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lualuajit

Do file only once in Lua

I was wondering if there's a way to do a lua file only once and have any subsequent attempts to do that lua file will result in a no-op.

I've already thought about doing something akin to C++ header's #if/else/endif trick. I'm wondering if there's a standard way to implement this.

James

Solution

  • well, require pretty much does that.

    require "file" -- runs "file.lua"
require "file" -- does not run the "file" again