ClojureScript:cljs.user> (def a nil)
nil
ClojureScript:cljs.user> (def b)

ClojureScript:cljs.user> (undefined? a)
false
ClojureScript:cljs.user> (undefined? b)
true
ClojureScript:cljs.user> (nil? a)
true
ClojureScript:cljs.user> (nil? b)
true
ClojureScript:cljs.user> (type a)
nil
ClojureScript:cljs.user> (type b)
nil
ClojureScript:cljs.user> (goog.typeOf a)
"null"
ClojureScript:cljs.user> (goog.typeOf b)
"undefined"
ClojureScript:cljs.user> (= a b)
true


That doesn't feel right… does it?

Definitely different from clojure… although it's difficult to compare without 
vars in cljs.

-FrankS.



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