[Grammar] Question about strange use of comma

[CyndyB]

I have a friend who always puts a comma in the following type of sentence:

How are you doing, today?

That comma seems awkward and unncecessary to me, but he insists it's correct. Who's right?


thanks!

 

[SoothingDave]

Your friend is wrong.

 

[Mohammadhelmi]

There is no need for a comma. You are right.