How many types of variables are available in ruby class?
difference between member routes and collection routes ?
What is the difference between delete and destroy ?
what is the difference between new, save and create?
What is the purpose of auto_load in ruby?
Explain me what is the difference between concern and application_controller.rb in ruby on rails?
Is ruby on rails popular?
what is the difference in scope for these two variables: @@name and @name?
What does session and cookies represent in ruby on rails?
Explain me what are the limits of ruby on rails?
Explain how you can run rails application without creating databases?
when self.up and self.down method is used?
what is the defined operator?