On Sun, Apr 29, 2018 at 10:01 AM, Isiah Meadows <isiahmead...@gmail.com> wrote: > I think this would be better suited for a library function rather than > a language feature. I could see this also being useful also for > randomized displays, but that's about it. And I'm not sure what an > engine could provide here that a library couldn't - you can't really > get much faster than what's in the language (minus bounds checking, > but the likely frequent cache misses will eclipse that greatly), and > it's not unlocking any real new possibilities.
Yes, this is very easily doable in userland, and a built-in will have little if any speed benefit. The point, tho, is that this is (a) a relatively common operation, and (b) very, very easy to do *wrong*, as demonstrated by the SO link. Thus it's a reasonable candidate for inclusion as a built-in anyway, to avoid the footgun of trying to do it yourself and screwing it up. ~TJ _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
