StrLen

Counts the number of characters in a string.

Syntax

Parameters

Parameter Name	Type	Description	Optional?	Default Value
StringValue	String	The string to interrogate.	No	n/a

Output

The number of characters in the supplied string.

Use Case

Knowing the length of a string alone is not terribly useful, but you can use it for a wide variety of further expressions. For example, when asking a user to create a password for a new e-mail account, you might want to set a minimum and maximum length requirement:

This part takes care of the minimum limit; if the password supplied is 5 or more characters, the above expression evaluates to True. Using the And operator, we can join this initial expression to another that sets the upper limit.

Now, if the password is 5 or more characters in length, but less than 20 characters, the above expression evaluates to True, meaning that the password suits our purposes.