[Solved] How to treat nil value returned by otherdevices_svalues Topic is solved

[YellowSky]

Hi everyone,
in my lua script i use this command to recover the temperature and the humidity of a DHT sensor.
line 99 T, RH = otherdevices_svalues['Kitchen']:match("([^;]+);([^;]+)")
However i would like to treat this error i receive when the sensor is disconnect:

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Error: EventSystem: in domoticz/scripts/lua/script_time_thermostathyst.lua:99: attempt to index field 'Kitchen' (a nil value)

Is there any command to do this?
For example if a nil value is returned, change by default value and continue to execute the code.

Thank you.

[freijn]

instead of a calculation, first test if there is a value > 0 ?

[jvdz]

something like this:

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if otherdevices_svalues['Kitchen'] ~= nil then
	T, RH = otherdevices_svalues['Kitchen']:match("([^;]+);([^;]+)")
else
	-- put here your the actions in case it is nil
end

Jos

[YellowSky]

Thank you for your suggestion.