How to pass second optional parameter to router?

Question

Laravel

Too few arguments to function App\Http\Controllers\HomeController::showCar(), 1 passed and exactly 2 expected

Route::get('/home/{car}/{id?}', '[email protected]');

Why is this happening? Help me decide, please.

Answer 1

It does not need to be passed , it needs to be made optional , it is ... optional ...
public function showCar(Car $car, $id = null)