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I have seen Lua code with functions like strfind; why doesn it work?

April 26, 2017code functions Lua seen

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I have seen Lua code with functions like strfind; why doesn it work?

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Functions like strfind mean that this is Lua 4.0 code; these functions are now in tables, like string.find. Look at the standard libraries section of the manual. In Lua 5.1, all strings have a metatable pointing to the string table, so that s:find(‘HELLO’) is equivalent to string.find(s,’HELLO’).