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How is python substantially different from javascript in this case? Google has a crazy fast javascript JIT compiler, even though javascript has something equiv

• masklinn 12y ago
  > even though javascript has something equivalent to python's setattr(). Python provides significantly more hooks into the behaviour of arbitrary objects, and arguably provides more flexibility than JS. Here are a few notes from Mike Pall (LuaJIT) on Python features making a straight interpreter slower, and the language harder to optimise (JIT tightly): http://lua-users.org/lists/lua-l/2004-11/msg00083.html http://lua-users.org/lists/lua-l/2004-11/msg00083.html Animats is full of shit, the ability to add arbitrary "static" attributes to existing objects is really not the main problem.