As you develop your code, you should be aware that field components (fields defined in the Repository) each have a number of intrinsic methods. The functions available depend on the field's data type.
Here, Features help is shown for a string field, with the Features tab showing its Category View. Expanding Category.Intrinsic lists the methods available.
Double click a method to open detailed feature help in the browser.
Using Intrinsic Functions
Checking input for a valid email address:
If Cond(#std_strng.IsValidEmail)
* continue processing
. . .
Else
* Error
#Sys_Web.Alert('Not a valid email address')
Endif
For more information, see Intrinsic Functions.