Question

{
"35": "testing",
"46": "tst123",
"51": "alpha_circular",
"56": "test4",
"60": "alpha_price",
"64": "test_attached",
"70": "test789",
"71": "new cir",
"73": "valid"
 }

我需要根据密钥按降序对上述数据进行排序。我怎样才能实现它？

此外，我已在 $ index ＆＃34;列表中使用ng-repeat="(id,value)"。我可以在这种情况下应用过滤器吗？

Answer 1

我检查过，发现orderBy仅适用于数组。所以你必须改变JSON。

Answer 2

不是Angular解决方案。只需JS解决方案即可使用密钥对Object进行排序。

var obj = {
"35": "testing",
"46": "tst123",
"51": "alpha_circular",
"56": "test4",
"60": "alpha_price",
"64": "test_attached",
"70": "test789",
"71": "new cir",
"73": "valid"
 };

function comparator(a, b){
  return b-a;
}

Object.keys(obj).sort(comparator).forEach(function(key, i) {
  console.log(key, obj[key]);
});

Answer 3

试试这个

var app = angular.module('app',[])
app.controller('ctrl',function($scope){
  
  $scope.data = {
"35": "testing",
"46": "tst123",
"51": "alpha_circular",
"56": "test4",
"60": "alpha_price",
"64": "test_attached",
"70": "test789",
"71": "new cir",
"73": "valid"
 };
  
  $scope.array = [];
  angular.forEach($scope.data,function(d,i){
    $scope.array.push({id:i,value:d});
    })
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="app" ng-controller="ctrl">
      <div ng-repeat="(key,value) in array | orderBy:'-id'">
            {{value.value}}
      </div>
</div>

Answer 4

尝试以下解决方案

在你的HTML中

function FooController($scope) {

  $scope.keys = function(){
      var keysList = [];
      angular.forEach($scope.items, function(value, key) {
        keysList.push({"key": parseInt(key), "value": value});
      });
      return keysList
  }
$scope.items = {
  "35": "testing",
  "46": "tst123",
  "51": "alpha_circular",
  "56": "test4",
  "60": "alpha_price",
  "64": "test_attached",
  "70": "test789",
  "71": "new cir",
  "73": "valid"

在您的控制器中

73 :: valid
71 :: new cir
70 :: test789
64 :: test_attached
60 :: alpha_price
56 :: test4
51 :: alpha_circular
46 :: tst123
35 :: testing

} }

输出应为

{{1}}

希望这对你有帮助。

Answer 5

我按照下面的解决方案希望它是正确的选择：

首先，我使用了反转键， $ scope.keys = Object.keys（$ scope.obj）.reverse（）;

然后在我看来 <div ng-repeat="key in keys"> {{obj[key]}} </div>

让我知道它是否正确！

Angularjs按降序排序

5 个答案: