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Element.prototype.closest = Element.prototype.closest ||
function closest(selector, selectedElement = this) {
if (!selectedElement) return null;
return selectedElement.matches(selector) ?
selectedElement :
Element.prototype.closest(selector, selectedElement.parentElement);
};
Element.prototype.matches = Element.prototype.matches ||
Element.prototype.matchesSelector ||
Element.prototype.mozMatchesSelector ||
Element.prototype.msMatchesSelector ||
Element.prototype.oMatchesSelector ||
Element.prototype.webkitMatchesSelector ||
function matches(selector) {
const elms = (this.document || this.ownerDocument).querySelectorAll(selector);
let i = elms.length - 1;
while (i >= 0 && elms.item(i) !== this) { i -= 1; }
return i > -1;
};
// From the polyfill on MDN, https://developer.mozilla.org/en-US/docs/Web/API/ChildNode/remove#Polyfill
((arr) => {
arr.forEach((item) => {
if (Object.prototype.hasOwnProperty.call(item, 'remove')) {
return;
}
Object.defineProperty(item, 'remove', {
configurable: true,
enumerable: true,
writable: true,
value: function remove() {
if (this.parentNode !== null) {
this.parentNode.removeChild(this);
}
},
});
});
})([Element.prototype, CharacterData.prototype, DocumentType.prototype]);
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