angular.js - angular怎麼修改ng-repeat的ng-checked狀態？

Question

從後端取得數組如下：

$scope.arr = [
    {
        selected:true;
    }
    {
        selected:true;
    }
    {
        selected:true;
    }
]
$scope.select = function(){
    // 如何在不调用后端接口的情况下，修改ng-repeat中ng-checked的状态实现全选和反选？
    
}

<ul>
    <li ng-repeat="i in arr">
        <input type="checkbox" ng-checked="i.selected">
    </li>
</ul>

<input type="checkbox" ng-click="select()">

Answer 1

雷雷

Answer 2

$scope.arr = [
    { selected:true }
    { selected:true }
    { selected:true }
];

$scope.select = function(status){
    $scope.arr.map(function(item){
        item.selected = status === 'all'? true: !item.selected;
    });
}

<ul>
    <li ng-repeat="i in arr">
        <input type="checkbox" ng-checked="i.selected">
    </li>
</ul>

<button ng-click="select('all')">全选</button>
<button ng-click="select('inverse')">反选</button>

這裡邊的反選說的是在不全選的情況下，選中變為未選中，未選中變選中，不是清空！ ！ ！
清空的話要複雜一點。

Answer 3

http://stackoverflow.com/questions/12648466/how-can-i-get-angular-js-checkboxes-with-select-unselect-all-function性-and-i