21 lines
467 B
JavaScript
21 lines
467 B
JavaScript
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/**
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* Recursively traverse up the tree to check whether the provided child node
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* is the parent or a descendant of it.
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*
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* @param parent - Element to find
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* @param child - Element to test against parent
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*/
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const isNodeOrChild = (parent, child) => {
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if (!child) {
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return false;
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}
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else if (parent === child) {
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return true;
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}
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else {
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return isNodeOrChild(parent, child.parentElement);
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}
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};
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export { isNodeOrChild };
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