Special variables: Difference between revisions
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(→{{header|Lua}}: How to list global variables in Lua, explain _G and _VERSION) |
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=={{header|Lua}}== |
=={{header|Lua}}== |
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; arg : global table containing command line parameters with the name of the program at index 0. Not available in interactive mode |
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; _G : the table with the ''global environment'', i.e. all global variables, including itself and the other variables listed here |
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; _VERSION : string with the name of the interpreter and the major and minor version, e.g. "Lua 5.2" |
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To list all global variables: |
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<lang lua>for n in pairs(_G) do print(n) end</lang> |
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The list will include built-in global functions, whose availability depends on the implementation and compile time configuration. |
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=={{header|Mathematica}}== |
=={{header|Mathematica}}== |