...spread operator and rest operator - Beau teaches JavaScript

The spread operator (...) spreads out the elements of an array (or iterable object). The rest operator condenses elements. The spread and rest operators are great additions to ES6!
🔗 Code: codepen.io/beaucarnes/pen/EWab...
🔗 More info: developer.mozilla.org/en-US/d...
Beau Carnes on Twitter: / carnesbeau
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[@abraaoazevedo5077]

"use your code for good" - loved it

[@Makebuildmodify]

Why is this video not embedded in the ES6 "rest" and "spread" pages!!??

[@oufcena5092]

Get a hint will get you here ;3

[@milleniummoses]

Thank you. These aren't well explained as I was going through the exercises on the website. I came here looking for better understanding.I get them now. Very useful.

[@pra__bhu]

Totally agree to you man :D.. Makes much more sense in the video

[@SanthanamSridharan]

Same!

[@azizmejri4850]

totally agree ! they didn'te xplain how to copy the array, they just said "const spreaded = ...arr; // will throw a syntax error" which confuse the hell out of u

[@leeallen2521]

Yep, they said they would go through spread & rest operators in detail later (under basic JS) but they didnt. So glad Im not the only one :)

[@kelvinmwendwa]

Haha. Same

[@panthonyy]

I just found the series "Beau teaches JavaScript," and boy, this is the best JavaScript tutorial series (at least about the topics covered). He is straight to the point, has a clear and clean voice that is easy to understand, and uses a good speech pace. Well, anyway, You got a new sub with notifications on ;)

[@andreagirardi833]

Thank you. The FCC exercise had poor explanation and the concept here is well expanded and is clear. Thumbs up!

[@justaprogrammer3764]

i find the real only curriculum is very confusing at times and speed up. This did also help me.

[@EminoMeneko]

I love this. Clear, not excessively long, right to the point.

[@sourandbitter3062]

Love your voice and your straightforward explanations Beau. Very good tutorials.

[@richardl802]

Great - thanks for your help in understanding this. Useful to see the different use cases explained together.

[@pavXX]

Thanks for the explanation. The FCC exercise explanation sucked.

[@Nyah420]

Harsh but accurate.

[@rnmatsuda]

This is extremely helpful and well explained. Thank you, Beau!

[@milanm9907]

Crystal clear, thank you Beau!

[@SanthanamSridharan]

Thank you! This is superb addition to the website tutorial!

[@deepeshsingh923]

Straight forward and useful explanation. Pretty helpful.

[@phillipscards]

Thanks for such a great explanation. Helped me make some sense of it.

[@d0m2288]

Concise and informative. Much appreciated.

[@amwostan6505]

Thanks Beau. I was stuck on the FCC lesson about REST parameters and this really explained it well.

[@bran8370]

Great! You explained this well and made it easy to understand. I loved all the examples--really nailed it down for me. Thanks~

[@vladislavbarbarii2089]

Just excellent explanation.Thank you

[@lackadaisicallass9041]

Very interesting! Can't wait to use it. Thank you!

[@girlandhercomputer7204]

Thank you, your explanation is very clear and to the point!

[@vijaykumarreddyalavala3713]

Thank you so much for this video. Short and well explained

[@Amine-wp6de]

Thanks for the clear and precise explanation of the 3 dots !

[@bk-entertainz7081]

Wow! You made this so simple. THANK YOU!!!

[@aceborja1656]

Thank you. Very useful explanation. Great job Beau!

[@ahmad-ali14]

this is the best explain for those methods. many thanks.

[@mohd0606]

Thanks, man a quick and concise video. Now the concept was clear. Kudos to you. :)

[@GeorgeEmad]

clear and simple and to the point amazing

[@asfandiyar5829]

Awesome! Exactly what I was looking for. Clear explanation. Thanks

[@MrWardo2009]

Thank you for doing these videos! Really helped me !

[@santhoshnatarajan5271]

Thank you for the clear explanation

[@Zakyrie]

Really nice. I'll be using your videos as a reference point.

[@Shmack_]

Great tutorial thank you!

[@khajahussainpathan1064]

Thank you, Very good explanation. Understood clearly about Spread and rest Operator

[@daniamsalem]

Very simple explanation, thank you very much

[@hyejungk.6234]

amazing tut! appreciate a bunch!

[@kodave]

Again, thanks for the succinct explanation

[@lalaithan]

Excellent presentation.

[@herolivesnu]

Wow! You did a great job here in your explanations. I can't just pass without saying "God will continue to bless you with more knowledge".

[@BlueIceAce2015]

Great explanation, thanks!

[@00733adnan]

Awesome. Simple and meaningful.

[@DelicatelyStunning]

Thank you for this video. I spent way too long trying to decipher the documentation at MDN.

[@atifworld]

so easily explained, thank you

[@iVuDang]

Thank you, very helpful!

[@grantlineful]

Great explanation! Thank you.

[@eminm6383]

Great, clear explanation. Well done. 🙏 thnaks a lot

[@soygeekgirl]

Genial , super bien explicado!! ..

[@Ninethepoet]

Thank you thanks you thank you. I was stuck after getting about 50% progress and I needed to redo the whole course because my fundamentals were wrong.

[@adarshtiwari7395]

Concise and to the poin! Thanks a ton

[@deaddoomed2380]

so simple, so useful and so badly explained. this video made it much more clear for me, thanks!

[@pepsivanilla93]

Great explanation thanks so much

[@stackdevlopr]

explained beautifully!

[@diegoavendanohernandez9908]

Thank you much, super clear

[@yufeizhan726]

So good. Highly recommended!

[@andrewtcoder]

Thank you for this video!!!

[@Akephalos204]

clear as crystal, thanks

[@akagragupta9968]

well thank you so much , I was earlier just so confused now I am clear

[@israeli_soldier]

Excellent video

[@CameronPak]

Now I know how to spread... Woo!

[@MatthewChenIsAwesome]

also a nice tip with spread operator: if you're using react, instead of passing props like: ``` render() { const {key, title, summary, imageURL} = this.state; return ( //some stuff //other stuff } ``` you can do: ``` render() { const {...myComponentProps} = this.state; return ( //some stuff //other stuff } ```

[@oufcena5092]

I still haven't finished JS yet so, maybe I'll get it later. thx tho ;3

[@nebojsapavlovic8031]

Thanks Beau! This I understand.

[@ih4722]

Simple yet powerful.

[@buddha0004]

Thanks...I'm in the middle of these exercises for the FCC javascript cert now; Sometimes the directions aren't clear to me or confusing...(visual learner, I guess).

[@LuisMorales-yx8di]

Thanks, really helpful

[@devjeff3192]

Beau is awesome teacher !!! But I couldn't find any video tutorials regarding to ES6 on freeCodeCamp ! But finally found 'em on KZbin ! :)

[@alexlions8633]

thanks )) you are one of the best teaacher in js in the world

[@user-kn4oi9oh4i]

Thank you for this Bo

[@zeroxcrusher]

Thanks! ES6 course is so badly made, so this helps.

[@grandpowr]

Legit the best Javascript teaching series in youtube!

[@PMTechHelp]

Thank you!

[@canerates6180]

thank you so much! :)

[@mackynyxz]

Nice explanation

[@deathknell1970]

u are a great teacher

[@chengjinfei8139]

in this section we talked about spread out arrays. here's another helpful link for spread object. kzbin.info/www/bejne/g6HRq4Slr9x_fas

[@miaprivate9742]

It was an awesome explanation for rest of my life

[@ohiwantyoutobelieve]

Excellent, ty

[@kenbinta2246]

Well Explained. I did not have to watch the video twice to understand

[@braulioandre2918]

When passing elements of an array as arguments to a function, we can also use destructuring assignment: function ( [x, y, z] ). In this case when we call the function we don't need to use the spread operator...

[@CHAZZA2010XP]

perfectly explained

[@mmbower1]

THANK YOU

[@solaraproject3614]

Thank you

[@teenytinytoons]

Beau is my hero!

[@KhaledElkhawaga]

This is super cool.

[@justincook8473]

What will happen if you have nested arrays? For example, [[1,2], ["three", "four"]]

[@oufcena5092]

//return [] try yourself in dev tools JS console var multiply = (multiplier, ...args) => args.map( (element) => multiplier * element ); console.log(multiply([[1,2], ["three", "four"]]));

[@stavroskefaleas6320]

Omg.This is awesome!

[@DColls2488]

GREAT VIDEO FOR ROOKIE CODERS 🙏

[@MohsinKhan-wv3ep]

Best video i have ever watched ❤

[@lecanhduong7646]

so good !

[@ememmenor689]

thank you so much... :)

[@RobsonAlvesJJ]

thank you.!

[@harryhoudini9292]

muchas gracias

[@jt.633]

great explanation thank you! although the last one about the rest operator is still confusing

[@eledorusso]

the best tutorials

[@ahmed_raaphat]

Don't forget to subscribe and remember, USE YOUR CODE FOR GOOD! Thanks for the great explanation.

[@Eriksonmagno]

Awesome!

[@ankitasingh2563]

Thanks

[@Moorcheh]

VERY fluid explanation thanks FCC! Btw the excersizes' explanation needs a change!

[@oryaahmad2408]

thank you.

[@AllenZWalker]

very cool

[@irvingdelgado6426]

OH great, it's so useful!

[@Sergeodessa]

thanks for explanation! btw, what about the rest - rest? )