通过嵌套ng-repeat中的键访问对象

Question

是否无法使用ng-repeat中的键访问另一个对象的值？

$scope.top = {{assignment:'keyOne'}...};
$scope.first = {1: { keyOne: {a:'b'}}, 2: {keyOne:{b:'c'}}};
$scope.firstKeys = [1,2]; // built from Object.keys($scope.first); 

[$scope.top包含对象的对象，我遍历$scope.top，试图将assignment属性的值用作键：

<span ng-repeat="line in top>
    <span ng-repeat "key in firstKeys">
      {{first[key][line.assignment]}}
    </span>
</span>

在上面的示例中，我希望{{first[key][line.assignment]}}可以打印出$scope.first中的两个对象，但实际上这似乎并不起作用。

这可能吗，还是这里有更好的使用方法？

Answer 1

您的代码包含许多错误记录和错误，以下代码有效：

  $scope.top = [{assignment:'keyOne'}];
  $scope.first = {1: { keyOne: {a:'b'}}, 2: {keyOne:{b:'c'}}};
  $scope.firstKeys = [1,2]; // built from Object.keys($scope.first);


   <span ng-repeat="line in top>
    <span ng-repeat "key in firstKeys">
      {{first[key][line.assignment]}}
    </span>
  </span>

输出：{“ a”：“ b”} {“ b”：“ c”}