FUNCTION
NAME, ARGUMENTS (optional)
This will create an internal function.
Example
FUNCTION printMessage, message$
PRINT message$
END FUNCTION
GOTO printMessage("Hello World!")
LINE BREAK
FUNCTION "printMessageWithArgs", message$, test$="Better world!"
PRINT test$
END FUNCTION
GOTO printMessageWithArgs("Hello World!")
Output
Hello World!
Better world!
Better world!