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9 lines
232 B
TypeScript
9 lines
232 B
TypeScript
export default (parent, child, checkSame = true) => {
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if (checkSame && parent === child) return true;
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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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};
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