luhn-generator/update/node_modules/axe-core/lib/rules/xml-lang-mismatch-matches.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

import { getBaseLang, validLangs } from '../core/utils';

function xmlLangMismatchMatches(node) {
	// using -> "selector": "html[lang][xml\\:lang]" to narrow down html with lang and xml:lang attributes

	// get primary base language for each of the attributes
	const primaryLangValue = getBaseLang(node.getAttribute('lang'));
	const primaryXmlLangValue = getBaseLang(node.getAttribute('xml:lang'));

	// ensure that the value specified is valid lang for both `lang` and `xml:lang`
	return (
		validLangs().includes(primaryLangValue) &&
		validLangs().includes(primaryXmlLangValue)
	);
}

export default xmlLangMismatchMatches;