javascript - ng-repeat 2層循環

Question

<li ng-repeat="a in b">
<a>{{a.id}}</a> //这里是循环数组出id
<ul>
    <li ng-repeat="">{{}}</li> //这里该怎么循环出arr的name？
</ul>
</li>

資料結構

[
{"id":1,
  "ps":1,
  "arr":[{"name":2,"user":13},{"name":3,"user":24}]
},
{"id":2,
 "ps":2,
 "arr":[{"name":4,"user":34},{"name":5,"user":45}]
}
]

Answer 1