I don't see how generators are going to change how actual async programming happens in node.js, at least in ES6.
Generators in ES6 are "shallow," they cannot yield until some time in the future when IO is done. Generators could be combined with some kind of promise interface, along with a new keyword, to yield a promise that spans turns of the event system, but this is ES7+ theoretical stuff we're talking about now. The biggest thing I see generators effecting in the short term is stuff like underscore/lodash because it presents an alternative and, arguably, more efficient way to process iterators which is most of what people do with those libraries. If successful the impact would not be small as underscore is currently the most depended on library in npm, more than async, which means this could actually effect more people than some future promise thing or alternative to callbacks. -Mikeal On Aug 5, 2013, at 11:20AM, Andrew Gaspar <[email protected]> wrote: > This is a discussion that has been had time and time again, and it seems the > general consensus is this - callbacks are about as low level as they can go > to achieve asynchrony and if you want to wrap that in a different construct > that you find more useful, then that is something you can either use a third > party module for or do yourself. > > I also greatly prefer promises over callbacks because they are so much easier > to reason about and compose, but I understand that is not everybody's > favorite abstraction, and can be unnecessary in some circumstances, so I > think the right decision was made in not including it in the standard API. > > Andrew Gaspar > > > On Mon, Aug 5, 2013 at 8:23 AM, Christopher Probst > <[email protected]> wrote: > Hi guys, > > today I read something about the upcomming es6 generator support and how > useful they are in combination with promises (Q library for instance). > > The problem with node is that it provides only asynchronous functions (and > synchronous.. pff). > I think in order to use promised based io the node.js should support an > additional function for each asynchronous function in the future or maybe a > library which does this. > > I know that the Q library already exports functions like "Q.denodeify" so > it's definitely not much work but it's still work. > > I've started with node a year ago and it is really a nice tool but I always > hated the callbacks. They are not composable, verbose and absolutely ugly. > > What do you think about this issue ? Any chance direct support for this will > ever be added ? > > Regards, > Chris > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
