How to update data with an Ajax request in Rails?

Question

JavaScript

Hello. Tell me how to update the information in the block using an Ajax request. Update once every ten seconds.
What file should I write javascript to?
my_controller.rb

def index
 @all_users = User.where(#здесь парамаетры поиска)
 @active_users = User.where(#здесь параметры поиска)
 end

index.html.erb

<h1>Статистика</h1>
<h2>Всего пользователей: <%= @all_users.count%> </h2>
<h2>Активных пользователей: <%= @active_users.count%> </h2>

Answer 1

Obviously in my.js

Answer 2

I think it will be clear here, just change it so that it was by the timer, and not by the search.
railscasts.com/episodes/240-search-sort-paginate-w...