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Description
Determines the ASCII value of a character.
Returns
The ASCII value of the first character of a string; if the string is empty, returns zero.
Category
Function syntax
Asc(string) |
See also
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, an empty string, or a number. |
Example
<cfscript>
WriteOutput(Asc("") & "|"); //returns 0 since ASCII value of empty string is 0
WriteOutput(Asc("a") & "|"); //returns 97 since ASCII value of "a" is 97
WriteOutput(Asc("A") & "|"); //returns 65 since ASCIII value of "A" is 65
WriteOutput(Asc("null") & "|"); //returns 110 since ASCII value of "n" is 110
WriteOutput(Asc("Null")); //returns 78 since ASCII value of "N" is 78
</cfscript>
Output
0|97|65|110|78