如何从ng-repeat获得综合结果？

See this plunker.

看到这个plunker。

<div ng-repeat="subCategory in subCategorys | filter:{tags:tag}:true | orderBy:'id'">
      {{subCategory.id}} {{subCategory.name}} {{subCategory.tags}}
      <br/><br/>
      You are now seeing details of <span ng-init="subCats = subCats + ' '  + subCategory.name">{{subCats}}</span>
    </div> 
<div ng-rep