clojurescript tips 1.0

Clojurescript:

You can access the browser state in the repl.  use
<namespace>/<atom-name>.
or change to the namespace using

(ns example.core)

Note: @ needs to be before a fully qualified variable!!!

(defn process-data
  (let [app-state @example.core/app-state]
    (example.horror/mangle! app-state)))

Do not use js/console.log to display clojure objects because javascript will display strange things.  Turn on (enable-console-print!) and then use (println xxxxxx).

You should also load the clojure formatters in your browser: https://github.com/binaryage/cljs-devtools/blob/master/docs/installation.md

This makes things look even better.


To stop figwheel from loading stuff on every reload, add a defonce variable and call the functions you only want run once.  The trick here is to set the variable to a non null value after running your functions.

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(defonce setup-app (do (add-three-js-scene) (initialize-app) :done)) ;;setting setup-app to :done