Question

我有一个对象对象，我想更改对象的键

"opening_hours": {
  "0": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "1": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "2": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "3": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "4": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "5": {
    "is_open": false
  },
  "6": {
    "is_open": false
  }
}

喜欢：“ 0”，我希望它是“星期一”，这在Java语言中可能吗？

预期输出为：

{
  "monday": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "tuesday": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "wednesday": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "thursday": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "friday": {
    "close": "17:00:00",
    "is_open": true,
    "open": "09:00:00"
  },
  "saturday": {
    "is_open": false
  },
  "sunday": {
    "is_open": false
  }
}

Answer 1

创建一个days数组，该数组的项目索引与日期相同（例如：0的{{1}}，依此类推）。像这样循环遍历monday对象的键，并将新的键值对添加到输出中：

opening_hours

您也可以map对象的entries并将数字更新为const days = ["monday","tuesday","wednesday","thursday","friday","saturday","sunday"], opening_hours = {"0":{close:"17:00:00",is_open:true,open:"09:00:00"},"1":{close:"17:00:00",is_open:true,open:"09:00:00"},"2":{close:"17:00:00",is_open:true,open:"09:00:00"},"3":{close:"17:00:00",is_open:true,open:"09:00:00"},"4":{close:"17:00:00",is_open:true,open:"09:00:00"},"5":{is_open:false},"6":{is_open:false}}, output = {}; for(const key in opening_hours) output[days[key]] = opening_hours[key]; console.log(output)以获取字符串。然后使用Object.fromEntries()创建一个新对象。

days[number]

修改JavaScript中的对象键

1 个答案: