Module:Sandbox/RexxS/Demo

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local p = {}

function p.main(frame)
	
	x = tonumber(frame.args.x) or 0
	
	local msg = ""
	if x < 0 then
		msg = "negative"
	elseif x == 0 then
		msg = "zero"
	else
		msg = "positive"
	end
	
	return msg

end

return p