It seems they can be used as a little safer enums, like :keywords in clojure. It can come handy if you want to add method to object that nobody will overwrite b

It seems they can be used as a little safer enums, like :keywords in clojure. It can come handy if you want to add method to object that nobody will overwrite by accident. But clojure was designed around :keywords, while js was designed around strings as property names. Adding another possibility now complicates everything. I don't know if I like it.