1. Yeah, Erlang beats JS in that regard without contest. Still, its better than and conditions race deadlocks. (Few mainstream platforms solve this really well

1. Yeah, Erlang beats JS in that regard without contest. Still, its better than and conditions race deadlocks. (Few mainstream platforms solve this really well and Erlang is one of them). 2,3,4. TypeScript, Flow, PureScript add varying degrees of strictness, checking and purity (from low to high, in that order)