search for: infrer

...given object and method, using country_options_for_select <http://api.rubyonrails.com/classes/ActionView/Helpers/FormOptionsHelper.html#M000406> to generate the list of option tags. ---- How was I to know it should have been an array? Had I not been so tired, I would''ve probably infrerred it from the parameter''s pluralization. Additionally, after figuring out the problem, I noted country_options_for_selects doc does say priority_countries should be an array. Still, I feel beaten. How do you know, from looking at the api docs or method signature, what kind of variable...