20 lines
846 B
JavaScript
20 lines
846 B
JavaScript
/* global Element */
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/* eslint-disable consistent-return, max-len, no-empty, no-plusplus, func-names */
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Element.prototype.closest = Element.prototype.closest || function closest(selector, selectedElement = this) {
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if (!selectedElement) return;
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return selectedElement.matches(selector) ? selectedElement : Element.prototype.closest(selector, selectedElement.parentElement);
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};
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Element.prototype.matches = Element.prototype.matches ||
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Element.prototype.matchesSelector ||
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Element.prototype.mozMatchesSelector ||
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Element.prototype.msMatchesSelector ||
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Element.prototype.oMatchesSelector ||
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Element.prototype.webkitMatchesSelector ||
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function (s) {
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const matches = (this.document || this.ownerDocument).querySelectorAll(s);
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let i = matches.length;
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while (--i >= 0 && matches.item(i) !== this) {}
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return i > -1;
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};
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