如何使用javascript读取xml中的逗号分隔值

var xhr = new XMLHttpRequest();
xhr.open("GET", "example.xml", true);
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    var xmlContent = xhr.responseText;
    // 在这里处理XML内容
  }
};
xhr.send();

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

var valuesElement = xmlDoc.querySelector("values");

var values = valuesElement.textContent.split(",");