lein clean
lein figwheel dev
Figwheel will automatically push cljs changes to the browser.
Wait a bit, then browse to http://localhost:3449.
lein clean
lein doo phantom test once
The above command assumes that you have phantomjs installed. However, please note that doo can be configured to run cljs.test in many other JS environments (chrome, ie, safari, opera, slimer, node, rhino, or nashorn).
To compile clojurescript to javascript:
lein clean
lein cljsbuild once min