Determines the value of a character.
The value of the first character of a string; if string is empty, returns zero.
Asc(string)
New in ColdFusion MX: ColdFusion supports the Java UCS-2 representation of Unicode characters, up to a value of 65536. (Earlier releases supported 1-255.)
Parameter | Description |
---|---|
string |
A string |
<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>