Get element ancestors

Angelos Chalaris · JavaScript, Browser · Jan 5, 2021

Returns all the ancestors of an element from the document root to the given element.

  • Use Node.parentNode and a while loop to move up the ancestor tree of the element.
  • Use Array.prototype.unshift() to add each new ancestor to the start of the array.
const getAncestors = el => {
  let ancestors = [];
  while (el) {
    ancestors.unshift(el);
    el = el.parentNode;
  }
  return ancestors;
};
getAncestors(document.querySelector('nav'));
// [document, html, body, header, nav]

Recommended snippets