How to get the current route in a twig template in Symfony?

Question

About Routing, which items are true?

Accepted Answer

In a twig template, the current route is accessible by the following variable: 
```twig
{{ app.request.attributes.get(("_route") }}
```

Accepted Answer

All substitution parameters of a route can be declared as an argument of a controller.

Answer

In the configuration of a route, the request method is defined in the following directive: 
```yaml
requirements: { "_method": "..." }
```

Answer

In the Symfony console, the command to list the routes is: 
```php
php app/console debug:router:list
```

Question from the Symfony 3 test