Review JavaScript Code

code_review.js

function receipt(order) {
  var p;
  switch (order.payment_type) {
    case "creditcard":
      p = "Payment info: " + order.payment.getCardType + " " + order.payment.card_number; //card type(VISA/MasterCard etc.) and number)
      break;
    case "paypal":
      p = "Payment info: " + order.payment.paypal_info;
      break;
    case "manual":
      p = "Payment info: " + order.payment.manual_payment_info;
      break;
    case "free":
      p = "Payment info: This order was free!"; //Free order or promotional item
      break;
    default:
      p = "Payment info: " + order.payment.default_payment_info;//default order info 
      
    if (order.payment_type != "free") {
      p = p + "<p> was charged " + order.amount_in_dollars + "$" + "</p>";
    }
   
    html = "<p>" + "Your order of " + order.products.name + " has been received" + "</p>" + "<p>" + p + "</p>";
    document.write("<h1> Order receipt details </h1>" + html);
      
  }
}