3 ms·

So, best case, with proper type annotation and a really good optimizer, you get the performance you would have had with plain old mutability? Pardon me if I re

So, best case, with proper type annotation and a really good optimizer, you get the performance you would have had with plain old mutability? Pardon me if I remain unconvinced that immutability is solving the problem adequately.

catnaroek 10y ago
> you get the performance you would have had with plain old mutability And muuuch better type safety. You can only mutate data in-place if either no one else has access to it, or it's wrapped in a mutex and you've taken a lock.