20 lines
466 B
JavaScript
20 lines
466 B
JavaScript
// https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
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if (!Element.prototype.matches) {
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Element.prototype.matches
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= Element.prototype.msMatchesSelector
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|| Element.prototype.webkitMatchesSelector
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}
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if (!Element.prototype.closest) {
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Element.prototype.closest = function(s) {
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var el = this
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do {
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if (el.matches(s)) return el
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el = el.parentElement || el.parentNode
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} while (el !== null && el.nodeType === 1)
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return null
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}
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}
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