Clib Is Alphanumeric Method
The Clib Is Alphanumeric method returns True if the value you specify in the char argument is one of the following values:
An alphabetic character from A through Z
An alphabetic character from a through z
A digit from 0 through 9
If the value you specify is not one of the these values, then it returns Null.
The arguments for this method are the same as the arguments for the Clib Is Alphabetic method. For more information, see Clib Is Alphabetic Method.
Format
Clib.isalnum(char)