javascript - 如何在 ng-options 中设置默认值

Question

我可以在 angularjs 中设置一个带有默认值的下拉列表，

 <select name="repeatSelect" id="repeatSelect" ng-model="repeatSelect" ng-init=" repeatSelect = data[0].id">
    <option ng-repeat="option in data" value="{{option.id}}">{{option.name}}</option>
 </select>

如何使用 ng-options 实现同样的效果？我用，

 <select name="repeatSelect" 
   id="repeatSelect" 
   ng-model="repeatSelect"
   ng-init=" repeatSelect = option.id"  
   ng-options="option.name for option in data track by option.id">
</select>

但是没有用。 sample fiddle is here

Answer 1

使用 ng-init 为 ng-options 设置默认值。

这是:demo

<select name="repeatSelect" 
   id="repeatSelect" 
   ng-model="repeatSelect"
   ng-init=" repeatSelect = data[0].id"  
   ng-options="option.id as option.name for option in data">          
</select>