Есть . нашёл в другом месте
function getClosest(el, tag) {
// this is necessary since nodeName is always in upper case
tag = tag.toUpperCase();
do {
if (el.nodeName === tag) {
// tag name is found! let's return it. :)
return el;
}
} while (el = el.parentNode);
// not found :(
return null;
}
