javascript - ngRepeat 对象上的高级 AngularJS 自定义过滤

Question

我想实现如下理论代码:

VIEW.html

<li ng-repeat="player in players | filter:myCustomFilter(player)">{{player.name}}

CONTROLLER.js

// some theoretical conditional statement that return a boolean
$scope.otherCondition = true;


$scope.myCustomFilter = function(player) {
    return player.name.substring(0,1).match(/A/gi) && $scope.otherCondition;
}

所以我希望我的所有玩家都加载到 Angular 模型中，但我只想将玩家渲染到名称以字母“A”开头的 DOM 中。当我尝试做这样的事情时，我的控制台通知我 player 未定义。我是否需要编写自定义过滤器才能实现此目的(通过 angular.module().filter())？

Answer 1

这是一个工作 fiddle :http://jsfiddle.net/orlenko/jV6DK/

Html 代码(完全按照 Karl Zilles 的建议):

<div ng-app>
    <div ng-controller="MyController">
        <h2>Names starting with "A":</h2>
        <ul>
            <li ng-repeat="player in players | filter:myCustomFilter">{{player.name}}</li>
        </ul>
        <h2>All Names:</h2>
        <ul>
            <li ng-repeat="player in players">{{player.name}}</li>
        </ul>
    </div>
</div>

Javascript:

function MyController($scope) {
    $scope.players = [{
        name: 'Arthur'        
    }, {
        name: 'William'
    }, {
        name: 'Bertha'
    }, {
        name: 'Alice'
    }];

    $scope.otherCondition = true;

    $scope.myCustomFilter = function(player) {
        return player.name.substring(0,1).match(/A/gi) && $scope.otherCondition;
    }
}

Result