Saxon » SaxonJS

Here's a more straightforward example:

sort(('C', 'A', 'B'))

=> correctly sorts the list

sort(('A', 'B', 'C'), 'http://www.w3.org/2013/collation/UCA?numeric=yes')

=> Cannot read properties of null (reading 'toString')

I've logged this as a bug here: https://saxonica.plan.io/issues/5162

Alf, which version of SaxonJS are you using? And could you provide more details of your invocation? I have not been able to reproduce your error with SaxonJS 2 in the browser. For instance the following produces the expected result:

SaxonJS.XPath.evaluate("sort(('C', 'A', 'B'), 'http://www.w3.org/2013/collation/UCA?numeric=yes')");

I'm using saxon-js v2.3.0 - here's a minimal example:

import SaxonJS from 'saxon-js'

const doc = await SaxonJS.getResource({ text: '<test/>', type: 'xml' })

const selector =
  "sort(('C', 'A', 'B'), 'http://www.w3.org/2013/collation/UCA?numeric=yes')"

const result = SaxonJS.XPath.evaluate(selector, doc)

console.log(result)

Here's a demo in CodeSandbox.

Thanks! OK, I've now been able to reproduce your issue. Very strange that this occurs when calling SaxonJS.XPath.evaluate in Node.js, but not in the browser (and also not an issue when using the -xp command line option). Please follow https://saxonica.plan.io/issues/5162 for bug updates.

The CodeSandbox demo is actually running in the browser - see the output by itself here.

Indeed. I meant the difference between SaxonJS built for Node.js and for the browser: you're using the Node.js version of SaxonJS.