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sknowieowl · 2021-02-17 07:07:49+00:00

TLA was accepted in the specification before the module loading scenarios were fully baked. Probably best to use async IIFEs until the TLA spec bugs are sorted out and the fixes are subsequently implemented in the major browsers and released. Maybe a year from now.

foota | karma 6719 | avg karma 2.15 · | 2020-10-10 21:05:43

I'm excited for async module loading for web assembly.

pcwalton | karma 42908 | avg karma 5.48 · | 2016-04-19 00:26:35+00:00

I wouldn't mind pulling it into the standard library if we're sure it's mature enough to be ready. In the meantime, though, it's the de facto standard async I/O framework, and I don't see that changing anytime soon.

liadmat | karma 32 | avg karma 1.88 · | 2016-05-16 09:33:27+00:00

I don't think async is currently in the official spec. Last time I checked it was stage 3.

fooyc | karma 765 | avg karma 2.74 · | 2011-09-05 12:24:14

What's sad with this is that most of these modules would work in a browser if only they used asynchronous module definition.

That would have been even more awesome.

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nicoburns | karma 22847 | avg karma 3.29 · | 2019-11-07 14:48:03+00:00

The library support's not quite there yet. But I'd bet on it being pretty good by the end of the year. A lot of popular libraries have async support on their master branches.

ylere | karma 1027 | avg karma 8.09 · | 2021-02-18 12:18:53+00:00

Happy fish+starship user here. Recently all modules where refactored to load lazily: https://github.com/starship/starship/issues/2111 A PR adding full async support is close to being merged, which should fix lag issues for good: https://github.com/starship/starship/pull/2223

raphinou | karma 771 | avg karma 3.12 · | 2020-01-26 06:35:55

After the last release, there was some talk about async syntax. Is that abandoned? Is it really so that the reasonml language is considered basically done now?

tracker1 | karma 11460 | avg karma 1.11 · | 2018-08-28 16:49:48+00:00

Every browser that supports generators is self/auto updating to a version that supports async. (Except maybe Safari)... in any case, that's where I decided to draw the line.

If it supports async, it stays on modern.html, otherwise it redirects to legacy.html. There's also the ability to do some server detection for what payload to deliver. It's just async support is the only feature I test for.

client test;

    try {
      eval('(function() { async _ => _; })();');
    } catch (e) {
      window.location.replace('/legacy.html');
    }

server test:

    import * as capabilities from 'browser-capabilities';

    export default userAgent =>
      capabilities
        .browserCapabilities(userAgent)
        .has('es2017');

sandGorgon | karma 11984 | avg karma 2.81 · | 2017-07-14 10:10:03+00:00

This is very interesting. did you consider using libev/uvloop - which are generally consider battle tested async frameworks ?

Is there anything missing that prompted you to reimplement ?

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andrewgodwin | karma 831 | avg karma 8.39 · | 2019-12-02 15:27:07+00:00

It's worth pointing out that the ASGI support in this release is very low level, and doesn't let you write async views or anything yet. We're still working on that.

jeremyjh | karma 8085 | avg karma 3.3 · | 2012-10-25 14:38:05+00:00

There are few async libraries.

westurner | karma 3375 | avg karma 0.93 · | 2023-08-23 16:36:11

IIRC the history of the async things in TLA in order: Twisted (callbacks), Eventlet (for Second Life by Linden Labs), tornado, gevent; gunicorn, Python 3.5+ asyncio

[ tornado (FriendFeed, IPython Notebook (ZeroMQ (libzmq)),), Sanic (asyncio), fastapi, Django Channels (ASGI), ASGI: Asynchronous Server Gateway Interface, django-ninja, uvicorn (uvloop (libuv from nodejs)), ]

The Async/await keywords were in F# (2007), then C# (2011), Haskell (2012), ... Python (2015), and JS/ES ECMAScript (2017) FWICS from the wikipedia article.

When we talk about concurrency and parallelism, what are the different ~async patterns and language features?

Processes, Threads, "Green Threads", 'generator coroutines'

Necessarily, we attempt to define such terms but the implementations of the now more specifically-named software patterns have different interpretations of same, so what does Wikipedia have or teach on this is worth the time.

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eli | karma 29331 | avg karma 3.14 · | 2010-09-21 22:27:53+00:00

I believe FFox 3.6 supports async attribute as well

samdk | karma 2390 | avg karma 6.18 · | 2014-02-14 00:14:40+00:00

If you haven't, also check out Jane Street's Core/Async, which is an almost-complete replacement (and extension) of the standard library. (Info here: http://janestreet.github.io/.) I work for JS so I'm biased, but I think it's quite a nice set of libraries. Because it's been developed mostly internally, we've had a lot of freedom to fix bad decisions, so it hasn't built up as much cruft as might be expected. (Although it is still obviously far from perfect.)

dekhn | karma 28741 | avg karma 2.63 · | 2022-11-10 12:36:37

I've used python since 1995 and I can say that async is one of the worst things I've seen put into python since then. I've used a wide range of frameworks (twisted, gevent, etc) as well as threads and even if async is a good solution (I don't think it is) it broke awscli for quite some time (through aiobotocore and related package dependencies). It's too late in the game for long-term breaks like that or any backward-incompatible changes impacting users.

elpakal | karma 811 | avg karma 2.36 · | 2021-04-25 21:08:10+00:00

this! lack of proper async support has been a big deterrent for me when considering Swift on my server or even Docker/CLI project. I worried that things like SwiftNIO/Vapor would change significantly when async landed and would require a lot of upkeep... I look forward to async landing.

xrt | karma 33 | avg karma 1.0 · | 2013-07-11 21:31:58+00:00

I should think OCaml or SML should be added to the mix. Neither has Async built in, but the other points are handled quite well. http://ocaml.org/description.html

cpburns2009 | karma 878 | avg karma 2.1 · | 2019-04-02 02:13:55+00:00

At worst async became a keyword in 3.5. I have to say I am enjoying f-strings from 3.6.

v3ss0n | karma 1164 | avg karma 1.72 · | 2022-10-16 01:48:36

Needs asynchronous libs to adopt it