https://developer.mozilla.org/en-US/docs/Web/API/XPathEvaluator
XPathEvaluator - Web APIs | MDN
The XPathEvaluator interface allows to compile and evaluate XPath expressions.
web apisxpathevaluatormdn
https://developer.mozilla.org/en-US/docs/Web/API/XPathEvaluator/XPathEvaluator
XPathEvaluator: XPathEvaluator() constructor - Web APIs | MDN
The XPathEvaluator() constructor creates a new XPathEvaluator.
constructor webxpathevaluatorapismdn