Om vs om-tools macro

om-tools component

(defn om-component [data owner]
  (om-tools/component
   (init-state [_} {:counter 1})
   (render-state [_ state] (dom/div nil (str "Hello " (:name data) ": " (:counter state))))
   (will-unmount [_] (.log js/console "bye"))))
  

om-tools defcomponent

(defcomponent om-component [data owner]
   (init-state [_} {:counter 1})
   (render-state [_ state] (dom/div nil (str "Hello " (:name data) ": " (:counter state))))
   (will-unmount [_] (.log js/console "bye")))
  

plain om

(defn om-component [data owner]
  (reify 
    om/IInitState
    (init-state [_} {:counter 1})
    om/IRenderState
    (render-state [_ state] (dom/div nil (str "Hello " (:name data) ": " (:counter state))))
    om/IWillUnmount
    (will-unmount [_] (.log js/console "bye"))))