What does each of these do to the XML document?

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The following XML document is stored in an object called "x":

XML

<?xml version = "1.0"?>
<note>
 <to>Tove</to>
 <from>Jani</from>
 <heading>Reminder</heading>
 <body>Don't forget me this weekend</body>
</note>

What will each of the following code(s) display when used?

1.)

document.write(x.documentElement.childNodes.item(0).nodeName)

2.)

document.write(x.documentElement.childNodes.length)

3.)

document.write(x.documentElement.childNodes[1].childNodes[0].nodeValue)

4.)

document.write(x.documentElement.childNodes[0].nextSibling.nodeName)

5.)

document.write(x.documentElement.nodeName)

6.)

document.write(x.documentElementchildNode[1].nodeName)

What I have tried:

-Looking up the information on my own
-Trying recreate the XML document and trying a multitude of things
-Going through old notes
-Searching the internet for a more clear-cut answer
-Trying anything else

Posted 25-Jul-23 8:55am

Larry Chapman II

Updated 26-Jul-23 3:23am

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OriginalGriff · Answer 1 · 2023-07-25T09:19:00

While we are more than willing to help those that are stuck, that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you.

So we need you to do the work, and we will help you when you get stuck. That doesn't mean we will give you a step by step solution you can hand in!
Start by explaining where you are at the moment, and what the next step in the process is. Then tell us what you have tried to get that next step working, and what happened when you did.

Just posting your assignment and saying "I googled for the answers" isn't going to get you anywhere.
Read your course materials, read the documentation (Document: documentElement property - Web APIs | MDN[^] is a good place to start), and try executing the code against the XML file.

Richard MacCutchan · Answer 2 · 2023-07-26T03:23:00

The document.write statement is part of the HTML DOM, and nothing to do with XML. XML is merely a useful way of formatting data for transmission between computing systems or applications. So it seems that you are mixing two different systems without fully understanding either. You can learn both at W3Schools Online Web Tutorials[^].

Larry Chapman II · Answer 3 · 2023-07-26T03:15:00

Okay so, as far as I've come along this is essentially what I'm trying to do here:

<!DOCTYPE html>
<html>
<body>

<p id="demo">something else should be showing</p>

<script>
var parser, xmlDoc;
var text = "<note><to>Tove</to>"+"<from>Jani</from>"+"<heading>Reminder</heading>"+"<body>Don't forget me this weekend</body></note>";

parser = new DOMParser();
xmlDoc = parser.parseFromString(text,"text/xml");

document.getElementById("demo").innerHTML =
xmlDoc.getElementsByTagName("note")[0].childNodes.length; //Output: 4

/*xmlDoc.getElementsByTagName("note")[0].childNodes.item(0).nodeName;*/ //Output: "to"

/*xmlDoc.getElementsByTagName("note")[0].nodeName;*/ //Output: 

/*xmlDoc.getElementsByTagName("note")[0].childNodes[1].nodeName;*/ //Output: "from"

/*xmlDoc.getElementsByTagName("note")[0].childNodes[1].childNodes[0].nodeValue;*/ //Output: "Jani"

/*xmlDoc.getElementsByTagName("note")[0].childNodes[0].nextSibling.nodeName;*/ //Output: "from"
</script>

</body>
</html>

What does each of these do to the XML document?

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