Node.lookupNamespaceURI()
The Node.lookupNamespaceURI()
method accepts a prefix and
returns the namespace URI associated with it on the given node if found (and
null
if not).
Syntax
var namespace = node.lookupNamespaceURI(prefix);
Parameters
prefix
- The prefix to look for. If this parameter is
null
, the method will return the default namespace URI, if any.
Return value
A DOMString
containing the namespace URI. If the prefix is not found, it
returns null
.
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'Node: lookupNamespaceURI' in that specification. |
Living Standard |
Browser compatibility
BCD tables only load in the browser
In Firefox, due to bug 312019, this method
does not work with dynamically assigned namespaces (i.e., those set with
Node.prefix
).