Maybe you have heard about this feature in ES6 or you just didn’t have time to play with it.
It is something, that I have learned a few days ago ...
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I understand how they work, but I still have no idea where to use a generator.
I will write another post with examples where generators come in handy
Seems people agree. Unrelated: I also hate that you can't restart a generator. Despite the initial spec saying you could.
I finally got some time, so I wrote down one example for the usage of generators, hope that you'll enjoy reading it 👉dev.to/phung_cz/canceling-promises...
The only scenario I can think of is using an asynchronous generator in combination with the "for await ... of" loop (developer.mozilla.org/en-US/docs/W...) when not using libraries such as rxjs.
Interesting! I didnt know about for await of and I thought I had mastered async await :/
redux-sagas used a lot of generator functions
i did a very simple example:
I finally got some time, so I wrote down one example for the usage of generators, hope that you'll enjoy reading it 👉dev.to/phung_cz/canceling-promises...
You have an error in your return example: the value you
return
will be returned by the iterator'snext
call as a single{value: "Ultron", done: true}
, not in two distinct steps.Also,
undefined
should be between quotes, it's not a string but a specific value.Nice catch, just fixed that, thanks ;)
I didn't know about generators! interesting!
I hope that you will try them out!
I will research them and probably will try to use them!
And I'll wait for the next article you mentioned in this one ;)
I finally got some time, so I wrote down one example for the usage of generators, hope that you'll enjoy reading it 👉dev.to/phung_cz/canceling-promises...
I just read it and it was nice but to be honest, I still have trouble grasping how it could be more beneficial than other methods.
It's Monday and I haven't played with it so I'll revisit your article later and it will probably make more sense to me :)
Typo in code snippet:
yeild "Spider man";
Fixed, thanks!
Loved the article! I was wondering if we can use more combinations in the
yield
part . I don't know, maybe callbacks? Is it possible?I have not tested it yet 😓
yes, we can! You need to any function there ;)
Looking forward to your next post. What you have shown so far can be achieved much more easily with a simple array but I am sure there are better use cases for generators. I guess it gets more interesting when you don't know in advance how many values need to be generated.
I finally got some time, so I wrote down one example for the usage of generators, hope that you'll enjoy reading it 👉dev.to/phung_cz/canceling-promises...
Thanks guy for sharing. Hope you write an article, how to apply generator for real usecases. Thanks again! And we can keep contact because I see your Vietnamese name :D
Hey, haha sure, feel free to follow me on dev.to :D
I finally got some time, so I wrote down one example for the usage of generators, hope that you'll enjoy reading it 👉dev.to/phung_cz/canceling-promises...
Nice post, but I am wondering where to apply generators in real world.
What I got is that async / await syntax «abstracts» this stuff or it is not the case?
Yep, will write about it in my next post ;)