Interested in Language
If a sentence begins with the 'if' clause, a comma is usually used after that clause. Are there any instances where comma is used before the 'if' clause as in the following:
Select an option from the drop-down list, if you have configured the database details.
Select an option from the drop-down list if you have configured the database details.
Which is correct?
Are there any difference in usage between UK and US English for this?
I would go without the comma.
(I also hope you tell the person what do to if you have NOT yet configured the details.)
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.