VBScript IsDate Function
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The IsDate function returns a Boolean value that indicates if the evaluated expression can be converted to a date. It returns True if the expression is a date or can be converted to a date; otherwise, it returns False.
Note: The IsDate function uses local setting to determine if a string can be converted to a date ("January" is not a month in all languages.)
Syntax
IsDate(expression)
| Parameter | Description |
|---|---|
| expression | Required. The expression to be evaluated |
Example 1
Legal dates:
<%
response.write(IsDate("April 22, 1947"))
response.write("<br />")
response.write(IsDate(#01/31/10#))
%>
The output of the code above will be:
True
True
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Example 2
Illegal dates:
<%
response.write(IsDate("#01/31/10#"))
response.write("<br />")
response.write(IsDate("52/17/2010"))
response.write("<br />")
response.write(IsDate("Hello World!"))
%>
The output of the code above will be:
False
False
False
Show Example »
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