It should be noted that you can even if you in 99.9% of cases don't want to mutate state. For the few times when you want to squeeze the last drop of performan

It should be noted that you can even if you in 99.9% of cases don't want to mutate state. For the few times when you want to squeeze the last drop of performance, you can use transients[0]. [0] https://clojure.org/reference/transients https://clojure.org/reference/transients