Async JavaScript with Promises

Learn to use Promise to manage your asynchronous JavaScript code.

[hraynaud]

Thanks Kyle. I've been struggling to grok promises for a while now and of all of the specs, blogs, and conference talks your simple 12 minute video was by far the clearest. Well done.

[SarbbottamBandyopadhyay]

This is the best explained tutorial/video on JavaScript Promise that I have watched so far. Thank you.

[jeremiahscanlon]

I've been fumbling around with converting my callback functions to promises forever, but I finally understood how to make it work after watching this video. Thanks!

[TransConBrilliance]

Great video. I am often amazed how one topic can be easy to understand in one video and ridiculously complicated in another. Promises for some reason (video tutorials and website documentations) always fall into the extreme of overly complicated or straight to the point easy. Your video is easy to understand. Thank you for saving my time.

[ryz]

Watched two videos before this one. Those other two didn't really help, this one made it crystal clear. The no-nonsense jumping right into the right world example was excellent. Great job man! Subbed and will be relying on your other videos for js too!

[brizzpatel]

Thattt was a 12 minutes of confidence booster session for using promises. Pretty concise still almost all we need to know about promises. Thanks Kyle :)

[pankajbhandari]

The way it was explained, made promise quite easy to understand :) Thank you

[CBusschaert]

omg

I understood a js video on something I didn't know anything about.
And I played it at speed 2


You're good!

[Unitazy]

Watched like 5 times to start understanding lol! Still the best video out there!

[aberba]

If you were my  lecturer, I would never get bored :)

[seewhatisee]

Simple with clear concept.
Thanks for the video .

[marhawk]

Very well explained! Subscribed! Keep em coming

[buttermuffin]

Helped me understand promises immensely, thanks!

[undefined-mjoi]

This is really well-explained. Thank you so much!

[huihao]

Thank you Kyle. Now it makes total sense!

[junedchhipa]

Finally understood!!
Thanks man, subscribed

[vishumzn]

Good good good, all good, subscribed!

[billsimpson]

Great explanation! Thank you!
I'm now wondering how to go about looping through a series of async calls (as thought they were synchronous) and also accessing common objects on subsequent executions. Can you suggest how I might accomplish the following?

run()
create a list of survey XML files (paths)
loop for each xml file found
read and convert XML file text to JSON data (object)
create a partial Surveyform (mongoose) doc from JSON data
save Surveyform, retrieve new Survey._id
create Attachment doc from JSON data
save Attachment doc, retrieve new Attachment._id
update Surveyform with Attachment._id (link)
save Surveyform

[jka]

It suddenly felt so easy...
Thanks a bunch Kyle (y)
#YouTheMan

[yllimdanny]

Thanks kyle, what a simple and clear video... btw why i dont see any semi-colon at the end of each line... javascript no long require semi-colon to end a line like sass ??? regards