analytics/assets/js/polyfills/closest.js
2019-09-02 12:29:19 +01:00

14 lines
407 B
JavaScript

if (window.Element && !Element.prototype.closest) {
Element.prototype.closest =
function(s) {
var matches = (this.document || this.ownerDocument).querySelectorAll(s),
i,
el = this;
do {
i = matches.length;
while (--i >= 0 && matches.item(i) !== el) {};
} while ((i < 0) && (el = el.parentElement));
return el;
};
}