CFLib.org – Common Function Library Project

Description:
IsFloat() determines if a number is a float or whole number. Returns true for float.

Return Values:
Returns a boolean.

Example:

<cfoutput>
isFloat(3.2) = #isFloat(3.2)#<br>
isFloat(3) = #isFloat(3)#<br>
isFloat(3.2apple) = #isFloat("3.2apple")#<br>
</cfoutput>

Parameters:

Full UDF Source:

/**
 * IsFloat() determines if a number is a float or whole number. Returns true for float.
 * Version 2 by RCamden (ray@camdenfamily.com)
 * 
 * @param eInt      Number to check (Required)
 * @return Returns a boolean. 
 * @author Phillip Holmes (pholmes@mediares.com) 
 * @version 1, April 22, 2003 
 */
function isFloat(eInt) {
    return (find(".",eInt) gt 0) and isNumeric(eInt);
}