I think this conversation needs to happen but I am not sure baking it into Array facilities makes the most sense.
In my experience with async/await I am very often needing Promise.all but in some cases the other forms of multi promise capabilities. What if we expanded the keyword `await.all [...]; await.race [...]` or add a new context for `of` outside for loops but this would be limited to P.all behavior `await of [...]`? - Matthew Robb On Fri, Mar 3, 2017 at 9:47 AM, Andrea Giammarchi < [email protected]> wrote: > If this is what we gonna have > > `[].promiseAll` > > then I'd rather > > `Promise.all()` > > > You made some fair point, I guess there's nothing to see here. > > Regards > > > On Fri, Mar 3, 2017 at 2:12 PM, T.J. Crowder <tj.crowder@farsightsoftware. > com> wrote: > >> On Fri, Mar 3, 2017 at 12:43 PM, Andrea Giammarchi < >> [email protected]> wrote: >> > Not the first time I accidentally type the following: >> > >> > ```js >> > const allTheThings = await [pa, pb, pc]; >> > ``` >> > >> > I am assuming that JS will implicitly realize that'd be a >> > `Promise.all([pa, pb, pc])` call but nope. >> >> The problem is that an array of promises is a perfectly valid promise >> resolution value. (And that the proposal is now at Stage 4. :-) ) To >> do this, `await` would have to treat arrays specially in a way that >> promises don't. That seems like something `await` shouldn't do. You >> might propose `awaitall`, `awaitany`, `awaitrace` or similar... >> >> > Then I also realize it'd be cool to have other shortcuts too that >> > play nice with arrays such: >> > >> > ```js >> > Array.prototype.all = function all() { return Promise.all(this); }; >> > Array.prototype.race = function race() { return Promise.race(this); }; >> >> Side note: I'm fairly sure `all` isn't websafe as an `Array.prototype` >> function (isn't that why ES5 used `every`?). >> >> I don't think arrays need special promise-related functionality in the >> standard lib. But if they got it, I'd want it to be reflected in the >> naming, e.g. `[].promiseAll`, `[].promiseAny`, ... Both for clarity and >> for web safety (I'm fairly sure `all` on `Array.prototype` wouldn't be >> web-safe). >> >> -- T.J. >> > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
