adding function to sweet alert button code example

Example 1: swalert 2 show loader

Swal.fire({
                title: 'Please Wait !',
                html: 'data uploading',// add html attribute if you want or remove
                allowOutsideClick: false,
                onBeforeOpen: () => {
                    Swal.showLoading()
                },
            });

Example 2: sweet alert js

swal({
     title: "Deleted!",
     text: "Your row has been deleted.",
     button: "Close", // Text on button
     icon: "success", //built in icons: success, warning, error, info
     timer: 3000, //timeOut for auto-close
      buttons: {
        confirm: {
          text: "OK",
          value: true,
          visible: true,
          className: "",
          closeModal: true
        },
        cancel: {
          text: "Cancel",
          value: false,
          visible: true,
          className: "",
          closeModal: true,
        }
      }
     });

Example 3: swal change confirm button class

Swal.fire({
    title: 'example text',
    buttonsStyling: false,
    customClass: {
    	confirmButton: 'example-class' //insert class here
    }
})