Re: avoid table lookups?

[Marc Lepage <mlepage@...>]

On Fri, Oct 26, 2012 at 9:58 AM, spir <denis.spir@gmail.com> wrote:

Hello,

Is it worth in Lua, at start of a func or before a loop, to "localise" table fields? As in:

f = function (t)
   local x = t.x
   if x < 0 then
      ... use x ...
   else
      ... use x ...
   end
   ...
   local z = t.y.z
   for i = 1, 1000 do
      ... use z ...
   end
   ...
end

Thank you,
Denis

Yes that can result in a performance speed-up. Which is to say, if performance is an issue, that can help.