Lots. I can't remember exactly what I've seen, but believe I have seen it used in interesting ways. Including (drum roll...) .toString().substring(some_magic_nu

Lots. I can't remember exactly what I've seen, but believe I have seen it used in interesting ways. Including (drum roll...) .toString().substring(some_magic_number, ...) to do something or other (wish I remembered what). I'll let you think about whether that's wise, but note that indexing into 'function /* a comment */ foo () {}' (the example from the article) will give different results from indexing into 'function foo () {}'.