JavaScript ES6 Tutorial #11 - Generators

Yo ninjas, in this Ecmascript 6 tutorial I'll introduce you to generators, and how we can use them to create what are essentially pause-able functions.

JavaScript generators can be used to good effect when writing asynchronous code.

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[ekkehardehrenstein]

I just watched 5 different videos on Generators. Most of them just showed a bunch of code that was doing something whatever api thing rambling on about asynchronous, api and what not. You just showed what a generator does with some absolute basic and familiar things on a low level. This way you didn't distract me from what a generator essentially does. For me this certainly was the best approach. Thank you very much. Well done!

[cugamer]

Just finished this the (sadly) last of your ES6 tutorials. You have a real gift for conveying these concepts, keep it up! Subbed, and will be checking out your other series.

[ladyking]

promises, recursion and generator in one example! 🔥

[baluditor]

I did not know that JS runs right to left, that's really useful insight.

[HewieTheDev]

First - I love all your videos they are brilliant. This one is no different, a beautifully clear explanation.

With regards to your genWrapper function, I think it's worth noting that you have it processing the 3 AJAX requests sequentially rather than in parallel. To make a more efficient wrapper you could call all three get requests outside of the genWrapper, with a call to the genWrapper in the 'then' function passing the results into it. Of course you'd need to determine which result set was which in the wrapper but if you had 3 requests the code would only take as long as the slowest request rather than as long as all of them combined.

Thanks for all the great teaching.

[garrenmiller]

Man I love your tutorials. I've been all over YT looking for an explanation of generators and most of them were trying to use an API and poorly explaining the generator itself. Great video. Really simple to understand.

[alexisdvt]

Top notch!! Thanks, I understand the generator itself but I didn't understand clearly until right now the use cases, and with this video, my brain just click!!! Thanks!! Now I can see the power of this thing!!

[KG-fjex]

Was struggling to execute the code until I realised I needed to link to a jQuery library in my index.html! Thank you again Dear Ninja Man for another classic cameo on JS

[ezekielsaturday]

I was thinking this was one of those rare videos where Shawn gave profound impact to your knowledge base without summoning the Ninjas, Yoshi, Ryu, and Crystal. But then I saw Yoshi as a facebook friend and my hopes were dashed.

[charithfernando]

Hi Shaun, thank you so much for this tutorial with very valuable concepts on jscript. Your teaching skills are tremendous and very detailed. I would recommend this playlist for anyone who just finished the jscript basics tutorial. Stay cool.

[rostyslavklyba]

I've just completed watching this bunch of tutorials: good stuff! Thanks a lot!!

[mikhailsamotaev]

Thank you very much for this series of lessons! Your style of explanation is straightforward and informative!

[blissfulDew]

Thanks, this playlist is short and sweet. Looking for the next one to learn from your amazing tutorial.

[mayankgangwal]

Thanks a lot man. You made the basics clear. VERY CLEAR. Each and every chapter has something new to offer. Keep it up (y)

[MuhammadHamza-lfvu]

Great insight on the ES6 related topics.. quite helpful and time saving.. keep up the good work

[khumoyunakhmedov]

To the point, simple and intuitive explanation, muchass graçiasss!

[manueljordan]

Huge thanks for this playlist, I completed to watch it, well done!

[fadiliabdeljalil]

You've done a very good job explaining this, thank you.

[codexperts]

Wow, The best explanation for Generators in the world. Net ninja Shaun we got to say this... "The greatest teacher of JavaScript ever to be born on the planet"...

[lovesimpleton]

love your tutorials.. so very explained. thank you