ASP/VBScript IsNull()

Author: admin | Posted: 19-04-2010 | Category: ASP/VBScript & Type Checking Function

ASP/VBScript IsNull() Returns a Boolean value that indicates whether an expression contains no valid data (Null).

ShotDev Focus:
- Using Asp and IsNull() function.

Example

asp_isnull.asp


<% Option Explicit %>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<%
Dim strVar1,strVar2,strVar3
strVar1 = ""
strVar2 = "ShotDev.Com"
strVar3 = NULL
Response.write IsNull(strVar1)&"<br>"
Response.write IsNull(strVar2)&"<br>"
Response.write IsNull(strVar3)&"<br>"
%>
</body>
</html>

Create a asp file and save to path root-path/myasp/

Run
http://localhost/myasp/asp_isnull.asp

Screenshot