My fork of emonk library, in which I fix stuff for my own good.
Original can be found here: http://github.com/davisp/emonk/

erlang_js is awesome. But I started refactoring. Now there's emonk.

With the latest versions of Emonk there's quite a bit of difference now. Emonk is NIF based and uses a thread-pool to move JavaScript execution off of the Erlang scheduler threads. Translation from Erlang terms to JavaScript objects uses a native translation step to avoid JSON overhead. I haven't gotten around to actually testing to see if there's any sort of appreciable difference in speed.

1. A fairly recent version of Spidermonkey. I use the version from HomeBrew which uses this url.
2. R14A. Emonk uses the new NIF API extensively.

Hopefully the build scenario is something like:

$ git clone git://github.com/davisp/emonk.git
$ cd emonk
$ make
$ make test

I've been using etap to test as I code. Its awesome. You should use it. That said, running is pretty cake assuming emonk is on your Erlang code path:

$ ERL_LIBS=~/awesome_projects/emonk/src erl -s emonk
{ok, Context} = emonk:start_vm().
{ok, 6} = emonk:eval(Context, <<"var f = 2; f*3;">>).
{ok, undefined} = emonk:eval(Context, <<"var g = function(x) {return x*4;};">>).
{ok, 36} = emonk:call(Context, <<"g">>, [9]).

The best place to file bugs is at the issue tracker on GitHub. Less yapping, more tapping. Thanks mattly.

That's pretty much it. Mostly this was internal churn that I kinda started chasing around like my tail. Hopefully things are easy enough to follow in the logs and code.