ClojureScript REPL dump

dump-1493267186206.cljs

cljs.user=> (defrecord ReversibleTie [a b])
cljs.user/ReversibleTie
cljs.user=> (extend-protocol IReversible
              ReversibleTie
              (^clj -rseq [cool] cool))
#object[Function "function (cool){
var cool__$1 = this;
return cool__$1;
}"]
cljs.user=> (extend-protocol IReversible
              ReversibleTie
              (^clj -rseq [tie] (->ReversibleTie (:b tie) (:a tie))))
#object[Function "function (tie){
var tie__$1 = this;
return cljs.user.__GT_ReversibleTie.call(null,new cljs.core.Keyword(null,"b","b",(1482224470)).cljs$core$IFn$_invoke$arity$1(tie__$1),new cljs.core.Keyword(null,"a","a",(-2123407586)).cljs$core$IFn$_invoke$arity$1(tie__$1));
}"]
cljs.user=> (reverse (->ReversibleTie :a :b))
#cljs.user.ReversibleTie{:a :b, :b :a}
cljs.user=> (extend-protocol IReversible
              ReversibleTie
              (^clj -rseq [tie] (->ReversibleTie (:b tie) (:a tie)))
              js/String
              (^clj -rseq [s] (str "the castle of " s)))
Extending an existing JavaScript type - use a different symbol name instead of js/String e.g string at line 1 
cljs.user=> (extend-protocol IReversible
              ReversibleTie
              (^clj -rseq [tie] (->ReversibleTie (:b tie) (:a tie)))
              String
              (^clj -rseq [s] (str "the castle of " s)))
ERROR - Cannot read property 'prototype' of undefined
cljs.user=> (extend-protocol IReversible
              ReversibleTie
              (^clj -rseq [tie] (->ReversibleTie (:b tie) (:a tie)))
              js/String
              (^clj -rseq [s] (str "the castle of " s)))
Extending an existing JavaScript type - use a different symbol name instead of js/String e.g string at line 1 
cljs.user=> (reverse "hi")
"the castle of hi"