Method _append

src/textual/_node_list.py:118–131

Append a Widget. Args: widget: A widget.

(self, widget: Widget)

        return self._nodes_by_id.get(widget_id)

    def _append(self, widget: Widget) -> None:
        """Append a Widget.

        Args:
            widget: A widget.
        """
        if widget not in self._nodes_set:
            self._nodes.append(widget)
            self._nodes_set.add(widget)
            widget_id = widget.id
            if widget_id is not None:
                self._ensure_unique_id(widget_id)
                self._nodes_by_id[widget_id] = widget
            self.updated()

    def _insert(self, index: int, widget: Widget) -> None:
        """Insert a Widget.