<function name="setfenv" parent="Global" type="libraryfunc"> <description>Sets the enviroment for a function or a stack level.</description> <description>Sets the environment for a function or a stack level. Can be used to sandbox code.</description> <realm>Shared and Menu</realm> <args> <arg name="location" type="function">The function to set the enviroment for or a number representing stack level.</arg> <arg name="enviroment" type="table">Table to be used as enviroment.</arg> <arg name="location" type="function">The function to set the environment for, or a number representing stack level.</arg> <arg name="environment" type="table">Table to be used as the the environment.</arg> </args> <rets> <ret name="" type="function">The function passed, otherwise nil.</ret> </rets> </function> <example> <description>Create a new environment and setfenv Display inside it</description>⤶ <description>Use setfenv to create a sandbox</description>⤶ <code> local newenvironment = {} ⤶ function newenvironment.log( msg )⤶ print( msg ) local sandbox = {} ⤶ -- Define a print function in the sandbox⤶ sandbox.print = function(s) return print("[Sandbox] " .. s) ⤶ end local function Display() log( "yay" ) local sandboxedCode = function() print("Hello") string.format("%s", "error please")⤶ end ⤶ setfenv( Display , newenvironment )⤶ ⤶ Display() ⤶ -- change environment for sandboxedCode to the sandbox table⤶ setfenv(sandboxedCode, sandbox) ⤶ sandboxedCode()⤶ </code> <output> ``` yay⤶ [Sandbox] Hello⤶ ⤶ Script:11: attempt to index global 'string' (a nil value)⤶ ``` </output> ⤶ </example> </output> </example>⤶