(Vue.js)对表格进行排序后保留项目的详细信息视图

<template>
  <div>
    <table>
      <thead>
        <tr>
          <th @click="sortTable('name')">Name</th>
          <th @click="sortTable('age')">Age</th>
          <th @click="sortTable('email')">Email</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in sortedData" :key="item.id">
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.email }}</td>
        </tr>
      </tbody>
    </table>
    <div v-if="selectedItem">
      <h2>{{ selectedItem.name }}</h2>
      <p>Age: {{ selectedItem.age }}</p>
      <p>Email: {{ selectedItem.email }}</p>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      data: [
        { id: 1, name: 'John', age: 25, email: 'john@example.com' },
        { id: 2, name: 'Alice', age: 30, email: 'alice@example.com' },
        { id: 3, name: 'Bob', age: 20, email: 'bob@example.com' }
      ],
      sortKey: '',
      sortOrder: 'asc',
      selectedItem: null
    };
  },
  computed: {
    sortedData() {
      const data = [...this.data];
      if (this.sortKey) {
        data.sort((a, b) => {
          const aValue = a[this.sortKey];
          const bValue = b[this.sortKey];
          if (aValue < bValue) return this.sortOrder === 'asc' ? -1 : 1;
          if (aValue > bValue) return this.sortOrder === 'asc' ? 1 : -1;
          return 0;
        });
      }
      return data;
    }
  },
  methods: {
    sortTable(key) {
      if (this.sortKey === key) {
        this.sortOrder = this.sortOrder === 'asc' ? 'desc' : 'asc';
      } else {
        this.sortKey = key;
        this.sortOrder = 'asc';
      }
    },
    showDetails(item) {
      this.selectedItem = item;
    }
  }
};
</script>