Basic OM Next component in a Devcard

hello-world.cljs

(ns cards.playground
  (:require
    [om.next :as om :refer-macros [defui]]
    [om.dom :as dom]
    [devcards.core :refer-macros [defcard]]
    [devcards.util.edn-renderer :refer [html-edn]]))

(defui HelloWorld
       Object
       (render [this]
               (html-edn (om/props this))))

(def hello-world (om/factory HelloWorld))

(defcard hello-world-example
         "#Hello World"
         (hello-world {:message "Hello world!"}))