Question

我有一个对象数组，它包含一些数据时间值。如何找到带有“日期”的对象键并将值隐式转换为时刻日期时间？

const old = [
    {name: "Ann", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753"},
    {name: "Ben", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753"}
]

首先，我想检查对象键是否具有字符串“ Date”，然后它将对象值转换为moment（value）.format（“ YYYY-MM-DD h：mm：ss a”）< / p>

const new = [
    {name: "Ann", startDate: "2014-11-12 7:45:07am", endDate: "2014-11-13 7:45:07 am"},
    {name: "Ben", startDate: "2014-11-12 7:45:07am", endDate: "2014-11-13 7:45:07 am"}
]

Answer 1

您需要做的就是遍历数组，然后对象值并在键字符串包含Date的情况下更新它们，如您建议使用indexOf函数的条件

const old = [
    {name: "Ann", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753"},
    {name: "Ben", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753"}
]

const res = old.map(obj => {
   return Object.assign({}, ...Object.keys(obj).map((key) => {
      if(key.indexOf("Date") > -1) {
        return {[key]: moment(obj[key]).format("YYYY-MM-DD h:mm:ss a")}
      }else {
        return {[key]: obj[key]}
      }
   }))
})
console.log(res);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>

Answer 2

您可以使用moment.isValid来检查日期是否有效（因为您已经在使用momentjs）：

const old = [{ name: "Ann", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753" }, { name: "Ben", startDate: "2014-11-12T07:45:07.753", endDate: "2014-11-13T07:45:07.753" } ]

let result = old.map(o => {
  Object.keys(o).forEach(k => {
    let d = moment(new Date(o[k]))
    if(d.isValid()) o[k] = moment(d).format("YYYY-MM-DD hh:mm:ss a")
  })
})

console.log(old)

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.js"></script>

然后，您将通过map映射到对象键，并针对每个键检查它们是否指向有效日期。如果是这样，请用moment等进行转换。

如何在对象数组中查找日期？

2 个答案: