This repo contains runnable examples for running an example that demonstrates an issue with ClojureScript.

If you conj onto the result of filter/remove etc, you'll get wrong hash codes.

Run the Clojure example with:

lein run

The code shows the correct expected output when running under Clojure

Run the ClojureScript example by:

1. Running lein cljsbuild once
2. Open the file "web.html" in the root of this git repo in a browser
3. Open the web inspector and take a look at the output of the ClojureScript code there

Clojure:

$> java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
$> lein run

156247261 2
829981563 1
-2017569654 0
-1154116787 1
-733651870 2
1036804101 3

ClojureScript:

$> lein cljsbuild once
Compiling ClojureScript...
Compiling "target/classes/public/app.js" from ["src"]...
Successfully compiled "target/classes/public/app.js" in 0.536 seconds.
$> firefox web.html

(Output from Firefox console follows)
1185709346 2
-1917711765 1
-2017569654 0
-1025653387 1
-1025653387 2
-1025653387 3