angularjs - 为什么 Angular ng-options 值包含值数据类型？

Question

在我使用 Angular 指令后的伙计们 ng-选项我得到了这个结果

<select name="users" id="users" ng-options="user.id as user.name for user in users" ng-model="user">
    <option value="number:1" label="Developers">Ahmed</option>
    <option value="number:2" label="Designers">Jon</option>
    <option value="number:3" label="HR">Astm</option>
    <option value="number:4" label="Doctor">Fady</option>
</select>


<select name="colors" id="colors" ng-options="color.code as color.name for color in colors" ng-model="color">
    <option value="string:ff0000" label="Developers">Red</option>
    <option value="string:ffffff" label="Designers">White</option>
    <option value="string:000000" label="HR">Black</option>
</select>

为什么选项值包含数据类型如 数量:1 或 字符串:ffffff ??

如何从中删除数据类型并仅保留值？

Answer 1

添加 track by [id]末ng-options .

在您的情况下，它将是:

ng-options="user.id as user.name for user in users track by user.id"

和

ng-options="color.code as color.name for color in colors track by color.code"