add confirmation to sweet alert code example

Example 1: sweetalert confirm box

swal({  title: "Are you sure?",  text: "Once deleted, you will not be able to recover this imaginary file!",  icon: "warning",  buttons: true,  dangerMode: true,}).then((willDelete) => {  if (willDelete) {    swal("Poof! Your imaginary file has been deleted!", {      icon: "success",    });  } else {    swal("Your imaginary file is safe!");  }});

Example 2: confirm sweet alert

swal("Are you sure?", {  dangerMode: true,  buttons: true,});