Seajure Meetup Notes

Intro

These are notes from our meetups. If we talk about a good tool or library, I’ll try and add a link here. Feel free to add your own notes.

February 2015

We tried to create a simple web application that echo’s messages (dare I say, a “twitter clone”?…well, not even close, actually.)

Code is at https://github.com/Seajure/echo.

Below is a snippet I saved from an earlier attempt:

(defonce hollas (atom []))

(defn layout [title & body]
  (html5
   [:head
    [:meta {:charset "UTF-8"}]
    [:title title]]
   [:body
    [:div.container {}
     body]]))

(defn holla-form []
  (form/form-to [:post "/"]
                (form/label "holla" "What do you want to holler?")
                (form/text-area "holla")
                (form/submit-button "Holla!")))

(defn display-hollas [hollas]
  [:ul
   (for [holla hollas]
     [:li {} holla])])

(defn index []
  (layout "Holla"
          (holla-form)
          [:div {:class "clear"}]
          (display-hollas @hollas)))

(defn add-holla [holla]
  (swap! hollas conj holla)
  (index))

(defroutes routes
  (GET "/" [] (index))
  (POST "/" [holla] (add-holla holla)))

(def app (handler/site routes))

(defn start [port]
  (ring/run-jetty app {:port port :join? false}))

(defn -main []
  (let [port (Integer. (or (System/getenv "PORT") "8080"))]
    (start port)))

March 2015

We’re planning on going over Marcus M’s Star Trek port.

• Reddit discussion
• https://github.com/marcusm/startrek-clojure
• I’ve forked it into the org, in case we make any changes we want to keep.
• UPDATE: I committed the changes we made, if anyone wants to see them.

Links

• Rush Hour game like the one Mark Engelberg made.
• Phil’s Peep Code video, which covers making a game in clojure.
• Caves of Clojure
• Clojure for the Brave and True
• clojure.tools.trace
• print-foo
• Stuart Sierra’s Component project on github
• “My Clojure Workflow, Reloaded”, Stuart Sierra’s Blog