question regarding tables and number of entries

[sinnereso]

Im looking for a way to determine the number of entries on the fly for a chat multiiple event filter im working on for the "FOR" statement. Ive been getting errors stating its expecting a number with this setup.

MyAddon.killFilterList = {}

function MyAddon.PvpKillFeedFilter(victomDisplayName)--<< PVP CHAT FEED MULTIPLE EVENT FILTER
	for i = 1, MyAddon.killFilterList do
		if (nil == MyAddon.killFilterList[victomDisplayName]) then
			table.insert(MyAddon.killFilterList, victomDisplayName)
			return false
		end
	end
	return true
end

I'd like to to just scan the list and add entries theyre not present.

then later clear the list which I think I can do with "MyAddon.killFilterList = {}" but untested untill the 1st part is working.

Suggestions?