createElementNS method Null safety

Element createElementNS (
  1. String namespaceURI,
  2. String qualifiedName,
  3. [String? typeExtension]
)

Implementation

Element createElementNS(String namespaceURI, String qualifiedName,
    [String? typeExtension]) {
  return (typeExtension == null)
      ? _createElementNS_2(namespaceURI, qualifiedName)
      : _createElementNS(namespaceURI, qualifiedName, typeExtension);
}