Listener not show result

[uluumbch]

So I try to make listener, but my creation was not show result after I type input.
Then I am trying to follow tutorial from docs https://orchid.software/en/docs/listener/ but it result the same, it show nothing after I fill the input. Do I doing it wrong?

The console reporting error undefined array key 0

[uluumbch]

nevermind guys, I think the docs have some issue, I just change the handle function
before

 public function handle(Repository $repository, Request $request): Repository
    {
        [$minuend, $subtrahend] = $request->all();

        return $repository
            ->set('minuend', $minuend)
            ->set('subtrahend', $subtrahend)
            ->set('result', $minuend - $subtrahend);
    }

after

 public function handle(Repository $repository, Request $request): Repository
    {
        $minuend = $request->get('minuend', 0);
        $subtrahend = $request->get('subtrahend', 0);

        return $repository
            ->set('minuend', $minuend)
            ->set('subtrahend', $subtrahend)
            ->set('result', $minuend - $subtrahend);
    }

[RuLeiFei]

Thank you! You saved my day!