How do I create an JS Object with methods and constructor in ClojureScript

Question

Imagine the task is to create some utility lib in clojurescript so it can be used from JS.

For example, let\'s say I want to produce an equivalent of:

Answer 1

This was solved with JIRA CLJS-83 by adding a magic "Object" protocol to the deftype:

(deftype Foo [a b c]
  Object
  (bar [this x] (+ a b c x)))
(def afoo (Foo. 1 2 3))
(.bar afoo 3) ; >> 9