在角度控制器中迭代嵌套的json数组并获取唯一值

Question

我需要迭代嵌套的json数组,看起来像那样

[
  {
    "title": "EPAM",
    "technologies": [
        "PHP",
        ".net",
        "Java",
        "Mobile",
        "Objective-C",
        "Python",
        "Ruby"
    ],
    "location": "Belarus",
    "city": "Minsk" 
  },
  {
    "title": "Parallels",
    "technologies": [
        "PHP",
        "Java",
        "C++",
        "iOS Development",
        "C#",
        "Ember.js"
    ],
    "location": "Russia",
    "city": "Moscow" 
  }
]

我想要的是遍历每个公司的技术列表,然后返回一个唯一值列表.但是,我无法访问控制器中公司阵列中的单个公司.到目前为止看起来像这样

var app = angular.module('app', []);

app.controller('CompaniesController', ['$scope', '$http', 
  function($scope, $http) {
    $http.get('json/companies.json').success(function(data) {
        $scope.companies = data; // get data from json

        $scope.techStack = []

        $scope.companies = data.query(function(companies) {
            console.log(companies); //I expected to see data here
        });
    });

  }
]); 

显然我做错了什么.

Answer 1

使用angular's forEach:

 var app = angular.module('app', []);
    app.controller('CompaniesController', ['$scope', '$http', 
      function($scope, $http) {
        $http.get('json/companies.json').success(function(data) {
            $scope.companies = data; // get data from json
              angular.forEach($scope.companies, function(item){
                   console.log(item.technologies);  
               })
            });
        });

      }
    ]); 

Answer 2

如果您只需要在UI上显示嵌套数组,您可以直接在视图中执行此操作,例如

            <tr ng-repeat="i in Items">
                <td valign="top">{{i.Value}}</td>
                <td valign="top">
                    <table>
                        <tr ng-repeat="c in i.Children">
                            <td>{{c.Value}}</td>
                        </tr>
                    </table>
                </td>
            </tr>