IsNumeric |
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; otherwise, False.
Category
Decision functions
Function syntax
    IsNumeric(string)
See also
IsBinary
Parameters
Parameter | Description
string | A string or a variable that contains one.
Example
    <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>

string |
A string or a variable that contains one.