The lookupNamespaceURI method looks up the namespace URI associated to the given namespace prefix within an XPath expression evaluated by the XPathEvaluator interface.
XPathNSResolver.lookupNamespaceURI()
Syntax
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
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Browser compatibility
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See also
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https://developer.mozilla.org/en-US/docs/Web/API/XPathNSResolver/lookupNamespaceURI
