User Guide

Asc 395
Asc
Description
Determines the value of a character.
Returns
The value of the first character of a string; if string is empty, returns zero.
Category
String functions
Function syntax
Asc(string)
See also
Chr
History
ColdFusion MX: Changed Unicode support: ColdFusion supports the Java UCS-2
representation of Unicode characters, up to a value of 65536. (Earlier releases supported 1-255.)
Parameters
Example
<h3>Asc Example</h3>
<!--- if the character string is not empty, 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>Enter a character</h4>
</cfif>
</cfif>
<form action = "asc.cfm">
<p>Enter 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>
Parameter Description
string A string