This actually is no longer true with latest version & has being removed from compatibility with clojure(script). Function expressions
now cal only have name `(fn incerement [x] (+ x 1))`, doc and other metadata still can be specified on a function declarations though:

```js
(defn sum
  "Return the sum of all arguments"
  {:version "1.0"}
  [x] (+ x 1))
```

If you don't mind updating this to reflect that would be great!!