Any bad implementation of something is bad. Sounds like immutability in JS is just badly designed and implemented, in a way that makes it difficult and slow to

Any bad implementation of something is bad. Sounds like immutability in JS is just badly designed and implemented, in a way that makes it difficult and slow to code with. Don't generalise you're experience of a thing if you've only tried its bad implementations. Like don't judge Monads until you try them in Haskell. Don't judge immutability or DSLs until you try it in Clojure, etc.