javascript - 如何使用 Angular 过滤器对数据进行分组？

Question

我有一个玩家列表，每个玩家都属于一个组。如何使用过滤器列出每个组的用户？

[{name: 'Gene', team: 'team alpha'},
 {name: 'George', team: 'team beta'},
 {name: 'Steve', team: 'team gamma'},
 {name: 'Paula', team: 'team beta'},
 {name: 'Scruath of the 5th sector', team: 'team gamma'}];

我正在寻找这个结果:

• 阿尔法团队
  • 基因
• 团队测试版
  • 乔治
  • 宝拉
• 团队 Gamma
  • 史蒂夫
  • 第 5 部门的 Scrath

Answer 1

您可以使用 angular.filter 的 groupBy模块。
所以你可以这样做:

JS:

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

HTML:

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

结果:
组名:alpha
* 玩家:吉恩
群组名称:beta
* 球员:乔治
* 球员:宝拉
组名: Gamma
* 玩家:史蒂夫
* 玩家:Scruath

更新: jsbin记住使用 angular.filter 的基本要求，特别注意您必须将它添加到模块的依赖项中:

(1) You can install angular-filter using 4 different methods:

1. clone & build this repository
2. via Bower: by running $ bower install angular-filter from your terminal
3. via npm: by running $ npm install angular-filter from your terminal
4. via cdnjs http://www.cdnjs.com/libraries/angular-filter

(2) Include angular-filter.js (or angular-filter.min.js) in your index.html, after including Angular itself.

(3) Add 'angular.filter' to your main module's list of dependencies.