javascript - 嵌套的 ng-repeat-start/ng-repeat-end

Question

ng-repeat-start/ng-repeat-end 用于在不渲染父元素的情况下循环数据 [Portal to Docs] .就我而言，我想在没有额外元素的情况下在嵌套的 ng-repeat-start/ng-repeat-end block 中显示数据。

我尝试将两个 ng-repeat-start 指令放入同一个元素中，但无法正确显示。我以某种方式想出了一个解决方法，如下所示 [Portal to Demo] .对于这种情况有更好的解决方案吗？

数据

[{
    name: 'Chapter 1',
    sections: [{
        name: '1-1',
        words: 1024
    }, {
        name: '1-2',
        words: 512
    }]
}, {
    name: 'Chapter 2',
    sections: [{
        name: '2-1',
        words: 2048
    }, {
        name: '2-2',
        words: 256
    }]
}]

html

<tr class="tr-for" ng-repeat-start="chapter in main.book"></tr>
  <tr ng-repeat-start="section in chapter.sections" ng-repeat-end>
    <td>{{chapter.name}}</td>
    <td>{{section.name}}</td>
    <td>{{section.words}}</td>
  </tr>
<tr class="tr-end" ng-repeat-end></tr>

CSS

tr.tr-for,
tr.tr-end {
  display: none;
}

Answer 1

您的内部 ng-repeat 应该是常规的 ngRepeat:

<tr class="tr-for" ng-repeat-start="chapter in main.book"></tr>
    <tr ng-repeat="section in chapter.sections">
        <td>{{chapter.name}}</td>
        <td>{{section.name}}</td>
        <td>{{section.words}}</td>
    </tr>
<tr class="tr-end" ng-repeat-end></tr>

更新

尝试在 tbody 标签内使用第一个 ngRepeat:

<tbody ng-repeat="chapter in main.book">
  <tr ng-repeat-start="section in chapter.sections" ng-repeat-end>
    <td>{{chapter.name}}</td>
    <td>{{section.name}}</td>
    <td>{{section.words}}</td>
  </tr>
</tbody>