js两种创建对象方式

js创建方法的两种方式

 1 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 2     pageEncoding="ISO-8859-1"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 
11 </body>
12 <script type="text/javascript">
13     function show(){
14         alert("ok")
15     }
16     //show();
17     
18     var shows=new Function("name","age",'alert(name+age)');
19     shows('tom',12);
20 </script>
21 </html>

View Code

函数的属性

alert(shows.length)
alert(shows.toString())