code: function updateCharactersCounter() {
        var remaining = options.chars - charsCount();
        if (remaining === 0) {
          $countdownDomNode.addClass('ut-text-countdown-max');
        } else {
          $countdownDomNode.removeClass('ut-text-countdown-max');
        }
        $countdownDomNode.text(remaining + ' / ' + options.chars);
      }
docs: /* in the case we have a character limitation, display and update the counter