Parse and modify XML tag element using xmldom

[youemailmee]

I am trying to read modify write and XML tag element value.

fs.readFile('./test.xml','utf8', function (err, data) {
if (err) {
return console.log(err);
} else {
var doc = new dom().parseFromString(data);

       doc.getElementsByTagName("status")[0].childNodes[0].nodeValue = '100';

       //Below statement return correct value 100
       console.log(doc.getElementsByTagName("status")[0].childNodes[0].nodeValue);

       var serializer = new xmldom.XMLSerializer();
       var writetofile = serializer.serializeToString(doc);

        //Returns WRONG old value for the modified childNode.   
       console.log(writetofile);
  }

});

Am I missing something ?

Thanks in advance.

[seanhodges]

I'm seeing the same issue, I posted a similar explanation here: http://stackoverflow.com/questions/30571674/replacing-text-in-an-xml-node-in-node-js.

The problem seems to be with the XMLSerializer, I can drill down to the same nodeValue result numerous times and get the correct output, but as soon as I serialise the document the node text is reverted to the original value.

[fruityfred]

Same problem for me :(
Is there any chance to get this fixed quickly? Or is there a simple workaround?
Thanks!

[cburatto]

Folks, it is 2019 and I am having this issue too. Any updates? If you print the node object (instead of serializing it) you get a discrepancy.

In my case I am using childNodes.item(0).nodeValue to change the existing value English to Portuguese;

If you print the node before changing, you have

Text {
  data: 'English',
  nodeValue: 'English',
  length: 7,
  lineNumber: 1223,
  columnNumber: 51,

But after changing, I notice that the data property is not modified.

Text {
  data: 'English',
  nodeValue: 'Portuguese',
  length: 7,
  lineNumber: 1223,
  columnNumber: 51,

Any way to access the property and modify it too?

[cburatto]

A related issue with a workaround here: #33 (comment)

[designbyadrian]

Hello! It's the year 2023 and I'm experiencing the same issue.

The issue does, indeed, lie in that changing the nodeValue doesn't automatically update the data value.

So I decided to edit the data value as well with satisfying results:

node.firstChild.nodeValue = text;
node.firstChild.data = text;

[karfau]

this project has not been maintained for years, but the fork https://github.com/xmldom/xmldom which is published as @xmldom/xmldom has more recent activity.

Even though this issue has also not been addressed in that repo, and it's not a trivial change since it's using plain fields all over the place instead of getters, it might be worth porting the issue over there, so it can be prioritized.