如何使用javascript颠倒xml的顺序

// XML字符串
var xmlString = "<root><element1>Value 1</element1><element2>Value 2</element2></root>";

// 解析XML
var parser = new DOMParser();
var xmlDoc = parser.parseFromString(xmlString, "text/xml");

// 获取XML节点
var nodes = xmlDoc.getElementsByTagName("*");

// 反转节点顺序
var reversedNodes = Array.from(nodes).reverse();

// 构建新的XML文档
var newXmlDoc = document.implementation.createDocument(null, null, null);
var rootElement = newXmlDoc.createElement("root");
newXmlDoc.appendChild(rootElement);

reversedNodes.forEach(function(node) {
  rootElement.appendChild(node.cloneNode(true));
});

// 序列化XML
var serializer = new XMLSerializer();
var reversedXmlString = serializer.serializeToString(newXmlDoc);

console.log(reversedXmlString);