这是一个JSON格式的示例，其中我使用的是基于相关问题的过滤器。
请告诉我如何获取组件数组？
除最后一个过滤器外，其他所有功能都正常运行。
$scope.items = [
{
family: "external_ip",
releases: [
{
release: "eip_operations",
components: ["ip.disclourse", "ip.irr"]
},
{
release: "eip_purchase",
components: ["ip.hard", "ip.soft"]
}
]
},**strong text**
{
family: "eda_licensing",
releases: [
{
release: "elm",
components: ["service.licnse_elm"]
},
{
release: "denial",
components: ["service.license_denial"]
}
]
}
];
这是视图
<div style="margin-right: 10px">
<div>
<label>Family</label>
</div>
<div class="form-group">
<div>
<select id="selectjs" class="form-control" ng-model="selectedFamily" ng-options="item.family as item.family for item in items">
<option value="">Select a family</option>
</select>
</div>
</div>
</div>
<div >
<div>
<label>Release</label>
</div>
<div class="form-group">
<select class="form-control" id="Select1" ng-model="selectedRelease" ng-disabled="!selectedFamily" ng-options="r.release as r.release for r in ((items | filter:{family:selectedFamily})[0].releases)">
<option value="">Select a release</option>
</select>
</div>
</div>
<div >
<div>
<label>Component</label>
</div>
<div class="form-group">
<select class="form-control" id="year" ng-model="selectedComponent" ng-disabled="!selectedRelease" ng-options="component as component for component in ((items | filter:{family:selectedFamily}| filter:{releases:selectedRelease})[0].components)">
<option value="">Select a component</option>
</select>
</div>
</div>
<div>
<div>
<label>Priority</label>
</div>
<div class="form-group">
<select class="form-control" id="quarter" ng-model="selectedPriority">
<option>All</option>
<option>1-showstopper</option>
<option>2-high</option>
<option>3-medium</option>
<option>4-low</option>
</select>
</div>
</div>
<div>
<div>
<br />
<button type="submit" class="btn btn-info center-block" id="filterBtn" style="float: left;">Apply Filter</button>
</div>
</div>
<!-- <div class="row">
<div class="col-lg-12">
<p class="pull-right">
<button type="submit" class="btn btn-info btn-block" id="filterBtn">Apply Filter</button>
</p>
</div>
</div> -->
</form>
我想在selectedComponent中检索组件。