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Difference between revisions of "Module:HelloWorld"
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local p = {}; --All lua modules on | local p = {}; --All lua modules on Mediawiki must begin by defining a variable | ||
--that will hold their externally accessible functions. | --that will hold their externally accessible functions. | ||
--Such variables can have whatever name you want and may | --Such variables can have whatever name you want and may | ||
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p.hello = function( frame ) --Add a function to "my_object". | p.hello = function( frame ) --Add a function to "my_object". | ||
--Such functions are callable in | --Such functions are callable in Mediawiki | ||
--via the #invoke command. | --via the #invoke command. | ||
--"frame" will contain the data that | --"frame" will contain the data that Mediawiki | ||
--sends this function when it runs. | --sends this function when it runs. | ||
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return str --This tells us to quit this function and send the information in | return str --This tells us to quit this function and send the information in | ||
--"str" back to | --"str" back to Mediawiki. | ||
end -- end of the function "hello" | end -- end of the function "hello" | ||
return p --All modules end by returning the variable containing its | return p --All modules end by returning the variable containing its | ||
--functions to | --functions to Mediawiki. | ||
-- Now we can use this module by calling {{#invoke: HelloWorld | hello }}. | -- Now we can use this module by calling {{#invoke: HelloWorld | hello }}. | ||
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-- variable that you returned. | -- variable that you returned. | ||
-- The "print" function is not allowed in | -- The "print" function is not allowed in Mediawiki. All output is accomplished | ||
-- via strings "returned" to | -- via strings "returned" to Mediawiki. | ||