I can't seem to be able to get XML Attributes using JSDOM and XPath Syntax on this XML Snippet.
<PARAGRAPH>
This is a text, about something, that happened on
<DATE ISO="20131117">17.November 2013</DATE>
. It is a very important date.
</PARAGRAPH>
By my understanding PARAGRAPH/DATE/@ISO is valid XPath Syntax for the Attribute and it's working just fine on sites like Xpather
Minimal working example:
import { JSDOM } from "jsdom";
const xml = `
<PARAGRAPH>
This is a text, about something, that happened on
<DATE ISO="20131117">17.November 2013</DATE>
. It is a very important date.
</PARAGRAPH>
`;
const dom = new JSDOM(xml, {contentType: "application/xml"});
const doc = dom.window.document;
// 2: XPathResult.STRING_TYPE
const date = doc.evaluate("PARAGRAPH/DATE/@ISO", doc, null, 2, null).stringValue;
console.log(date);
Expected Result: "20131117"
Actual Result: ""
Other non-working approaches
PARAGRAPH//DATE/@ISO,
string(PARAGRAPH/DATE/@ISO), XPath.FIRST_ORDERED_NODE_TYPE
The evaluation seems to come back empty.
try this with camaro. test with runkit here https://runkit.com/embed/vxenbgqb1g7x
var { transform } = require("camaro")
var xml = `
<PARAGRAPH>
This is a text, about something, that happened on
<DATE ISO="20131117">17.November 2013</DATE>
. It is a very important date.
</PARAGRAPH>
`;
async function main() {
console.log(await transform(xml, {iso: 'PARAGRAPH/DATE/@ISO'}))
}
main()
output
{iso: "20131117"}
Perhaps try
const dateEl = doc.evaluate("PARAGRAPH/DATE", doc, null, 9, null).singleNodeValue;
const date = dateEl.getAttribute("ISO");