Javascript问题与开发信用卡时间表的代码

我正在制定信用卡贷款的摊销计划。在运行我编写的代码时，我总是遇到这样或那样的错误。这是“意外标识符”，我似乎找不到它的位置

请帮助我更好地整理代码，以便它能够运行计划

function displayWelcome() {
 var balance = 1500;
 var interest = 0.18;
 var minimumpaymentRate = 0.02;
 console.log("Welcome! \nThis program will determine the time to pay off 
 a 
 credit card and the interest paid based on the current balance, the 
 interest rate, and the monthly payments made.")
 console.log("Balance on your credit card: $" + balance.toFixed(2))
 console.log("Interest Rate: " + (interest * 100) + "%")
 console.log("Assuming a minimum payment of 2% of the balance ($20 min)")
 console.log("Your minimum payment would be: $" + minimumPaymentment)
 console.log("\nYear    Balance     Payment #     Interest Paid      
 Minimum Payment")
 }

function calculateminimumPaymentment(balance, minimumPaymentRate) {
 return Math.max(20, balance * minimumPaymentRate);
}

function generatePaymentId() {
 var count = 0;
 function paymentId() {
  count ++;           
  return count;
 }
return paymentId;
};

function processPaymentSchedule(balance, interest, minimumPayment) {
 var id = generatePaymentId();
 var year = 1;
 var payments = 1;
 var interestPaid = 0;
 var yearChange;

 while (balance > 0) {
 yearChange = false;

 if (payments % 12 == 0) {
  year++
  yearChange = true;
 }
 interestPaid += balance * interest / 12;
 balance = Math.max(0, balance - (minimumPayment - balance * interest / 
 12));
 minimumPayment = Math.max(20, balance * minimumPaymentRate);
 payments++;
 }
}

function displayPayment(pmt){
 var pmt = {
 balance: 1500,
 minimumPaymentRate: 0.02,
 interest: 0.18
 console.log((yearChange ? year:" ") + "        " + pmt.balance + "      
 " 
 + payments + "              " + pmt.interest + "             " + 
 pmt.minimumPaymentRate);
    return displayPayment
    };
}

displayWelcome()

processPaymentSchedule(balance, interest, minimumPayment);

预期结果应为：

显示：年度、余额、利息的摊销计划

更新：

我已经更新了下面列出的建议，但现在出现了以下错误：

---

您的代码确实有问题。有几个错误：

• 应使用``而不是引号创建多行字符串
• 函数displayPayment：移动console.log并返回对象外部
• 在函数外声明余额、利息、最低付款额，以便您可以使用这些变量

可能的副本。之所以会出现错误，是因为JS

“

和

”

字符串文本在默认情况下不是多行的。