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A comment on Async and Await. Parent comment

Re:Async and Await by romanovcode on Friday June 03, 2016 @04:52AM (#11829111)
I much rather write coffeescript, but at least I can understand the code much better this way and it is not such an abomination.

    await getUsers(), defer err, users
    return cb err if err?
    
    await filterUsersWithFriends users, defer err, users
    return cb err, users
I seriously don't get how people like Javascript when to do such a simple things you need so much code that looks so ugly (IMO).
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Re:Async and Await by doublerebel on Friday June 03, 2016 @05:30AM (#11829213)
This is how I've been writing Iced Coffeescript for years. I still believe it's a major improvement over the typical promise syntax.

And to make the error handling even cleaner, check out the errify/errorCallback pattern:

http://maxtaco.github.io/programming/2014/09/18/handling-err...

https://www.npmjs.com/package/errify

https://github.com/nextorigin/express-rendertype/blob/master...

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Re:Async and Await by romanovcode on Friday June 03, 2016 @06:01AM (#11829304)
Hm, looks interesting. I wonder if it would be possible to monkey-patch the defer itself in something like this. So that defer itself is handling it, but only if you do the the monkey-patching per file and not globally.

   defer = require 'defer-esc'
   await req.get 'https://x.io', defer err, http, res # if err will call cb err
   await req.get "https://x.io?hash=#{res.hash}", defer err, http, res # if err will call cb err
   return cb res
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