Method constructor

src/xmlparser/xmlNode.js:12–16

(tagname)

export default class XmlNode {
  constructor(tagname) {
    this.tagname = tagname;
    this.child = []; //nested tags, text, cdata, comments in order
    this[":@"] = Object.create(null); //attributes map
  }
  add(key, val) {
    // this.child.push( {name : key, val: val, isCdata: isCdata });
    if (key === "__proto__") key = "#__proto__";