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Clojure's "killer feature" for me is the by-default persistent data structures. Are there any other functional languages out there with similar features? Lisp

• jbeja 9y ago
  Any mainstream functional language at this point. The data structures are not closed.
• runT1ME 9y ago
  Scala has a collections library that heavily emphasizes immutable/persistent data sructures. You aren't forces to use them but it is idiomatic Scala to be "pure"/non mutating.
• lilactown 9y ago
  Erlang/Elixir also is immutable & persistent by default.
  • retrogradeorbit 9y ago
    It is immutable and persistent, but not with the same performance characteristics. It lacks Bagwell's data structures that allow structural sharing. Take a 10 million item list in elixir and 'change' (return a new) the 5 millionth element. Time how long it takes. Do the same with clojure. Compare.
    • ramchip 9y ago
      That was true a few years ago, but not anymore: https://medium.com/@jlouis666/breaking-erlang-maps-1-31952b8729e6 https://medium.com/@jlouis666/breaking-erlang-maps-1-31952b8... (You would have to use a map though, the native lists are still plain old lists)
• deleted 9y ago
  [deleted]
• pmarreck 9y ago
  Elixir has that, and you can't even drop into Java/JVM mode to violate it! ;) Haskell as well, I believe.
• mintplant 9y ago
  In Haskell, data structures are immutable, persistent, and use structural sharing by default.