method

keep

rails latest stable - Class: ActionController::Flash::FlashHash

keep(k = nil)

public

Keeps either the entire current flash or a specific flash entry available for the next action:

   flash.keep            # keeps the entire flash
   flash.keep(:notice)   # keeps only the "notice" entry, the rest of the flash is discarded

# File actionpack/lib/action_controller/flash.rb, line 99
      def keep(k = nil)
        use(k, false)
      end