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08-05-14, 09:37 AM   #1
Haleth
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Join Date: Sep 2008
Posts: 1,173
Table iteration question

I was cleaning up some of my code when I noticed something that might be obvious, but I didn't realise before: Attempting to access variables that do not exist by iterating a table and calling functions on them does not result in any errors.

For example:

Lua Code:
  1. for k, v in pairs({ThisDoesNotExist, NorDoesThis}) do v:Show() end

This doesn't cause any errors.

Why is this? I find it rather counter-intuitive. I'm now going over all my code where I attempt to access global variables through tables and making sure I do a _G lookup by name instead - otherwise, I never know when one of the frames I'm trying to access no longer exists.

Last edited by Haleth : 08-05-14 at 09:39 AM.
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