Use StringInquirer for Readable Predicate Methods - Andy Croll

You’ve probably seen Rails.env.production? in your codebase to ensure that certain code only runs in production. Instead of having to compare strings, Rails.env == "production", Rails wraps the string in an ActiveSupport::StringInquirer so you get readable methods like .production? and .development?. Active Support also adds an inquiry method to String so you can use this same pattern in your own code.