Share this page

# Character Classification and Conversion Functions

Character Classification and Conversion functions allow you to convert characters within a string. Expand the category to view a list of the available functions.

Click one of the following functions for more information:

Function Name | Description
tolower | Converts a character to lowercase.
toupper | Converts a character to uppercase.
isdigit | Checks if a character is a decimal digit.
isalpha | Checks if a character is a letter.

Tips to improve your search results... VuGen Function Reference Version 26.1 Function Reference 26.1 All View Local Help Center View Online Help Center Version: