JavaScript高级程序设计学习18_javascript与XML

1、跨浏览器处理XML

解析XML

function parseXml(xml){
  let xmldom = null;
  if(typeof DOMParser != "undefined"){
    xmldom = (new DOMParser()).parseFromString(xml,"text/xml");
    let errors = xmldom.getElementByTagName("parsererror");
    if(erroes.length){
      throw new Error("XML parsing error :" + errors[0].textCount);
    }
  }
  else if(typeof ActiveXObject != "undefined"){
    xmldom = createDomcument();
    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;
}