Asynchrony: Under the Hood - Shelley Vohr - JSConf EU

This talk will explore the conceptual underpinnings of asynchronous programming options, and the drawbacks and advantages to each. JS has supported callbacks since 2009, and as years have gone by it’s added support for promises, generators, and now async/await. On a surface level, each of these techniques seeks to answer a question of how to access data not immediately available, but a deeper look into how each works on a granular level will show their implementation differences and how these differences affect usage. We’ll also take a look at how intermediate values, and errors are affected by each method. I’ll walk through a series of scenarios so you can better visualize performance differences, and how each method propagates data through the stack and the event loop. Finally, I’ll talk about where the future of async may be headed. Armed with new knowledge from this deep dive, the potentially treacherous road to fully understanding async will hopefully become a smoother ride!
OMG JSConf EU is coming back in 2019 2019.jsconf.eu/

[@ElChitarrino]

Really great stuff there, thanks a lot! However, I feel the urge to mention it's quite hard to follow due to your verbal breaks each 3-5 syllables. No offense intended.

[@bagoquarks]

Callbacks, promises, generators, and async/await all explained in 25 minutes. Well done!

[@pixelpaxal]

If you already have a good grasp of callbacks, promises and async/await in javascript, this talk is a good review to put these these things into perspective and language evolution context, it could help one understand when to use one over the other.

[@Dygear]

It takes so much effort to make something complex, easy to understand. This is a really impressive talk!

[@paulalexwilson]

Truly understanding something requires that we have a solid appreciation of at least 1 abstraction deeper. This talk was exactly what I was looking for.

[@toxicdesire8811]

Most underrated talk of entire jsconf

[@ClanProStarZ]

Truly impressed by this talk. I thought I knew everything about async/await and promises but she proved me wrong.

[@ITWorx]

A very good explanation for promises vs callbacks, thank you!

[@arunas1]

Thanks @Shelley Vohr! Good job!

[@mojojojo1211]

This is a great talk. Deserves more views!

[@maltegb]

Great talk! Everything clearly explained

[@sandeepparmar3113]

In the hell of tutorials, This is the true gem

[@kps2642]

awesome talk, thank you.

[@randy4ii411]

Thanks for the awesome lesson.

[@josephlee5829]

Excellent Job explaining!

[@makhdv]

Thanks! Needed some time to get use to academic style.

[@sanderd17]

I wanted to have seen this talk so much earlier. Very well done.

[@payphones]

21:00

[@jameswon5497]

Really great talk!

[@dixztube]

This was so goood. Great job!