如何在Javscript中解析XML对象

var parser = new DOMParser();

var xmlString = "<root><name>John</name><age>25</age></root>";
var xmlDoc = parser.parseFromString(xmlString, "text/xml");

var rootElement = xmlDoc.documentElement;
console.log(rootElement.nodeName); // 输出：root

var nameElement = xmlDoc.getElementsByTagName("name")[0];
console.log(nameElement.textContent); // 输出：John

var childNodes = rootElement.childNodes;
for (var i = 0; i < childNodes.length; i++) {
  var node = childNodes[i];
  if (node.nodeType === Node.ELEMENT_NODE) {
    console.log(node.nodeName + ": " + node.textContent);
  }
}