有没有IE11兼容的变通方法让Vue在for循环中为每个项目呈现多个表行？

<template>
  <table>
    <tbody>
      <tr v-for="item in flattenedItems" :key="item.id">
        <td>{{ item.name }}</td>
        <td>{{ item.description }}</td>
      </tr>
    </tbody>
  </table>
</template>

<script>
export default {
  data() {
    return {
      items: [
        {
          id: 1,
          name: 'Item 1',
          description: 'Description 1',
          rows: [
            { id: 1, value: 'Row 1' },
            { id: 2, value: 'Row 2' },
            { id: 3, value: 'Row 3' }
          ]
        },
        // Other items...
      ]
    };
  },
  computed: {
    flattenedItems() {
      const flattened = [];
      this.items.forEach(item => {
        item.rows.forEach(row => {
          flattened.push({
            id: item.id,
            name: item.name,
            description: item.description,
            rowId: row.id,
            rowValue: row.value
          });
        });
      });
      return flattened;
    }
  }
};
</script>

<template>
  <table>
    <tbody>
      <tr v-for="item in items" :key="item.id">
        <td>{{ item.name }}</td>
        <td>{{ item.description }}</td>
        <td v-html="generateRows(item)"></td>
      </tr>
    </tbody>
  </table>
</template>

<script>
export default {
  data() {
    return {
      items: [
        {
          id: 1,
          name: 'Item 1',
          description: 'Description 1',
          rows: [
            { id: 1, value: 'Row 1' },
            { id: 2, value: 'Row 2' },
            { id: 3, value: 'Row 3' }
          ]
        },
        // Other items...
      ]
    };
  },
  methods: {
    generateRows(item) {
      let html = '';
      item.rows.forEach(row => {
        html += `<tr><td>${item.name}</td><td>${item.description}</td><td>${row.value}</td></tr>`;
      });
      return html;
    }
  }
};
</script>