On: Write any javascript code with just these characters: ()[]{}+

[skrebbel]

Apparently, he also did the OP's trick: http://utf-8.jp/public/jsfuck.html (but without, {} even)

[dherman → skrebbel]

Unfortunately, his tricks no longer work in current JS engines; it relies on using

  [].sort.call()

which I believe used to return the global object but now throws an exception.

AFAICT, you need to add {} to make this work in current JS engines.

Dave