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<link rel=help href="https://dom.spec.whatwg.org/#dom-node-nodetype">
<link rel=help href="https://dom.spec.whatwg.org/#dom-node-haschildnodes">
<link rel=help href="https://dom.spec.whatwg.org/#dom-node-childnodes">
<link rel=help href="https://dom.spec.whatwg.org/#dom-node-firstchild">
<link rel=help href="https://dom.spec.whatwg.org/#dom-node-lastchild">
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<script src="/resources/testharnessreport.js"></script>
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