What is whitelist and blacklist in Ruby on Rails 4?

Question

Ruby on Rails

Fellow experts. On the rusrails website, in the security section, I read about the white and black lists. But I never found how to use this creation. Please direct me to the necessary resources (ideally Russian-speaking, but I won’t refuse English either)

Answer 1

strong_parameters

Answer 2

the same as in any other context. blacklist - what is prohibited, white list - what is allowed (everything that does not come out is considered prohibited).