Alert MVC Viewbag POPUP Confirm Message Box With Javascript

Can this alert show before there's a redirect in the controller?

if spring boot means how?

really useful thank you so much

ty a lot

how come nothing is showing in mine?

useful bro I got exactly wt I have searched for

Finally found something that Works! Thanks!

Useful

Thanks for sharing .

thankyou soo much buddy u made my day!

Thanks a lot, I wanto to use this but instead i Want to use SweetAlert, could you help me?