javascript - AngularJS:angular-filter:如何用2列分组？

我知道我听起来可能有些混乱，所以请您让我详细说明

注意：此帖子已附上有效的POC（代码段）。

我有一个具有3个属性的对象数组
名称

名称
球队
team_rank

 $scope.players = [
      {name: 'Gene', team: 'alpha', team_rank: 1},
      {name: 'George', team: 'beta', team_rank: 2},
      {name: 'Steve', team: 'gamma', team_rank: 3},
      {name: 'Paula', team: 'beta', team_rank: 2},
      {name: 'Scruath', team: 'gamma', team_rank: 3}
    ];

通过运行POC，我得到了如下图所示的结果。

javascript - AngularJS:angular-filter:如何用2列分组？-LMLPHP

问题

我需要用球队名称显示球队的排名。请建议我该怎么办？

<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
  <script src="//cdnjs.cloudflare.com/ajax/libs/angular-filter/0.4.7/angular-filter.js"></script>

<meta name="description" content="[groupBy example]"/>
  <meta charset="utf-8">
  <title>JS Bin</title>
</head>
<body>
  <div ng-controller="MainController">

<ul ng-repeat="(key, value) in players | groupBy: 'team'">
  Group name: {{ key }}
  <li ng-repeat="player in value">
    player: {{ player.name }}
  </li>
</ul>
  </div>

<footer>
  <script>
angular.module('app',['angular.filter'])
  .controller('MainController', function($scope) {
    $scope.players = [
      {name: 'Gene', team: 'alpha', team_rank: 1},
      {name: 'George', team: 'beta', team_rank: 2},
      {name: 'Steve', team: 'gamma', team_rank: 3},
      {name: 'Paula', team: 'beta', team_rank: 2},
      {name: 'Scruath', team: 'gamma', team_rank: 3}
    ];
 });
  </script>
</footer>
</body>
</html>

最佳答案

如果您确定每个玩家都具有team_rank属性，则可以执行以下操作：

Group name: {{ key }} Rank: {{value[0].team_rank}}

<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
  <script src="//cdnjs.cloudflare.com/ajax/libs/angular-filter/0.4.7/angular-filter.js"></script>

<meta name="description" content="[groupBy example]"/>
  <meta charset="utf-8">
  <title>JS Bin</title>
</head>
<body>
  <div ng-controller="MainController">

<ul ng-repeat="(key, value) in players | groupBy: 'team'">
  Group name: {{ key }} Rank: {{value[0].team_rank}}
  <li ng-repeat="player in value">
    player: {{ player.name }}
  </li>
</ul>
  </div>

<footer>
  <script>
angular.module('app',['angular.filter'])
  .controller('MainController', function($scope) {
    $scope.players = [
      {name: 'Gene', team: 'alpha', team_rank: 1},
      {name: 'George', team: 'beta', team_rank: 2},
      {name: 'Steve', team: 'gamma', team_rank: 3},
      {name: 'Paula', team: 'beta', team_rank: 2},
      {name: 'Scruath', team: 'gamma', team_rank: 3}
    ];
 });
  </script>
</footer>
</body>
</html>

关于javascript - AngularJS:angular-filter:如何用2列分组？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/38280464/