Rails - Value Checking

These are all options posted to me:

• return [] unless myvalue

• return unless arguments.all?

  'arguments.all?' will return true if and only if none of the collection members is false or nil.

  If an argument can be false, you could do this:

  return unless arguments.all? { |arg| !arg.nil? }

• raise ArgumentError, "Parameter X is required" if x.blank?