IsNumeric

Determines whether a string can be converted to a numeric value. Supports numbers in U.S. number format. For other number support, use LSIsNumeric.

True, if string can be converted to a number; False, otherwise.

IsNumeric(string)

IsBinary, IsValid

Parameter	Description
string	A string or a variable that contains one.

<h3>IsNumeric Example</h3> 
<cfif IsDefined("FORM.theTestValue")> 
<cfif IsNumeric(FORM.theTestValue)> 
<h3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> can be 
converted to a number</h3> 
<cfelse> 
<h3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> cannot be 
converted to a number</h3> 
</cfif> 
</cfif> 

<form action = "isNumeric.cfm"> 
<p>Enter a string, and find out whether it can be evaluated to a numeric value. 

<p><input type = "Text" name = "TheTestValue" value = "123"> 
<input type = "Submit" value = "Is it a Number?" name = ""> 
</form>

IsNumeric

Applies to

Description

Determines whether a string can be converted to a numeric value. Supports numbers in U.S. number format. For other number support, use LSIsNumeric.

Returns

True, if string can be converted to a number; False, otherwise.

Category

Syntax

See also

Parameters

Example