sweetalert laravel

@if (Session::has('sweet_alert.alert'))
<script>
  swal({!! Session::get('sweet_alert.alert') !!});
</script>
@endif

<script src="https://unpkg.com/[email protected]/dist/sweetalert2.all.js"></script>

$(document).on('click', '.button', function (e) {
    e.preventDefault();
    var id = $(this).data('id');
    swal({
            title: "Are you sure!",
            type: "error",
            confirmButtonClass: "btn-danger",
            confirmButtonText: "Yes!",
            showCancelButton: true,
        },
        function() {
            $.ajax({
                type: "POST",
                url: "{{url('/destroy')}}",
                data: {id:id},
                success: function (data) {
                              //
                    }         
            });
    });
});

<a href="" class="button" data-id="{{$user->id}}">Delete</a>