javascript - 带有 JSON 对象数组过滤器的 Angular JS Controller

Question

我有以下类型的 JSON，我想查找 JSON 中 Status : 1 的对象数量，我尝试了以下方法，但它不起作用。

我知道 ng-filter 只需要应用于数组，但我没有找到在下面的 JSON 数据中执行此操作的方法，有人可以帮助我

我收到了预期的错误，但在我的情况下如何解决此问题

[filter:notarray] 预期数组但收到:

Plunker Demo

在下面的 JSON 数据中，如您所见，我有带有数组的数组，我应该得到状态值为 1

的计数

预期输出

第一个数组的计数:1第二个数组的计数:3第三个数组的计数:1

JSON 数据

    [
  [{
    "id": 252323,
    "orderId": 223505,
    "status": 1,
    "executedOn": "13/Sep/17",
    "executedBy": "Person A",
    "executedByDisplay": "Person A",
    "cycleId": 3994,
    "cycleName": "Cycle A",
    "versionId": 21291,
    "versionName": "Version A",
    "issueKey": "Key-12561"
  }],
  [{
    "id": 253077,
    "orderId": 224047,
    "status": 1,
    "executedOn": "26/Sep/17",
    "executedBy": "Person B",
    "executedByDisplay": "Person B",
    "cycleId": 4012,
    "cycleName": "Cycle B",
    "versionId": 22912,
    "versionName": "Version B",
    "issueKey": "Key-12580"
  }, {
    "id": 253076,
    "orderId": 224046,
    "status": 2,
    "executedOn": "20/Sep/17",
    "executedBy": "Person B",
    "executedByDisplay": "Person B",
    "cycleId": 4012,
    "cycleName": "Cycle B",
    "versionId": 22912,
    "versionName": "Version B",
    "issueKey": "Key-12578"
  }, {
    "id": 253075,
    "orderId": 224045,
    "status": 1,
    "executedOn": "20/Sep/17",
    "executedBy": "Person B",
    "executedByDisplay": "Person B",
    "cycleId": 4012,
    "cycleName": "Cycle B",
    "versionId": 22912,
    "versionName": "Version B",
    "issueKey": "Key-12582"
  }, {
    "id": 253074,
    "orderId": 224044,
    "status": 1,
    "executedOn": "20/Sep/17",
    "executedBy": "Person B",
    "executedByDisplay": "Person B",
    "cycleId": 4012,
    "cycleName": "Cycle B",
    "versionId": 22912,
    "versionName": "Version B",
    "issueKey": "Key-12584"
  }],
  [{
    "id": 255168,
    "orderId": 226138,
    "status": 1,
    "executedOn": "26/Sep/17",
    "executedBy": "Person A",
    "executedByDisplay": "Person A",
    "cycleId": 4022,
    "cycleName": "Cycle C",
    "versionId": 21291,
    "versionName": "Version A",
    "issueKey": "Key-12617"
  }]
]

Angular JS 代码

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

app.controller('StudentCntrl', function($scope, $http, $filter) {
  $http.get('data.json').then(function(response) {

    $scope.value = response.data;

    $scope.value.forEach(function(items) {
      $scope.eachValue = items;
      items.forEach(function(insideItems) {
        passvalue = $filter('filter')(insideItems, function(inputs) {
          if (inputs.status == '1')
            console.log(inputs.length);
          return inputs;
        });
      });

    });
  });
});

Answer 1

您可以简单地使用 java script array filter类似的东西

 arr.filter( function(a){return a.status==1}).length

或者使用 Angular

 $filter('filter')(v, function(vc) {return vc.status ==1}).length

Here is working demo