代码示例:(标识:jsck_node_valtypename)
<!DOCTYPE html>
<html>
<body>

<h1>Element 对象</h1>

<h2>nodeName、nodetype 以及 nodeValue 属性</h2>

<div id="myDIV">This is "myDIV".</div>

<p>“myDIV” 的第一个子节点的节点名称、类型和值是:</p>

<p id="demo"></p>

<script>
const x = document.getElementById("myDIV").firstChild;
let text = "";
text += "Name: " + x.nodeName + "<br>";
text += "Value: " + x.nodeValue + "<br>";
text += "Type: " + x.nodeType;
document.getElementById("demo").innerHTML = text;
</script>

</body>
</html>
运行结果: