Let's take a look at the code: Lua answers related to “how to make global var in lua exploit” lua print; lua local; inline variables lua; lua variable; how to print in lua; Tool script example for lua; lua setmetatable; Lua variable; lua hello world; what is the point of local varaibles in lua; how to print a variable in lua This tutorial assumes you know the very basics of Lua: what a variable is, and how to assign one. Lua extensions and global variables don The global variable is declaring variable name which is using entire coding. lua c++ set global variable code example Lua : How to override global functions properly ? | HIVE The scope of a local variable is from the declaration position to the end of the statement block . The variables in Lua are all global variables, and it is afraid that it is a statement block or a function unless the local variable is explicitly declared. lua global variables in functions lua A first approach is as follows: setmetatable(_G, { __newindex = function (_, n) error("attempt to write to undeclared variable "..n, 2) end, __index = function (_, n) error("attempt to read undeclared variable "..n, 2) end, }) Help. I have only one issue with it, why on earth is its default behaviour that variables in functions are global? Edit ~/plugins/inject.js. The global variable does not need any keyword to declare the name. Instead, you'd just write like this: ]]--variable =--value--[[ Note, you don't always have to even assign a value to a variable. Lua variables and function scope: Writing efficient Lua (global vs ...