/**
 * @snippet       Truncate Tags @ Single Product
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 6
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */
 
add_action( 'woocommerce_after_single_product', 'bbloomer_woocommerce_tag_list_truncate' );
  
function bbloomer_woocommerce_tag_list_truncate() { 
   wc_enqueue_js('
      var ellipses = "... ";
      var delimiter = ",";
      var content = $(".tagged_as").html();
      var a = content.split(delimiter).slice(0, 3);
      var b = content.split(delimiter).slice(3);
      var html = a + "<span class=\'truncated\'>" + ellipses + "<a class=\'read-more\'>+</a></span><span class=\'truncated\' style=\'display:none\'>, " + b + "</span>";
      $(".tagged_as").html(html);
      $(".read-more").click(function(e) {
         e.preventDefault();
         $(".tagged_as .truncated").toggle();
      });
   ');
}