Get parents until element matches selector
Finds all the ancestors of an element up until the element matched by the specified selector.
- Use
Node.parentNode
and awhile
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. - Use
Element.matches()
to check if the current element matches the specifiedselector
.
const getParentsUntil = (el, selector) => { let parents = [], _el = el.parentNode; while (_el && typeof _el.matches === 'function') { parents.unshift(_el); if (_el.matches(selector)) return parents; else _el = _el.parentNode; } return []; }; getParentsUntil(document.querySelector('#home-link'), 'header'); // [header, nav, ul, li]