swal show loading on confirm 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 bootstrap

Swal.fire(  'Good job!',  'You clicked the button!',  'success')