Emacs is good for this. A buffer of clojure code in cider-mode can be (re-)compiled easily when you're jacked into a running session (as he does above). Of cou

Emacs is good for this. A buffer of clojure code in cider-mode can be (re-)compiled easily when you're jacked into a running session (as he does above). Of course, some of the issues the author faced can't be solved by Clojure's compilation step. When his code fails at runtime in the repl, it compiles successfully.