ngOptions与ngModel的非严格比较

Question

有没有办法在print("This is a random message") print("This is another message") print("This is getting boring") <select>中执行非严格比较，以便从模型中设置初始值？例如，如果模型是整数且options键属性是字符串值，则遗憾的是ngOptions初始值未设置。

HTML：

<select>

JS：

<div ng-app="app">
  <div ng-controller="Controller">
    <select data-ng-model="model" data-ng-options="option.id as option.text for option in options"></select>
  </div>
</div>

Answer 1

如果我没弄错，您需要在ng-options中添加“track by”关键字，例如：

    <select data-ng-model="model" data-ng-options="option.id as option.text for option in options track by option.id"></select>