在js中,可以使用typeof获取变量或函数的类型,如下:
1 <head runat="server">
2 <title></title>
3 <script type="text/javascript">
4 window.onload = function() {
5 var aa = 1;
6 var bb = "123";
7 alert("aa的类型: " + typeof aa +
8 "\nbb的类型: " + typeof bb +
9 "\ncc的类型: " + typeof cc);
10
11
12 };
13
14 function cc() {
15 var i = 1;
16 }
17
18 </script>
19
20 </head>
21 <body>
22 <form id="form1" runat="server">
23 <div>
24 <asp:TextBox runat="server" ID="txt"></asp:TextBox>
25 <div style="z-index: 1000;border:">
26 <label>hello world</label>
27 </div>
28 </div>
29 </form>
30 </body>
效果图:
时间： 2024-08-24 08:12:08