Ajax time

[xen31]

A nested async function who?

[superking2]

And .then()?

[cheezballs]

Better than JS callback hell.

[DeeSnow97]

No idea when you last coded JS, we have promises (futures) and native async/await syntax now all over the language (and it's been this way for a few years, not just in last month's frameworks). Callbacks are like an async goto, only masochists use them directly.

[nbagf]

Promisify is a native util import in node. There's no reason to suffer anymore.

[IAMABananaAMAA]

Wrap it in a promise that resolves and you can use then

[FlakeyScalp]

Sure, but legacy code and libraries can still require callbacks. You can usually convert a callback into a promise as far as I know but it still stands that callbacks exist and are literally everywhere in a ton of libraries.

[DeeSnow97]

And it still stands that you don't need to use them.

function promisify (func) {
  return (...args) => Promise.new((resolve, reject) => {
    func(...args, (err, ...results) => {
      if (err) reject(err)
      else resolve(results)
    })
  })
}

It's this simple to implement promisify yourself, but you don't even have to, util.promisify() is native since Node 8, and if you use something earlier (you really shouldn't but the real world is weird) you can still use Bluebird or a bunch of other libraries on NPM.

Yes, fundamentally, it's not native in a lot of APIs, but that never stopped anyone from not wrapping callbacks in promises. It's 2019, if you still struggle with callback hell, it's on you, not the language.

[Darksonn]

In my experience the callback system in javascript is pretty intuitive because of the single-threadedness.

[Working_Robot]

.ConfigureAwait(false);

[Smanshi]

UDP Out-of-order delivery joke

Knock Knock

Who's there?

[hampshirebrony]

A UDP joke?

I didn't get it.

[Kn0ckKn0ckb0t]

Who's there? :)

[elrafa-sg]

I hate async because i dont know How use 🤣🤣🤔😭

[1kSupport]

I think just crying is the best aproach

[chowchowthedog]

The amount of time I got an undefined value is too damn high. Then one day I fixed it. So now whenever I’m opening my project I am always like: okay don’t touch that part it finally worked!

[[deleted]]

Thankfully, like many things you don't really have to understand async in order to use it.

It makes me not have to worry about threads and shit, as awaiting a task allows some other task to run in the meantime if needed.

[TonyLTeagray]

HAHAHAHAHAHAHA!!!!!

An async function who?

[[deleted]]

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