payment.js

let payment=document.querySelector("form");
 
let Bag=JSON.parse(localStorage.getItem("pay"))||[]
payment.addEventListener("submit",function(event){
    event.preventDefault();
    
let obj={
    email:payment.Email.value,
    mobile:payment.mobile.value,
    pass:payment.pass.value
    }
    Bag.push(obj)
    if (obj.email == "" || obj.mobile == "" || obj.pass == "") {
       alert(" please  fill correct card  details")
    } else {
        
        localStorage.setItem("pay", JSON.stringify(Bag))
        alert("your payment has been successfull 🎉 ")
        window.location.href = "index.html";

   }
   

   

})