javascript - Vue.js 从数组中弹出一个嵌套对象

Question

在快速仪表盘上工作，我想从 departments_by_dept_emp 中删除第二个对象。如何使用 Vue 最好地实现这一点？

HTML

<tbody id="rows" v-for="result in results">
   <tr>
     <td>{{ result.first_name }} {{ result.last_name }}</td>
     <td v-for="department in result.departments_by_dept_emp">{{ department.dept_name }}</td>
     <td>{{ result.hire_date }}</td>
     <td>{{ result.birth_date }}</td>
   </tr>
</tbody>

JavaScript

   {
   "emp_no": 10010,
      "birth_date": "1963-06-01",
      "first_name": "Duangkaew",
      "last_name": "Piveteau",
      "gender": "F",
      "hire_date": "1989-08-24",
      "departments_by_dept_emp": [
        {
          "dept_no": "d004",
          "dept_name": "Production"
        },
        {
          "dept_no": "d006",
          "dept_name": "Quality Management"
        }
      ]
    }

axios调用获取的数据存储在一个空数组中

data () {
    return {
      results: [],
    }
}

Axios 调用

getData() {
      this.loading = true

      axios.get('https://url', { 'headers': { 'Api-Key': '' } })
          .then(response => {
            this.results = response.data.resource
            this.next = response.data.meta.next
            this.loading = false
            console.log(response.data.resource)
          })
          .catch(error => {
            console.log(error)
          })
      }

所以从这个例子来看，基本上我只想要生产部门名称并从我的表中删除质量管理。我不相信 slice() 会成功，因为它只会克隆一个维度。此外，任何类似 splice() 或 findIndex 的东西我都会收到错误“无法读取未定义的属性‘{example}’””

Answer 1

如果只想显示数组中的元素，可以传递要显示的元素的索引

var app = new Vue({
  el: '#app',
  data: {
    results:  [{
      "emp_no": 10010,
      "birth_date": "1963-06-01",
      "first_name": "Duangkaew",
      "last_name": "Piveteau",
      "gender": "F",
      "hire_date": "1989-08-24",
      "departments_by_dept_emp": [
        {
          "dept_no": "d004",
          "dept_name": "Production"
        },
        {
          "dept_no": "d006",
          "dept_name": "Quality Management"
        }
      ]
    }]
  }
})

<script src="https://unpkg.com/vue"></script>
<div id="app">
  <table>
    <tbody id="rows" >
      <tr v-for="result in results">
        <td>{{ result.first_name }} {{ result.last_name }}</td>
        <td>{{ result.departments_by_dept_emp[0].dept_name }}</td>
        <td>{{ result.hire_date }}</td>
        <td>{{ result.birth_date }}</td>
      </tr>
    </tbody>
  </table>
</div>

希望这对你有用。