如何更改 JSON 巢狀數組屬性'project_id”與'project_name”

Question

問題：

[
{
"project_id": 1,
"project_name": "CDP",
"role": "PL"
},
{
"project_id": 2,
"project_name": "Admincer",
"role": "PM"
},

我想使用某種方法將上述三個屬性中的「project_id」屬性加入到另一個陣列中。

我的想法是： 1.首先，如果我可以將此數組的「project_id」屬性複製到第二個嵌套 JSON 數組，那就可以了。

我查到的內容：

const obj = {
"project_id": 1,
"project_name": "CDP",
"role": "PL"
};;
const objCopy = {
"start_time": "09:00:00",
"end_time": "18:00:00",
"rest_time": "01:00:00",
"worked_time": "08:00:00",
"is_wfh": true,
"id": 1, 1,
"work_day_id": 45,
"time_cards": [
{
... obj
}
]
};;
console.log (objCopy);

我發現我可以這樣複製它。 我在 Chrome 控制台中嘗試了上面的程式碼。 數組被複製，但整個物件被複製。我只想複製project_id的屬性。

我想在此陣列中建立一個名為「prj_name」的新屬性，並在 Vuetify 中僅顯示該屬性。

async fetchWorkerTimeCard() {
  try {
    this.worker_data = [] 
    await this.$axios.$get('/worker_time_card', {
      params: {
        work_date: this.calendarVal
      }
    }).then(data => {
      this.worker_data = data
    })
    var projects = await this.fetch_worker_projects()
    console.log(projects)
  } catch (error) {
    console.log(error)
    this.worker_data = []
  }
},

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.5/vue.js"></script>
<v-card>
  <v-data-table v-if="worker_data.time_cards" :headers="headers2" :items="worker_data.time_cards"></v-data-table>
</v-card>

Answer 1

您可以像 JS 中的任何其他物件一樣簡單地更改物件資料。

const obj = {
  "project_id": 1,
  "project_name": "CDP",
  "role": "PL"
};

const objCopy = {
  "start_time": "09:00:00",
  "end_time": "18:00:00",
  "rest_time": "01:00:00",
  "worked_time": "08:00:00",
  "is_wfh": true,
  "id": 1,
  "work_day_id": 45
}

console.log({...obj, ...objCopy})

這將建立 1 個合併的物件。

或者，如果您只想 project_id 值，則只需將其變更為：

objCopy.project_id = obj.project_id