Swal not defined laravel

@kikogyh add the CDN links in the head section

  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/limonte-sweetalert2/6.6.9/sweetalert2.min.css">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/limonte-sweetalert2/6.6.9/sweetalert2.min.js"></script>

@section('scripts')
    @if (alert()->ready())
        <script>
            swal({
                title: "{!! alert()->message() !!}"
            });
        </script>
    @endif
@endsection

but the specification is PHP Version: 7.1.9 Try this

Where is this function?

alertDelete() {
        Swal.fire({
            title: 'You can`t delete this',
            text: "You can`t do this",
            icon: 'warning',
            showCancelButton: true,
            confirmButtonText: 'Yes!',
          })
      },

Make sure it is run after your app.js file where you attach Swal to window

i so I solved it, I had to use window.swal.fire in vue file