2020-01-30 04:37:25 +09:00
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export default (parent, child, checkSame = true) => {
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if (checkSame && parent === child) return true;
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2017-02-20 20:13:42 +09:00
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let node = child.parentNode;
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while (node) {
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if (node == parent) return true;
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node = node.parentNode;
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}
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return false;
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2017-03-18 20:05:11 +09:00
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};
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