How can sweet alert call a function?

Hello,

We Really Apologize but we currently do not provide Support for 3rd-Party Plugins according to the Support Policy: https://themeforest.net/page/item_support_policy . But what we found on the SweetAlert Plugin Documentation: https://limonte.github.io/sweetalert2/ , you will need to use the following code for your Usage Scenario:

swal({
  title: 'Are you sure?',
  text: "You won't be able to revert this!",
  type: 'warning',
  showCancelButton: true,
  confirmButtonColor: '#3085d6',
  cancelButtonColor: '#d33',
  confirmButtonText: 'Yes, delete it!',
  cancelButtonText: 'No, cancel!',
  confirmButtonClass: 'btn btn-success',
  cancelButtonClass: 'btn btn-danger',
  buttonsStyling: false
}).then(function() {
  swal(
    'Deleted!',
    'Your file has been deleted.',
    'success'
  );
}, function(dismiss) {
  // dismiss can be 'cancel', 'overlay',
  // 'close', and 'timer'
  if (dismiss === 'cancel') {
    swal(
      'Cancelled',
      'Your imaginary file is safe :)',
      'error'
    );
  }
})

Hope this Helps! Thanks for your Patience.

Meanwhile, do let us know if we can help you with anything else or if you find any further issues with Canvas.