跨浏览器处理处理XML

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一个简单的处理 XML 的函数

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function parseXml(xml) {
  //跨浏览器处理 XML
  var xmldom = null

  if (typeof DOMParser != "undefined") {
    xmldom = new DOMParser().parseFromString(xml, "text/xml")
    var errors = xmldom.getElementsByTagName("parsererror")
    if (errors.length) {
      throw new Error("XML parsing error:" + errors[0].textContent)
    }
  } else if (typeof ActiveXObject != "undefined") {
    xmldom = createDocument()
    xmldom.loadXML(xml)
    if (xmldom.parseError != 0) {
      throw new Error("XML parsing error:" + xmldom.parseError.reason)
    }
  } else {
    throw new Error("No XML parser available.")
  }
  return xmldom
}

序列化 XML 文档

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//序列化 xmldom 文档
function serializeXML(xmldom) {
  if (typeof XMLSerializer != "undefined") {
    //兼容 ie9+ safari Chrome opera
    var serializer = new XMLSerializer()
    return serializer.serializeToString(xmldom)
  } else if (typeof xmldom.xml != undefined) {
    //兼容 ie9.0 以下
    return xmldom.xml
  } else {
    throw new Error("serialize XML Dom failed!")
  }
}