Question

我对角度很新。我想在我的ng-options中有一个where子句，如下所示：

select * from currencies where  currency.code in ( 'usd' , 'cad')

<select ng-model="selectedCurrency" ng-options="currency.Name for currency in Currencies | filter:currency.code = 'usd' track by currency.ID">
    <option value="">-- select a currency--</option>
</select>

我只能为一个代码执行此操作，但我想从两个或更多的数组中选择它！

Answer 1

尝试：

ng-options="currency.Name for currency in Currencies track by currency.ID | filter: {code: 'usd'}"

要搜索多个值，您可以使用函数：

$scope.filterCurrencyCodes = function(currency) {
    return (['usd', 'cad'].indexOf(currency.code) !== -1);
};

ng-options="currency.Name for currency in Currencies track by currency.ID | filter: filterCurrencyCodes"

Answer 2

尝试：

ng-options="currency.Name for currency in Currencies track by currency.ID | filter: filterCurrency"

然后创建一种评估货币代码的方法：

$scope.filterCurrency= function(currency){
   if(currency.code == 'USD' || currency.code == 'CAD'){
       return true;
   }
   return false;
};

使用|以角度js过滤ng-options

2 个答案: