write-read roundtrip results in different value, when key of a map is a decimal

[MrEbbinghaus]

My test generator found following, wrong behavior.

(let [w (transit/writer :json) 
      r (transit/reader :json)]
      (transit/read r (transit/write w {0.5 0})))
==> {0 0}

(let [w (transit/writer :json)]
     (transit/write w {0.5 0.5}))
==> "[\"^ \",\"~i0.5\",0.5]"

Version: [com.cognitect/transit-cljs "0.8.239"]

[msuess]

I am having the same issue.

[msuess]

Added a test that exposes this behaviour. Feel free to check out my branch and run lein cljsbuild once test :)

[msuess]

Taking a stab at it later

[p-himik]

Parent issue: cognitect/transit-js#36

[puredanger]

Just as an FYI, due to the difficulties of exact representation and comparison in floating point, using floats as keys in a hash table is generally considered a bad idea.