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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. IsNumeric returns False if expression is a date
expression. The Is Numeric function determines if the expression
is a number.
Note :- If expression is a date the IsNumeric function will
return False.
The Syntax of the IsNumeric function is :-
Example#1 :-
Code :-
dim x
x=10document.write(IsNumeric(x) & "<br />")
x=Empty
document.write(IsNumeric(x) & "<br />")
x=Null
document.write(IsNumeric(x) & "<br />")
x="10"
Output :-
True
True
False
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Example#2 :-
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Code :-
dim x
document.write(IsNumeric(x) & "<br />")
x="911 Help"
document.write(IsNumeric(x))
Output :-
True
False
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Example#3 :-
Code :-
<%
=IsNumeric(123.456)
%>
Output :-
True |
Example#4 :-
Code :-
<%
=IsNumeric("This is a string.")
%>
Output :-
False
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