On Monday, January 5, 2015 2:27:03 PM UTC-5, Feng Xue wrote: > > These days, I was trying to utilize function hash in clojure/clojurescript > to generate unique id, but it turns out this function has very strange > behaviour to empty vector parsed from read-string in cljs with in clj. > > In clojure, hash function return -2017569654 for empty vector and the one > parsed from read-string > > user=> (hash [])-2017569654 > user=> (hash (read-string "[]"))-2017569654 > > However, in cljs, (hash []) returns surprisingly 0. And [] are also equal > to (read-string "[]"). > > cljs.user=> (hash (cljs.reader/read-string "[]"))-2017569654 > > cljs.user=> (hash [])0 > > cljs.user=> (= [] (cljs.reader/read-string "[]")) > true > > Does any one know the reason of it and how to solve it in cljs? > Since objects that compare equal should never have different hashes, this is indubitably a bug.
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