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
Parameter | Description
string | A string
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>

string |
A string