wp/wp-includes/js/dist/vendor/wp-polyfill-node-contains.js
author ymh <ymh.work@gmail.com>
Mon, 14 Oct 2019 18:28:13 +0200
changeset 9 177826044cd9
child 18 be944660c56a
permissions -rw-r--r--
upgrade wordpress to 5.2.3
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(function() {
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	function contains(node) {
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		if (!(0 in arguments)) {
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			throw new TypeError('1 argument is required');
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		}
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		do {
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			if (this === node) {
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				return true;
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			}
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		} while (node = node && node.parentNode);
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		return false;
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	}
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	// IE
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	if ('HTMLElement' in this && 'contains' in HTMLElement.prototype) {
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		try {
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			delete HTMLElement.prototype.contains;
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		} catch (e) {}
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	}
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	if ('Node' in this) {
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		Node.prototype.contains = contains;
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	} else {
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		document.contains = Element.prototype.contains = contains;
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	}
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}());