How to access a Twig variable via Javascript?

Question

I am creating an autocomplete to use in my system and I am using Twig...

My script is very simple and with some searches on the internet, that’s what I got:

<script type="text/javascript">
    var nomes = {{ usuarios | json_encode | raw }};
        $( "#busca" ).autocomplete({
            minLength: 1,
            source: nomes
        });
</script>