XPathNSResolver: lookupNamespaceURI() method
The lookupNamespaceURI method looks up the namespace URI associated to the
given namespace prefix within an XPath expression evaluated by the
XPathEvaluator interface.
Syntax
js
lookupNamespaceURI(prefix)
Parameters
prefix-
A string representing the prefix to look for.
Return value
A string representing the associated namespace URI or
null if none is found.
Specifications
No specification found
No specification data found for api.XPathNSResolver.lookupNamespaceURI.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
BCD tables only load in the browser