There's more to conj. It does a cons for lists, but works differently for other types of collections. You might find it helpful to lookup things in ClojureDocs.

There's more to conj. It does a cons for lists, but works differently for other types of collections. You might find it helpful to lookup things in ClojureDocs. http://clojuredocs.org/clojure_core/clojure.core/conj http://clojuredocs.org/clojure_core/clojure.core/conj