It's down to what's idiomatic for the language. I'd argue that the Perl example is idiomatic Perl (just as the Lisp equivalent would be idiomatic Lisp), but tha

It's down to what's idiomatic for the language. I'd argue that the Perl example is idiomatic Perl (just as the Lisp equivalent would be idiomatic Lisp), but that's certainly not idiomatic JavaScript.