Asc

Returns the ASCII value (character code) of the first character of a string. Returns 0 if string is empty.

Syntax

Asc(string)

string

Any string.

Examples

<!--- This code illustrates ASC --->
<HTML>
<HEAD>
<TITLE>
Asc Example
</TITLE>
</HEAD>

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

<!--- if the character string is not empty, then
output its ascii value --->
<CFIF IsDefined("FORM.charVals")>

    <CFIF FORM.charVals is not "">
        <CFOUTPUT>#Left(FORM.charVals,1)# =
          #Asc(FORM.charVals)#</CFOUTPUT>
    <CFELSE>
<!--- if it is empty, output an error message --->
        <H4>Please enter a character</H4>
    </CFIF>
</CFIF>

<FORM ACTION="asc.cfm" METHOD="POST">
<P>Type in a character to see its ASCII value
<BR><INPUT TYPE="Text" NAME="CharVals" SIZE="1" MAXLENGTH="1">
<P><INPUT TYPE="Submit" NAME=""> <INPUT TYPE="RESET">
</FORM>

</BODY>
</HTML>