VBScript IsNumeric function
May 13, 2021 VBScript
Table of contents
VBScript IsNumeric function
The VBScript IsNumeric function returns the Boolean value, indicating whether the expression can be treated as a number and evaluated using that number.
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The IsNumeric function returns a Boolean value indicating whether the specified expression can be evaluated as a number. True is returned if the expression is evaluated as a number, otherwise False is returned.
Note: If the expression is a date, the IsNumeric function returns False.
Grammar
IsNumeric(expression)
| parameter | describe |
|---|---|
| expression | Required.An expression. |
<script type="text/vbscript">
Dim x
x=10
document.write(IsNumeric(x) & "<br />")
x=Empty
document.write(IsNumeric(x) & "<br />")
x=Null
document.write(IsNumeric(x) & "<br />")
x="10"
document.write(IsNumeric(x) & "<br />")
x="911 Help"
document.write(IsNumeric(x))
</script>
Dim x
x=10
document.write(IsNumeric(x) & "<br />")
x=Empty
document.write(IsNumeric(x) & "<br />")
x=Null
document.write(IsNumeric(x) & "<br />")
x="10"
document.write(IsNumeric(x) & "<br />")
x="911 Help"
document.write(IsNumeric(x))
</script>
The above example output results:
True
True
False
True
False
True
False
True
False
Try it out . . .
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