What are JavaScript Generators and Iterators?

In what might just become the beginning of a new JS series here on the channel, we look at the differences between iterators, iterables, and generators.

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#programming #coding #javascript #generators #iterators #iterables #ecmascript
#frontenddeveloper #backenddeveloper #softwareengineer #softwareengineering #softwaredevelopment

[andrew-burgess]

By the way, would anyone be interested in a live Q&A? I'm thinking about doing one when we reach 25K subscribers. Lemme know!

THANKS FOR WATCHING!

[hyperprotagonist]

The way you explain things, I feel it always clicks the first time. Watching your video should be valid experience on a CV 😂

[DEVDerr]

Holy shit, probably first breakdown of an iterators that I deeply understood! Gj man!

[bjul]

Finally yield makes sense! Thanks a lot 🤝

[xeliqa]

Amazing explanation, easy and clear to understand, especially since you started from ground zero and worked up

[tefkah]

this is great! I've only been comfortable enough with iteratorss etc to be able to consume them, but never enough to actually know what I was doing and definitely not enough to implement them. now I get it, tysm!

[kevinz]

Unbelievably well explained thanks a lot!

[fagnersales]

Amazing, understood everything you said now I'm excited to find ways to use that in my project.

[hansblanco]

Just discovered this channel, pretty good stuff!

[macr]

Great video, I like it. One little nice trick about iterable objects and generators - if you want to convert your object/class into iterable, implemented [Symbol.iterator] method can be generator function, which is far more convenient than writing simple iterable.

[en]

thanks! very well explained and super helpful!

[ghimirerahul]

what a video what a explaination thanks a

[joostschuur]

I'll remain unperturbed by the joy and the madness that I encounter everywhere I turn...

[BlazeShomida]

Something pretty cool ive been working on recently is a rust like iterator in js using generators. Got things like map, filter, fold, take, skip, etc. It works with infinite generators as well, but one thing I've been having issues with is finding a way to allow parallelization like rayon but like extremely basic. Like I got it somewhat working but still some kinks to figure out.

[nickolaizein]

Very well! Really good. But when do you use generators in your projects? Any good examples of it ?

[gamingwolf]

This is really good, i like your explanation, but what about usecases of those generators, i was waiting for some projects/packages uses them

[Luxcium]

i would love to been taught about how normal generators can yield promises and the benefit of of such exotic thing when compared to the more normal asyncGenerator that people use normally when they have promises

[AnuragWalia-fhxo]

i love your font, whats that font you are using ?

[adambickford]

This is why types are nice; you have them in js, you just can't express them. Instead, we reinvent them as 'protocols'.

[sanyamjain]

nice explanation and i would like know about "for await...of", async generator, async iterator and async iterable protocols, it confuses me alot..