관리-도구
편집 파일: es.element.matches.js
// https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill if (!Element.prototype.matches) { Element.prototype.matches = Element.prototype.matchesSelector || Element.prototype.mozMatchesSelector || Element.prototype.msMatchesSelector || Element.prototype.oMatchesSelector || Element.prototype.webkitMatchesSelector || function(s) { var matches = (this.document || this.ownerDocument).querySelectorAll(s), i = matches.length; while (--i >= 0 && matches.item(i) !== this) {} return i > -1; }; }