Why did not delete data table records in Laravel 5.6

in Laravel 5.6 application I have following Controller function to delete vehicle table records,

public function deleteOneAd($id)
    {
 DB::table('vehicles')
            ->where('id', $id)

            ->delete();
 return redirect()->back();  

my edit button link is,

href="/myads//delete" onclick="return confirm('Are you sure to want to delete this record?')" >Delete</a></td>

and route for delete,

Route::get('myads/{id}/delete', [
    'uses' => '\App\Http\Controllers\VehicleController@deleteOneAd',
]);

but when I click delete button and conform javascript message to delete records it is not working. I mean It is not deleting.

via Chebli Mohamed