Angular生成多重ng重复

Question

在我的角度应用程序（角度1.4.9）中，我遇到了一个问题，当我这样做时会生成多个ng-repeats：

HTML：

<div class="form-group col-md-3">
  <input ng-model="main.startLocation" ng-change="main.getAddressSuggestions(main.startLocation, 'startLocation')" type="text" class="form-control input-lg" placeholder="fx. Aarhus" tabindex=1 name="country" [![enter image description here][1]][1] />

  <label>or select a location from list:</label>
  <div ng-repeat="suggestion in main.startLocationSuggestions">
    <span>{{suggestion}}</span>
  </div>

</div>

controller.js

getAddressSuggestions(address, inputName) {
  if (inputName === "startLocation") {

    /*                  var tmpArray = data;
     for(var item of tmpArray)
     this.startLocationSuggestions = data;*/
    this.startLocationSuggestions = ['dada', 'daa'];
  }
}

但是dom中生成的HTML是：

为什么角重复ng重复？

Answer 1

这基本上是ng-repeat的工作原理！  在一开始它写了一个评论，如：

<!-- ngRepeat: x in items -->

然后对于使用ng-repeat创建的每个元素，在创建它之后（使用ng-repeat attribite），写下另一条评论：

<!-- end ngRepeat: x in items -->

Answer 2

因为它只需要你的模板（div ng-repeate lalala），克隆它N次，填充数据并放入DOM。

Answer 3

如果你不想重复父元素，这里是html：

<div >
  <span ng-repeat="suggestion in startLocationSuggestions">{{suggestion}}</span>
</div>

输出将为：

<div>
  <!-- ngRepeat: suggestion in startLocationSuggestions -->
  <span ng-repeat="suggestion in startLocationSuggestions" class="ng-scope ng-binding">dada</span>
  <span ng-repeat="suggestion in startLocationSuggestions" class="ng-scope ng-binding">daa</span>
</div>

这就是ngRepeat的工作方式。