children(element, selector) {\n    return [].concat(...element.children).filter(child => child.matches(selector))\n  },\n\n  parents(element, selector) {\n    const parents = []\n    let ancestor = element.parentNode.closest(selector)\n\n    while (ancestor) {\n      parents.push(ancestor)\n      ancestor = ancestor.parentNode.closest(selector)\n    }\n\n    return parents\n  },\n\n  prev(element, selector) {\n    let previous = element.previousElementSibling\n\n    while (previous) {\n      if (p...

element that comes first in the DOM\n  const order =\n    element1.compareDocumentPosition(element2) &\n    Node.DOCUMENT_POSITION_FOLLOWING;\n  const start = order ? element1 : element2;\n  const end = order ? element2 : element1;\n\n  // Get common ancestor container\n  const range = document.createRange();\n  range.setStart(start, 0);\n  range.setEnd(end, 0);\n  const { commonAncestorContainer } = range;\n\n  // Both nodes are inside #document\n  if (\n    (element1 !== commonAncestorContainer &&\n...

$link.addClass(CLASS_NAME_ACTIVE)\n    } else {\n      // Set triggered link as active\n      $link.addClass(CLASS_NAME_ACTIVE)\n      // Set triggered links parents as active\n      // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor\n      $link.parents(SELECTOR_NAV_LIST_GROUP)\n        .prev(`${SELECTOR_NAV_LINKS}, ${SELECTOR_LIST_ITEMS}`)\n        .addClass(CLASS_NAME_ACTIVE)\n      // Handle special case when .nav-link is inside .nav-item\n      $link.parents(SELECTOR_NAV_LIST_GROUP)\n...