Add a helper for formatting numbers.

lib/MyApp.pm

@@ -1,12 +1,27 @@
 package MyApp;
 use Mojo::Base 'Mojolicious', -signatures;
 
+# Define home-made helpers.
+sub add_my_helpers ($self) {
+   $self->helper(
+      commify => sub ($self, $number) {
+         my $rev = reverse $number;
+         while ($rev =~ s/(\d{3})(\d)/$1,$2/) {};
+         return scalar reverse $rev;
+      }
+   );
+   return;
+}
+
 sub startup ($self) {
    # Set a "secret" for signing cookies, preventing "Your secret
    # passphrase needs to be changed" in the log, using my_app.yml.
    my $config = $self->plugin('NotYAMLConfig');
    $self->secrets([ $config->{secrets} ]);
 
+   # Add home-made helper(s).
+   $self->add_my_helpers;
+
    # Set routes.
    my $r = $self->routes;
    # Home gets an explicit name, else its name is an empty string.  A

templates/_page-navigation.html.ep

@@ -1,5 +1,6 @@
 <p/>
-Page <%= $pager->current_page %> of <%= $pager->last_page %>
+Page <%= commify($pager->current_page) %>
+of <%= commify($pager->last_page) %>
 
 &nbsp;&nbsp;&nbsp;
 <%= link_to url_with(page_number => 1) => begin %>◄ First<% end %>

templates/book/authors.html.ep

@@ -10,7 +10,7 @@
 %= end
 
 <p/>
-<%= $pager->total_entries %> authors found.
+<%= commify($pager->total_entries) %> authors found.
 
 <p/>
 <div>

templates/book/books.html.ep

@@ -10,7 +10,7 @@
 %= end
 
 <p/>
-<%= $pager->total_entries %> books found.
+<%= commify($pager->total_entries) %> books found.
 
 <p/>
 <div>