On Wed, Nov 9, 2011 at 4:05 PM, Brendan Eich <bren...@mozilla.com> wrote:
> On Nov 9, 2011, at 12:40 PM, Jorge wrote: > > > On 08/11/2011, at 22:17, John J Barton wrote: > >> Just as a point of comparison, I use this form: > >> Object.keys(o).forEach( function(key) { > >> body > >> }); > > > > By the way, isn't that above a(nother) good use case for a goto, given > that there's no (easy) way to break out of a forEach 'loop' ? > > "goto" as in C, from body to a label in the outer function or script? > Seriously? > > You could always use try/catch/throw, but who would? > Umm, es-next, right? In a way, isn't this what StopIteration is? :) Still, it's a whole lot nicer to just let the language do your try/catch wrapping where you can. And if you need to break out of forEach, just, umm, don't use forEach. It's the wrong tool for the job. > Escape continuations and call/cc are off the agenda. > > See http://wiki.ecmascript.org/doku.php?id=strawman:block_lambda_revival-- > that's the only way you're going to get break as safer goto to work > here. There: I closed on a positive note! :-P >
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