Use JavaScript (ES6) generators with Promises to handle async flows

Fantastic course! Short and easy to watch / understand with a morning coffee. The last lesson enlightened me a lot — finally I understand the inner logic of async / await functions which in my eyes are essentially a combination of promises and generators. Thanks a ton for this course, looking forward for more your resources! Have a great day.

Thank you for the kind words, glad you enjoyed it 😊

How does a comparison between generators and observables look like?

Hi Max,

The videos were informative. I'm wondering however, in your last video where you use generators and Promises together to fetch some data, wouldn't it be much simpler to just use Promises in that fetchQuote generator (or rather, fetchQuote function)?

I fail to see what the generator+Promises adds in this case. Perhaps you were just trying to give an idea of the capabilities but used a not so stellar example.

A Promise-based implementation of fetchQuote() would consist of a chain of .then() calls. While there is nothing wrong with that, using yield instead allows you to write code that looks almost like a synchronous version of fetchQuote() would.

Imagine that fetch() is synchronous and picture the body of fetchQuote() without the yield keyword.

THIS IS AMAZING!

good course last lesson could be done with await and it would work, it would be good if you would incorporate side effect on yields to show why this could be better used.

redux-saga for examples provides great use cases for generators.

Doesn't async await make this no longer very useful?

@Austin In did, but even now there are some enterprises and system codes still writing like.

Many thanks for your great job!

Fantastic one!

Thank you for the course Max, I enjoyed the videos. But out of curiosity - does this have any benefits over async..await? (I understand the videos are quite old but still wanted to know your thoughts on this)

Can use this url for quotes: https://api.quotable.io/random