XML Tag name reading in JavaScript
Question
I need help to read the name of an XML tag and save it in a variable in order to compare it with other values.
This is an example XML snippet showing what I need:
<H01></H01>
<H02></H02>
<H03></H03>
I need to get the H[number] to be able to compare it with another H[number] .
2 answers
solution1
0 2018-12-01 17:59:21
I'm answering this in Node.js context since you have tagged the question so.
Use fast-xml-parser . Here's an example:
var parser = require('fast-xml-parser');
var json = parser.parse(xmlData,options);
You'll end up with an object that's easy to use in your program. You can also validate your XML, etc. Make sure to check out the readme .
solution2
0 2018-12-01 18:28:32
Here is a way to view them with JS inside of HTML. I had to wrap the H# tags in another tag to make them be valid XML. First save them into an array.
<!DOCTYPE html>
<html>
<body>
<p id="outTags"></p>
<p id="outArrayAsList"></p>
<script>
var parser, xmlDoc;
var text = "<wrap><H01>1</H01>" +
"<H02>2</H02>" +
"<H03>3</H03></wrap>";
parser = new DOMParser();
xmlDoc = parser.parseFromString(text,"text/xml");
var tags = [];
var x = xmlDoc.documentElement.childNodes;
for (i = 0; i < x.length ;i++) {
tags[i] = x[i].nodeName;
}
document.getElementById("outTags").innerHTML = tags;
// or you could iterate over the array elements
var text = "<ul>";
for (i = 0; i < tags.length; i++) {
text += "<li>" + tags[i] + "</li>";
}
text += "</ul>";
document.getElementById("outArrayAsList").innerHTML = text;
</script>
</body>
</html>
Output looks like:
H01,H02,H03
H01
H02
H03
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