TraceMonkey 簡単いんすとーる
mac% sudo port install autoconf213 ... mac% sudo hg clone http://hg.mozilla.org/tracemonkey/ ... mac% cd tracemonkey/js/src mac% sudo autoconf213 mac% sudo ./configure ... mac% sudo make ... mac% js js> [1,2,3,4,5].map(function(x) { return 2 * x; }); 2,4,6,8,10 js> quit();