This is a minimal-ish example of getting an Austin ClojureScript REPL connected to your live app. It's extracted from yesterday's talk at Oslo Socially Functional meetup.
- Compile ClojureScript:
lein cljsbuild auto - Run the REPL:
lein repl - From inside the REPL, run the server:
(run!) - From inside the REPL, enter the ClojureScript REPL:
(cljs!) - To quit the ClojureScript REPL, type
:cljs/quit - Reap the benefits of your hard word:
(js/alert "Hee haw!")
In my talk I ran the REPL inside Emacs with Cider. A command-line REPL is nice, but running the REPL inside your editor gives you crazy awesome abilities to evaluate single lines of code, loading code and switching namespace with simple key-bindings and more.
To try it out, install Cider (assuming a fairly recent Emacs):
M-x package-install [RET] cider [RET]
Then start cider (assuming your lein repl process is still running):
M-x cider RET RET 54478 RET
Replace the port number with the one reported by the lein repl process.
Alternatively, to start a separate REPL process from within emacs:
M-x cider-jack-in ;; C-c M-j
M-x cider-switch-to-repl-buffer ;; C-c C-z
Now, to load the contents of a Clojure(Script) file into the REPL process:
M-x cider-load-current-buffer ;; C-c C-k
To evaluate the namespace form:
M-x cider-repl-set-ns C-c M-n