On Tue, Oct 7, 2014 at 1:48 AM, Dmitry Soshnikov <[email protected]> wrote: > On Mon, Oct 6, 2014 at 8:19 PM, Rick Waldron <[email protected]> wrote: >> On Mon, Oct 6, 2014 at 10:59 PM, Dmitry Soshnikov >> <[email protected]> wrote: >>> We're currently polyfilling `Array.from` in our codebase following the >>> latest draft [1]. And I was actually surprised by the `mapfn` being involved >>> into the algorithm. >> Have you tried es6-shim? > Yeah, I'm aware of it, though, we have own versions for better performance, > since may skip some internal checks, etc.
(Speaking as an es6-shim maintainer) I'm always interested in benchmark results and performance patches. Are the ES6-required checks really slowing you down? I would think that most JITs and CPUs handle infrequently-taken branches pretty well these days. --scott _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss

