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VBScript IsNumeric Function


VBScript Reference Complete VBScript Reference

The IsNumeric function returns a Boolean value that indicates whether a specified expression can be evaluated as a number. It returns True if the expression is recognized as a number; otherwise, it returns False.

Note: If expression is a date the IsNumeric function will return False.

Syntax

IsNumeric(expression)

Parameter Description
expression Required. An expression

Example

Example

<%

Dim x
x=10
response.write(IsNumeric(x) & "<br />")
x=Empty
response.write(IsNumeric(x) & "<br />")
x=Null
response.write(IsNumeric(x) & "<br />")
x="10"
response.write(IsNumeric(x) & "<br />")
x="911 Help"
response.write(IsNumeric(x))

%>

The output of the code above will be:

True
True
False
True
False

Show Example »

VBScript Reference Complete VBScript Reference

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