System.StringType - Manhunter07/MFL GitHub Wiki
Declaration
const StringType = 4
Description
The StringType constant in the System package represents the type code for character strings of any length. It is returned when retrieving the type of such any string value using the TypeOf function.
Other than the name might suggest, it is not a type but a constant. If you want to restrict function parameters to accept strings only, use the string type constructor instead.