Module:Sandbox/MSGJ

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require('strict')
local p = {}

p.main = function(frame)
	local nil_variable = nil
	return 'Value: ' .. tostring(nil_variable)
	.. '<br>Equals a:' .. tostring(nil_variable=='a')
	.. '<br>Does not equal a:' .. tostring(nil_variable~='a')
	.. '<br>Does not equal a:' .. tostring(not nil_variable=='a')
end

return p