Convert XML to JSON (and back) using Javascript

Question

How would you convert from XML to JSON and then back to XML?

The following tools work quite well, but aren\'t completely consistent:

• xml2json

Answer 1

I was using xmlToJson just to get a single value of the xml.
I found doing the following is much easier (if the xml only occurs once..)

let xml =
'' +
  ' 762384324' +
  ' Hank ' +
  ' Stone' +
'';

let getXmlValue = function(str, key) {
  return str.substring(
    str.lastIndexOf('<' + key + '>') + ('<' + key + '>').length,
    str.lastIndexOf('')
  );
}


alert(getXmlValue(xml, 'firstname')); // gives back Hank