Gio.Menu.prototype.append_submenu

function append_submenu(label: String, submenu: Gio.MenuModel): void {
    // Gjs wrapper for g_menu_append_submenu()
}
  

Convenience function for appending a submenu menu item to the end of menu. Combine Gio.MenuItem.new_submenu and Gio.Menu.prototype.insert_item for a more flexible alternative.

Since 2.32