tap/app/views/users/index.html.erb

<h1>All users</h1>

<ul class="users">
  <% @users.each do |user| %>
    <li>
      <%= link_to user.name, user %> |
      <%= link_to "delete", user, method: :delete,
                                  data: { confirm: "You sure?" } %>
    </li>
  <% end %>
</ul>