)
Not documented.
Source
@DomName('Document.createElementNS')
@DocsEditable()
Element createElementNS(String namespaceURI, String qualifiedName, [String typeExtension]) => wrap_jso(_blink.BlinkDocument.instance.createElementNS_Callback_3_(unwrap_jso(this), namespaceURI, qualifiedName, typeExtension));