replaceChildElement method

Implementation

@override
bool replaceChildElement(Node parent, Node? child1, List<Node>? child2) {
  if (parent.isA<Element>()) {
    var idx = parent.childNodes.indexOf(child1!);
    if (idx >= 0) {
      parent.removeNodeAt(idx);

      for (var i = 0; i < child2!.length; ++i) {
        var e = child2[i];
        parent.insertNode(idx + i, e);
      }
      return true;
    }
  }
  return false;
}