javascript - 返回对象的比较 - 服务与工厂的简单示例

标签 javascript angularjs object service factory

我有以下示例，显示从工厂和服务获得的结果。据我所知，Factory 总是返回一个对象，而服务总是返回一个对象的实例。这里，两个返回的对象在概念上有什么区别。有人可以澄清一下吗？ (特别针对这种情况)

片段:

<html> 
<head> 
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.min.js"></script> 
</head> 
<body ng-app="myApp" ng-controller="myCtrl"> 
<script>
    //module declaration
    var app = angular.module('myApp',[]);
    //controller declaration
    app.controller('myCtrl', function($scope, myFactory, myService){
        $scope.name = "Peter";
        var a = myService;
        console.log(a);
        var b = myFactory;
        console.log(b);
    });
    //services declaration
    app.service('myService',function(){
        this.age = 15;
    });
    app.factory('myFactory',function(){
        var obj = {};
        obj.country = "USA";
        return obj;
    });
</script> 
</body> 
</html>

结果: