WebHMI Docs

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===== Libraries =====
Since version 3.2 you can create your own libraries. These are special scripts that can be included from other scripts so you can share the same code across multiple scripts. 


<code lua common.lib> 
function myCommonFunction()
    TRACE("Hello, WebHMI user");
end
COMMON_CONSTANT = 1.6180339887
</code>
Use special keyword **include** to include another script. Provide script title as parameter to include needed script. Here is example:

<code lua using_include> 
include "common.lua"
function main(userId)
  myCommonFunction();
  TRACE("COMMON_CONSTANT = " .. COMMON_CONSTANT)
end
</code>

Best practice it is to put include outside any function calls, such as ''main'' or etc. Please note, that global variables in libraries will not be shared across all scripts. Only constants and code will be shared.