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为货币数据数组重新分配键名,构建货币转换专用新数组

转换JSON货币数据为新结构数组

没问题,我帮你搞定这个货币数据结构转换的事儿~首先先明确下你给的原始JSON数据结构(补全了截断部分):

{
  "eur": {
    "code": "EUR",
    "alphaCode": "EUR",
    "numericCode": "978",
    "name": "Euro",
    "rate": 0.83563518721183,
    "date": "Mon, 7 May 2018 00:00:01 GMT"
  },
  "gbp": {
    "code": "GBP",
    "alphaCode": "GBP",
    "numericCode": "826",
    "name": "U.K. Pound Sterling",
    "rate": 0.73757713865121,
    "date": "Mon, 7 May 2018 00:00:01 GMT"
  }
}

假设你需要将其转换为数组格式,并且重新分配键名(比如把rate改成exchangeRate、name改成currencyName这类更贴合货币转换场景的命名),可以用JavaScript来实现,代码如下:

// 原始货币JSON数据
const originalCurrencyData = {
  "eur": {
    "code": "EUR",
    "alphaCode": "EUR",
    "numericCode": "978",
    "name": "Euro",
    "rate": 0.83563518721183,
    "date": "Mon, 7 May 2018 00:00:01 GMT"
  },
  "gbp": {
    "code": "GBP",
    "alphaCode": "GBP",
    "numericCode": "826",
    "name": "U.K. Pound Sterling",
    "rate": 0.73757713865121,
    "date": "Mon, 7 May 2018 00:00:01 GMT"
  }
};

// 转换为自定义结构的数组
const convertedCurrencyArray = Object.entries(originalCurrencyData).map(([_, currency]) => ({
  currencyCode: currency.code,
  currencyName: currency.name,
  exchangeRate: currency.rate,
  lastUpdated: currency.date,
  // 如果你需要保留其他原始字段,比如numericCode,直接添加即可
  numericCode: currency.numericCode
}));

// 输出转换后的结果
console.log(convertedCurrencyArray);

转换后的数组结构如下(完全符合货币转换操作的使用场景):

[
  {
    "currencyCode": "EUR",
    "currencyName": "Euro",
    "exchangeRate": 0.83563518721183,
    "lastUpdated": "Mon, 7 May 2018 00:00:01 GMT",
    "numericCode": "978"
  },
  {
    "currencyCode": "GBP",
    "currencyName": "U.K. Pound Sterling",
    "exchangeRate": 0.73757713865121,
    "lastUpdated": "Mon, 7 May 2018 00:00:01 GMT",
    "numericCode": "826"
  }
]

关键步骤说明

  • Object.entries():把原始的对象型数据拆分成键值对数组,方便后续遍历处理
  • .map():遍历每个货币条目,按照你需要的键名重新构造对象,你可以根据实际需求修改键名或者增减字段(比如不需要numericCode就删掉对应行,或者添加alphaCode)

内容的提问来源于stack exchange,提问作者pazta

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最近更新时间:2026.05.27 03:48:45