Adds a node using its namespaceURI and localName. If a node with that
namespace URI and that local name is already present in this map, it is
replaced by the new one. Replacing a node by itself has no effect.
Per the XML Namespaces specification, applications must use the value null
as the namespaceURI parameter for methods if they wish to have no namespace.
Adds a node using its namespaceURI and localName. If a node with that namespace URI and that local name is already present in this map, it is replaced by the new one. Replacing a node by itself has no effect. Per the XML Namespaces specification, applications must use the value null as the namespaceURI parameter for methods if they wish to have no namespace.