javascript - 无法将值分配给 Angular 工厂内的变量？

Question

如果变量是一个数组，那么我可以将对象插入其中并获取 Controller 内的值，但如果将对象直接分配给该变量，我无法做到这一点

请任何人帮助我实现这一目标。

这是 fiddle 链接

Angular 代码:

//angular.js example for factory vs service
var app = angular.module('myApp', []);

app.factory('testFactory', function(){
     var countF={};//= [{abc:'aaa'}];
    return {

        getCount : function () {

            return countF;
        },
        incrementCount:function(){
          //countF.push({aaaa:'jshfdkjsf'});
           countF={aaaa:'jshfdkjsf'};
            //return countF;
        }
    }               
});

function FactoryCtrl($scope,testFactory)
{
    $scope.countFactory = testFactory.getCount();
    $scope.clickF = function () {
       testFactory.incrementCount();
       // console.log($scope.countFactory);
    };
}

HTML 代码:

<div ng-controller="FactoryCtrl">

    <!--  this is never updated after count is changed! -->
    <p> This is my countFactory variable : {{countFactory}}</p>

    <p> This is my updated after click variable : {{countF}}</p>

    <button ng-click="clickF()" >Factory ++ </button>
</div>

Answer 1

您的问题就在这段代码中 -

 incrementCount:function(){
        //countF.push({aaaa:'jshfdkjsf'});
        countF={aaaa:'jshfdkjsf'};
        //return countF;
 }

这里您没有初始化 countF 对象的 aaa 属性，而是重新创建它

初始化 - countF = {};

添加属性 -

  right `countF.aaa = "value";`

  wrong `countF = { aaa : 'value' }`

解决方案 -

incrementCount:function(){
    countF.aaaa = 'jshfdkjsf';
 }