There are some good examples with `MapIterator`, and its `filter`, `map`, `collect` or `collectAs` final methods here (from some old discussion): https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-11/nov-19.md#58-mapprototypemap-and-mapprototypefilter-spec--set I'm pretty sure there should've been other discussions on this, but I'm not sure about current state.
Just build a working prototype library from those examples as a proof on concept. Then spec'ing it should be relatively easy after it (assuming a champion who will be willing to run it through). Dmitry On Fri, Dec 9, 2016 at 7:46 AM, Benjamin Gruenbaum <[email protected]> wrote: > Hey, > > I remember a lot of talk about adding `.map/.filter` etc to iterators. The > benefits of doing this are pretty big and I think fairly well understood > and several other proposals (like observables and async iterators) would > benefit from it. > > (I expand on the big advantages this has over Array#map/filter if needed). > > Is anyone currently working on such a proposal? Was it discussed? > > I'd really like to see it move forward. > > Cheers > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
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