RoR select_tag default value & options

Question

How can I set a default value using select_tag, and how can I keep the options open on page load?

Answer 1

Try this:

<%= select_tag(:option, options_for_select([["Option 1",1],["Option 2",2],["Option 3",3]], params[:option] ), class:"select") %>

works great in rails 5.