Return Statement在Angualr沒有爲一個對象工作

Question

漂亮的基本東西...似乎它應該工作，但沒有

這兩個控制檯日誌吐出正確的信息。

$scope.getCurrentAttachment = function() { 
    angular.forEach(attachments, function(attachment) { 
    console.log(attachment); 
    if(attachment.active) { 
     console.log(attachment); 
     return attachment; 
    } 
    }); 
}; 

但後來該文件調用它輪流不確定

$scope.save = function() { 
    console.log($scope.getCurrentAttachment()); 
    var data = [$scope.labels.selected, $scope.getCurrentAttachment()]; 
    console.log(data); 
    $uibModalInstance.close(data); 
}; 

任何幫助將大大appriciated。我不知道爲什麼這不起作用

Answer 1

$scope.getCurrentAttachment = function() { 
    angular.forEach(attachments, function(attachment) { 
    console.log(attachment); 
    if(attachment.active) { 
     console.log(attachment); 
     return attachment; 
    } 
    }); 
}; 

您在這裏擁有的return條款，是針對angular.forEach功能，而不是爲getCurrentAttachment。

您可以使用Array ptototype的.filter函數執行以下操作。

$scope.getCurrentAttachment = function() { 
    var filteredArray = [] 
    filteredArray = attachments.filter(function(attachment) { 
    console.log(attachment); 
    return attachment.active; 

    }); 
    return filteredArray ; 
};