javascript - 类型错误 : Cannot read property '0' of undefined AngularJS

Question

    for ( var i = 0; i < members.length; i++ ) {

        var value = value[i];
        console.log(value);

    }

真的很困惑这怎么可能是错误的......

'i' 被定义为零，因此不确定它如何找不到该值。

下面是我的 Controller 代码的全部。

 angular.module(module.name).controller(module.name + '.c.' + current.name, [
        '$scope',
        '$stateParams',
        'members',
        'assessment', 
        '$localStorage',  

    function (scope, stateParams, members, assessment, $localStorage) {
        scope.members = members;        
        // Asessment and item scope variables
        scope.assessment = assessment;             

        scope.active = $localStorage.$default({
            value : false
        });  

        console.log(members.length);      

        // This isn't doing anything much atm apart from firing the 
        // console logs
        scope.change = function (active) {

            if (active) {
                scope.active = $localStorage.$default({
                    value : true
                });
                console.log('hi 1');
            } else {
                scope.active = $localStorage.$default({
                    value : false
                });
                console.log('hi 2');
            }
        };   

        for ( var i = 0; i < members.length; i++ ) {

            var value = value[i];
            console.log(value);
        }
    }
]);

更新

这就是我所追求的:

for ( var i = 0; i < members.length; i++ ) {

        value = "value" + i;

        console.log(value);
}          

Answer 1

据我所知，值要么是true，要么是false。所以你需要删除这一行:

value = value[i];

我猜你正在尝试这样做，因为 members 是具有一组值的成员。请将您的代码更改为:

value = members[i];