app/views/users/index.html.erb
<% content_for(:title, "Users Index") %>
<div class="container">
<h1>Users Index</h1>
<table class="table">
<thead>
<tr>
<th>First name</th>
<th>Last name</th>
<th>Email</th>
<th>Username</th>
<th colspan="3">Manage</th>
</tr>
</thead>
<tbody>
<% @users.each do |user| %>
<tr>
<td><%= user.first_name %></td>
<td><%= user.last_name %></td>
<td><%= user.email %></td>
<td><%= user.username %></td>
<td><%= link_to 'Show', user %></td>
<td><%= link_to 'Edit', edit_user_path(user) %></td>
<td><%= link_to 'Delete', user, method: :delete, data: { confirm: "Are you sure you want to delete " + user.first_name + "'s account? This action cannot be undone." } %></td>
</tr>
<% end %>
</tbody>
</table>
<br>
<%= link_to ' New User', new_user_path, class: "btn btn-default btn-sm fa fa-plus" %>
</div> <!-- container -->