the model in an MVC architecture framework such as Ruby on Rails?

For the String class, when using #gsub! what are the potential return values?

Initialize method is always:

how Date.today differs from Date.current?

What is Strong Parameters in rails 4 ?

To establish an association from a Post model to another Post model (say if one post is in response to another and there is a parent_post_id column on the posts table), you would add the following to the Post model:

Output of the following? a = (1 <=> 2) b = (1 <=> 1.0) c = (b <=> a) puts c