Adding first / last CSS classes to menus

by

is that possible, without javascript hacks?
like this:

<ul class="my_menu">
  <li class="first"> ... </li>
  <li> ... </li>
  <li> ... </li>
  <li class"with_sub"> ... 
    <ul class="my_menu_sub">
      <li class="first"> ... </li>
      <li> ... </li>
      <li> ... </li>
      <li class="last"> ... </li>
    </ul>
  </li>
  <li> ... </li>
  <li> ... </li>
  <li class="last"> ... </li>
</ul>

9

A better and simpler approach:

function add_first_and_last($items) {
  $items[1]->classes[] = 'first-menu-item';
  $items[count($items)]->classes[] = 'last-menu-item';
  return $items;
}

add_filter('wp_nav_menu_objects', 'add_first_and_last');

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