Val

Returns a number that the beginning of a string can be converted to. Returns 0 if conversion is not possible.

Syntax

Val(string)

string

Any string.

Examples

<!--- This example shows Val --->
<HTML>

<HEAD>
<TITLE>
Val Example
</TITLE>
</HEAD>

<BODY bgcolor=silver>
<H3>Val Example</H3>

<CFIF IsDefined("FORM.theTestValue")>
    <CFIF Val(FORM.theTestValue) is not 0>
    <H3>The string <CFOUTPUT>#FORM.theTestValue#</CFOUTPUT> 
      can be converted to a number:
    <CFOUTPUT>#Val(FORM.theTestValue)#</CFOUTPUT></H3>
    <CFELSE>
    <H3>The beginning of the string <CFOUTPUT>#FORM.theTestValue#
      </CFOUTPUT> cannot be converted to a number</H3>
    </CFIF>
</CFIF>

<FORM ACTION="val.cfm" METHOD="POST">
<P>Enter a string, and discover if
its beginning can be evaluated to a numeric value.

<P><INPUT TYPE="Text" NAME="TheTestValue" VALUE="123Boy">

<INPUT TYPE="Submit" VALUE="Is the beginning numeric?" NAME="">
</FORM>

</BODY>
</HTML>