javascript遍历对象属性和方法

使用javascript遍历对象的属性和方法
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <script src="lib/jquery-1.8.2.js"></script>
    <script type="text/javascript">

        //对象
        function Programmer() {
            this.name = "李小牛";
            this.sex = "男";
            this.age = 25;
            this.work = proFun;
        }

        //方法
        function proFun() {
            $("#function").append("程序员的工作是写代码");
        }

        function foreachObj() {
            //声明对象
            var pro = new Programmer();
            //遍历对象属性
            for (var p in pro) {
                //判断是否为方法
                if (typeof (pro[p]) == "function") {
                    //执行放阿飞
                    pro[p]();
                } else {
                    //打印属性
                    $("#attribute").append(p + ":" + pro[p] + "	");
                }
            }
        }
    </script>
</head>
<body>
    <input type="button" value="执行对象方法" onclick="foreachObj()" />
    <div id="attribute"></div>
    <div id="function"></div>
</body>
</html>