I searched the forum for about an hour and did not find this. I must have missed it somehow because I cannot believe this has not been asked before:

What is the simplest way (prefer one to three lines of script) to check to see if the player has any arrows equipped?

It has to work with mod added arrows so I am trying to avoid using a form list.

Actually I cannot believe I have never needed this (for Skyrim) before myself.

Geeeezzzeee... 3 years of Skyrim combat modding and this is the first time?