我正在创建一个重复的标题列表,其中可以包含无限量的嵌套标题。我的测试数据如下:
使用ng-repeat我试图让表单看起来像这样:
WebDriverWait wait = new WebDriverWait(driver, timeOut);
wait.until(ExpectedConditions.elementToBeClickable(locator));
我想出了代码JSFiddle当我运行它时,我得到一个无限循环。感谢您是否可以获得有关如何获得上述结果的帮助,请提前感谢!
我的JsFiddle。 JsFiddle
答案 0 :(得分:2)
您可以通过以下两个关键步骤完成此操作:
ng-include
呈现此嵌套结构这是标记:
<div ng-controller="mainCtrl">
<button ng-click="listFn()">Generate list</button>
<ul>
<li ng-repeat="heading in headings" ng-include="'subheader'"></li>
</ul>
</div>
<script type="text/ng-template" id="subheader">
<span class="number">{{heading.id}}</span>
<span class="heading">{{heading.text}}</span>
<ul>
<li ng-repeat="heading in heading.children" ng-include="'subheader'"></li>
</ul>
</script>
这是控制器代码。请注意,我使用功能强大的Lodash库来简化这一过程:
function mainCtrl($scope) {
$scope.data = [{
head_id: 'Background',
parent_head_id: 0,
sort_order: 1
},
// ... more here ...
{
head_id: 'State Legal Requirements',
parent_head_id: 'Legal Requirements',
sort_order: 1
}]
$scope.listFn = function () {
var byParentHeadId = _.groupBy($scope.data, 'parent_head_id');
function headingLevel(parent_head_id, levelPrefix) {
return _.chain(byParentHeadId[parent_head_id])
.sortBy('sort_order')
.map(function (heading, index) {
var id = levelPrefix ? levelPrefix + '.' + (index + 1) : '' + (index + 1);
return {
id: id,
text: heading.head_id,
children: headingLevel(heading.head_id, id)
};
})
.value();
}
$scope.headings = headingLevel(0, '');
}
}
您可以在行动in this jsFiddle中看到它。