js对象方法

js 代码

<!---->"-//W3C//DTD HTML 4.0 Transitional//EN">




  <script>
         function obj(){
        this.login=function(){
            alert('login');
        }
                this.login2=function(){
            alert('login2');
        }
                this.login3=function(){
            alert('login3');
        }
     }
    </script>




  <script>


     var methods=new obj();

    if(methods.join==Array.prototype.join)
    {
        for(var i in methods)
        {
            var x=methods[i];
            if(x.join==Array.prototype.join)
            {
                alert('1');
            }
            else
            {
                    alert('2');
            }
        }
    }
    else
    {
        for(var i in methods)
        {
            var x=methods[i];
            alert(i);
        }
    }

  </script>