Module:If empty

Documentation for this module may be created at Module:If empty/doc

local p = {}

function p.main(frame)
	local args = require('Module:Arguments').getArgs(frame, {removeBlanks = false})

	-- For backwards compatibility reasons, the first 8 parameters can be unset instead of being blank,
	-- even though there's really no legitimate use case for this. At some point, this will be removed.
	local lowestNil = math.huge
	for i = 8,1,-1 do
		if args[i] == nil then
			args[i] = ''
			lowestNil = i
		end
	end

	for k,v in ipairs(args) do
		if v ~= '' then
			return v
		end
	end
end

return p