Optimization Tips

Avoiding ambiguity of attributes / children

You can explicitly set the attributes to {} and avoid the ambiguity of children vs attributes that would need to be resolved during runtime. Observe:

(macroexpand-1 '(html [:a (foo)]))
=>
(clojure.core/let
 [attrs99902 (foo)]
 (clojure.core/apply
  js/React.createElement
  "a"
  (if (clojure.core/map? attrs99902) 
        (sablono.interpreter/attributes attrs99902) 
        nil)
  (if (clojure.core/map? attrs99902) 
        nil 
        [(sablono.interpreter/interpret attrs99902)])))


(macroexpand-1 '(html [:a {} (foo)]))
=> (js/React.createElement "a" nil (sablono.interpreter/interpret (foo)))