如何為每個新的 object 將其推入數組，避免覆蓋？ JavaScript

Question

我有一個 function，它根據價格、月份和利率計算貸款，然后創建貸款數據的 object。

let ratae = list.map((rata) => rata.NKS);
let prr = article.price;
let price = parseFloat(prr.replace(/\.| ?€$/g, '').replace(',', '.'));

for (i = 0; i < ratae.length; i++) {
  loan = new LoanJS.Loan(price, 2, ratae[i]);
  console.log(loan);
}
res.status(200).json(loan);

所以問題是每次獲取新的ratae[i]時，貸款都會覆蓋它自己。 console.log(loan)看起來像這樣：

{ installments:
   [ { capital: 162222.19,
       interest: 1113.13,
       installment: 163335.32,
       remain: 162777.81,
       interestSum: 1113.13 },
     { capital: 162777.81,
       interest: 557.51,
       installment: 163335.32,
       remain: 0,
       interestSum: 1670.64 } ],
  amount: 325000,
  interestSum: 1670.64,
  capitalSum: 325000,
  sum: 326670.64 }
{ installments:
   [ { capital: 162233.67,
       interest: 1067.08,
       installment: 163300.75,
       remain: 162766.33,
       interestSum: 1067.08 },
     { capital: 162766.33,
       interest: 534.42,
       installment: 163300.75,
       remain: 0,
       interestSum: 1601.5 } ],
  amount: 325000,
  interestSum: 1601.5,
  capitalSum: 325000,
  sum: 326601.5 }

所以我在 postman 中的回復只會是最后一installments 。 我需要某種循環，對於每筆新的分期付款（或每筆新貸款）都將其推送到數組/對象中，那么我想要的 output 將是：

{ installments:
   [ { capital: 162222.19,
       interest: 1113.13,
       installment: 163335.32,
       remain: 162777.81,
       interestSum: 1113.13 },
     { capital: 162777.81,
       interest: 557.51,
       installment: 163335.32,
       remain: 0,
       interestSum: 1670.64 } ],
  amount: 325000,
  interestSum: 1670.64,
  capitalSum: 325000,
  sum: 326670.64 }, //here to add comma or something else to create new object or array of installments
{ installments:
   [ { capital: 162233.67,
       interest: 1067.08,
       installment: 163300.75,
       remain: 162766.33,
       interestSum: 1067.08 },
     { capital: 162766.33,
       interest: 534.42,
       installment: 163300.75,
       remain: 0,
       interestSum: 1601.5 } ],
  amount: 325000,
  interestSum: 1601.5,
  capitalSum: 325000,
  sum: 326601.5 }

還有完整的 function 這部分位於： https://jsfiddle.net/a5jk3fy7/ 在 jsfiddle上查看它，以防止這篇文章中的代碼過多。

任何解決方案的想法？ 謝謝。

Answer 1

我不確定，但看起來您的問題可能是由於在異步 function （獲取）中使用全局綁定（ i ）作為計數器。

如果您inside循環中聲明let i = 0 （類似於下面的簡單示例），問題 go 會消失嗎？

 let ratae = [1, 2, 3]; for (let i = 0; i < ratae.length; i++) { const loan = { detail: ratae[i] }; console.log(loan); }

Answer 2

嘗試這樣的事情：

const loan = list.map((rata) =>
     LoanJS.Loan(price, 2, rata.NKS)
);

就像您帖子中的評論一樣，您正在壓倒loan 。 有了這個 u rata並且對於每個比率你插入新的loan條目