代码示例:(标识:jsck_node_removechild_5)
<!DOCTYPE html>
<html>
<body>

<h1 id="myH1">Element 对象</h1>

<h2>removeChild() 方法</h2>

<iframe src="/static/demo/html/removechild.html" style="height:400px;width:650px;"></iframe>

<p>单击按钮将 h1 从其父文档中删除并将其插入到其他文档中。</p>

<button onclick="remove()">删除</button>
<button onclick="insert()">插入</button>

<script>
const child = document.getElementById("myH1");

function remove() {
  child.parentNode.removeChild(child);
}

function insert() {
  const frame = document.getElementsByTagName("IFRAME")[0]
  const h = frame.contentWindow.document.getElementsByTagName("H1")[0];
  const x = document.adoptNode(child);
  h.appendChild(x);
}
</script>

</body>
</html>
运行结果: