That doesn't seem special: var foo = function (n) { return foo(n); }; foo(1); gives back "too much recursion", not "foo is not defined", in both Spidermon

That doesn't seem special: var foo = function (n) { return foo(n); }; foo(1); gives back "too much recursion", not "foo is not defined", in both Spidermonkey (Firefox 24) and V8 (node.js 0.10.something).