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For Loops

The pairs and ipairs functions are optimized in Pluto. On a consistent basis, pairs & ipairs loops are 3.5x faster than their Lua counterparts.

How does it work?

It doesn't operate under all circumstances though, the state of the iterator is stored in the to-be-closed variable returned by these functions, which is the last variable they give. If you interact or modify this variable, then the optimization won't occur.

pairs: next, table, nil, nil
ipairs: ipairsaux, table, integer, nil

As long as you don't access the last nil value, you're fine.


This optimization was published and implemented entirely by Xmelia Hermit.