On Fri, Aug 17, 2012 at 6:49 PM, Brendan Eich <[email protected]> wrote: > All praise to Raf et al., my concern is that something synchronous, plus > event loop concurrency and setImmediate, would suffice to bootstrap the > rather more elaborate proposal on top of the simpler O.p.watch like > fundament. > > This is not to say we shouldn't standardize higher-level APIs, and instead > push that off on library authors to write, and users to download. There's a > delicate balance here. We often screw up higher-level abstractions in > annoying ways, but perhaps that risk is worth taking. > > What I'm really getting at is this: why not expose the synchronous primitive > and e.l.c. building blocks as well?
For the same reason we're killing MutationEvents, rather than just promoting MutationObservers as a better alternative - synchronous change notifications slow things down considerably, and they're *very* prone to making the browser crashy. Get the slightest thing wrong in your implementation, and suddenly the user is holding onto a null pointer. ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
