JS数据处理：从一个多属性的对象数组中，1.筛选出两条属性，2.其中一条属性内容转换成中文，3.两条属性名转换成value和label

1.未处理前的原数据

2.处理后的数据

[ {"label": "培训教室","value": "教学"},
  {"label": "考试大厅", "value": "考试" },
 {"label": "共享自习室", "value": "培训" },
 {"label": "图书馆X", "value": "教学" } ]

3.步骤一：将appointType、appointName筛选出来，放入tempList、tempList1数组

response.forEach((item) => {
  tempList.push(item.appointName)
})
response.forEach((item) => {
  tempList1.push(item.appointType)
})
console.log("tempList:", tempList)
console.log("tempList1:", tempList1)

4.步骤二：将tempList、tempList1数组，转换成obj、obj1对象数组

let obj = {}
for (let key in tempList) {
  obj[key] = tempList[key]
}
let obj1 = {}
for (let key in tempList1) {
  obj1[key] = tempList1[key]
}
console.log("obj:", obj)
console.log("obj1:", obj1)

5.步骤三：将obj、obj1对象数组，合并成newObj1对象数组，并且赋予新的属性名label

let newObj1 = Object.keys((obj, obj1)).map((val, val1) => ({
  label: obj[val],
}))

6.步骤四：将appointType属性内容的英文，转换成value属性内容的中文，在上面基础上添加。核心就是多条三元表达式判断，普通ifelse语句，语法上不通过，妈的！也是犯病了。

let newObj1 = Object.keys((obj, obj1)).map((val, val1) => ({
  label: obj[val],
  value: obj1[val1] == "TEACH" ? "教学"
    : obj1[val1] == "EXAM" ? "考试"
      : obj1[val1] == "DRILL" ? "训练"
        : obj1[val1] == "TRAIN" ? "培训"
          : obj1[val1] == "MINUTE" ? "会议"
            : obj1[val1] == "STUDY" ? "自习"
              : obj1[val1] == "OTHER" ? "其他"
                : "未定义",
}))
// 下拉列表，赋值，打印
this.appointmentUnitRecord_options1 = newObj1
console.log("this.appointmentUnitRecord_options1", this.appointmentUnitRecord_options1)

 7.完整JS数据处理代码展示

handleAppointmentUnitRecordAdd() {
        this.reset_appointmentUnitRecord_form()
        this.appointmentUnitRecord_open = true
        this.appointmentUnitRecord_title = '新增'

        let tempList = []
        let tempList1 = []

        get_appointmentUnit_names().then(response => {
          response.forEach((item) => {
            tempList.push(item.appointName)
          })
          response.forEach((item) => {
            tempList1.push(item.appointType)
          })
          console.log("tempList:", tempList)
          console.log("tempList1:", tempList1)

          
          let obj = {}
          for (let key in tempList) {
            obj[key] = tempList[key]
          }
          let obj1 = {}
          for (let key in tempList1) {
            obj1[key] = tempList1[key]
          }
          console.log("obj:", obj)
          console.log("obj1:", obj1)
          
          
          let newObj1 = Object.keys((obj, obj1)).map((val, val1) => ({
            label: obj[val],
            value: obj1[val1] == "TEACH" ? "教学"
              : obj1[val1] == "EXAM" ? "考试"
                : obj1[val1] == "DRILL" ? "训练"
                  : obj1[val1] == "TRAIN" ? "培训"
                    : obj1[val1] == "MINUTE" ? "会议"
                      : obj1[val1] == "STUDY" ? "自习"
                        : obj1[val1] == "OTHER" ? "其他"
                          : "未定义",
          }))

          // 新增，下拉列表
          this.appointmentUnitRecord_options1 = newObj1
          console.log("this.appointmentUnitRecord_options1", this.appointmentUnitRecord_options1)
        })

      },