Re: Performance of hash and array inserts

[LanX]

If you are interested in the implementation, we had a discussion here not long ago with pointers into the relevant doc.

Re: can I change hash keys or values directly

HTH! :)

update

In short, rehashing is expensive but only happens in doubling steps, which makes the costs constant in average.

[bliako]

thanks for the link ot an interesting exchange which I somehow missed.