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Comment by chongli | Hacker News Reader

Those are 3 distinct types in Clojure; unfortunately they have no equivalents in JavaScript, thus they become strings.

To my knowledge, keywords are actually functions in Clojure, which do have an equivalent in JS. "Looks more like Clojure" seems like a good enough reason to me.

They can be used as functions, but I think they're implemented differently for optimization. Could be wrong.

Keywords implement many interfaces, function (IFn) being one of them. See this line in the clojure source code:

  public class Keyword implements IFn, Comparable, Named, Serializable, IHashEq

https://github.com/clojure/clojure/blob/master/src/jvm/cloju...

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