如何更改 JSON 嵌套数组属性“project_id”与“project_name”

Question

问题：

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

我想使用某种方法将上述三个属性中的“project_id”属性添加到另一个数组中。

我的想法是： 1.首先，如果我可以将此数组的“project_id”属性复制到第二个嵌套 JSON 数组，那就可以了。

我查到的内容：

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);

我发现我可以这样复制它。 我在 Chrome 控制台中尝试了上面的代码。 数组被复制，但整个对象被复制。我只想复制project_id的属性。

我想在此数组中创建一个名为“prj_name”的新属性，并在 Vuetify 中仅显示该属性。

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 中的任何其他对象一样简单地更改对象数据。

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})

这将创建 1 个合并的对象。

或者，如果您只想 project_id 值，则只需将其更改为：

objCopy.project_id = obj.project_id