如何打印由火力地堡服务作为数组返回的对象（控制台） [英] How to print object returned by Firebase service as array (to the console)

问题描述

我采用了棱角分明+火力地堡堆栈。

I am using Angular + Firebase stack.

我想转换由火力地堡返回的对象：

I would like to convert object returned by Firebase:

到阵列，因此可以在这样的控制台被打印

into the array so it can be printed in the console like this:

 [ {object}, {object}, {object}, {object}, {Object} ];

我知道如何使用模板orderByPriority滤镜，但我不知道如何使用它的内部控制器？

I know how to use "orderByPriority" filter in template but I don't know how to use it inside controller?

推荐答案

如果要打印返回的对象数组到控制台，您需要申请 orderByPriority 过滤器（因为你已经发现了），并使用 $ watchCollection 来监视更改（如数据返回异步）

If you want to print an array of returned objects to the console, you need to apply orderByPriority filter (as you already found out) and use $watchCollection to watch for changes (as data are returned asynchronously):

    $scope.$watchCollection('messages', function() {
      console.log(orderByPriorityFilter($scope.messages));   
    });  

您可以看看这个 Plunker 工作方案。

You can check out the working solution in this Plunker.

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