orderClassName = isNext ? CLASS_NAME_NEXT : CLASS_NAME_PREV\n\n    nextElement.classList.add(orderClassName)\n\n    reflow(nextElement)\n\n    activeElement.classList.add(directionalClassName)\n    nextElement.classList.add(directionalClassName)\n\n    const completeCallBack = () => {\n      nextElement.classList.remove(directionalClassName, orderClassName)\n      nextElement.classList.add(CLASS_NAME_ACTIVE)\n\n      activeElement.classList.remove(CLASS_NAME_ACTIVE, orderClassName, directionalClassName)\n\n...

(input.checked || input.hasAttribute('checked')) {\n      button.classList.add(CLASS_NAME_ACTIVE)\n    } else {\n      button.classList.remove(CLASS_NAME_ACTIVE)\n    }\n  }\n\n  // find all button toggles\n  buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE))\n  for (let i = 0, len = buttons.length; i < len; i++) {\n    const button = buttons[i]\n    if (button.getAttribute('aria-pressed') === 'true') {\n      button.classList.add(CLASS_NAME_ACTIVE)\n    } else {\n      button.class...