Case cases in Clojure

Question

Besides the constant time dispatch of case, what could be other points leading me to use case instead of cond condp?

Answer 1

1. Assuming that you really are dealing with compile-time constants, case semantically conveys the nature of your condition better than cond or condp.
2. case is more concise than cond or condp.

Example:

(cond
  (= foo 1) :one
  (= foo 2) :two
  (= foo 3) :three)

(condp = foo
  1 :one
  2 :two
  3 :three)

(case foo
  1 :one
  2 :two
  3 :three)

I can't comment on any performance aspects, but as always, that should be the least of your considerations.