Learning Rust: Memory, Ownership and Borrowing

We go to some strange places in the computer...
* A rough model of the stack and heap.
* Copy and Cloning values
* The three rules of ownership
* Immutable and mutable borrows
* Slice borrowing
The Rust book: doc.rust-lang.org/book/second...
List of Copy types: stackoverflow.com/a/41413595
End song:
Track: LFZ - Popsicle [NCS Release] Music provided by NoCopyrightSounds. Free Download / Stream: ncs.io/PopsicleYO
You all rock!

[@taylorallred6208]

That was one of the greatest analogies for teaching scope I have ever seen. Also, thank you for helping me understand rust's ownership!

[@YouCodeThings]

Cheers! Glad the video was useful :)

[@brianhechinger8715]

I'm only finding this video three years later but I just have to echo this. I've always struggled explaining stack/heap to people and this analogy makes it so super simple. I'm totally stealing this. 😀

[@YouCodeThings]

You're an amazing person!

[@ichdich2332]

Thank you, dito.

[@Debianz]

I can see you haven't made any videos in a while. Please don't give up, your doing great. I know KZbin channel growth can be slow, but you will get there at some point. Love the videos, keep up the great work.

[@mikailkhan9166]

no u

[@HermanWillems]

Did you just comment this to your own video? :) haha you must feel amazing about your own personality :D

[@itsr4yd946]

This channel deserves A LOT more subscribers!

[@kaderramy4021]

mind blow. of how easy you make complicated rusty concepts look. keep rocking dude

[@TBaguette]

Please continue making videos, you're clearly one of the funniest and best channels about programming ever ! I'd even say that if one day Rust becomes more popular, your channel could become very successful ! I really enjoy your Rust videos, I hope more are coming soon.

[@albert21994]

this is the best programming channel I have discorvered! subbed.

[@simonwtong]

I just finished reading the Ownership chapter of the book and this further solidified and clarified the lessons, thank you!

[@verified_tinker1818]

One of the best programming tutorials I've ever seen. Thanks!

[@avimehenwal]

I am having so much fun learning #Rust. Thankyou you guys @YouCodeThings, these videos makes it so effortless. Thats the power of community

[@Arunscape]

This is the best way I've seen ownership being explained. Thank you!

[@nhefner]

I just started with Rust and this video was super helpful! Keep up the excellent work, you deserve way more subs!

[@rifaldhiaw]

This is the best borrow system explanation yet!

[@anshvashisht8519]

that a wonderful explanation, so much time invested in making the difficult concept clear by animation.

[@NoorquackerInd]

Every KZbin video about Rust is always at least half an hour long and I've put off learning just because of that, but finally I've found something good

[@interceptings8624]

ACTUALLY SUCH A GOOD VIDEO i like the animations and explanations just makes it that much easier from going from something i know to jibberish code

[@soupnoodles]

Really loved this video, especially the out-of-scope lesson Really didn't get into my head just by reading the book, this was super useful!

[@fahmi2978]

The Friendly way to Learn Rust , and i love it . Thanks mate

[@officialabdulrehman]

What a gem of a channel 💎

[@wutong4524]

Holly crap, this video is golden

[@sashalarious5990]

Really enjoying the color scheme of this channel ☺️

[@borys4206]

I like your videos and its style! Thanks!

[@flash_alexander]

I wish to have similar videos covering the entirety of rust? your videos are vivid and make it easy to understand Rust for a programmer

[@Tr3Gee]

Thanks for such a clear explanation. The animations really helped, lol. Thank you YouCodeThings

[@jackwright517]

WHOA! This is super clear and well explained. 🤯

[@tetuaoro]

Ownership animation amazing thx fully

[@DeriveIt]

This video is great. Love the call stack analogy.

[@ailuros_]

Nice style making video. Very fun!

[@lancecarter8732]

Was just reading chp.4 in the Rust book and this really helped

[@arcticspacefox864]

I love your video😂 it was great and interesting! Please continue your style

[@joelmontesdeoca6572]

This explanation was amazing!

[@guillaumebogard5880]

Your channel is amazing ! Keep up the good work :)

[@shibasispatel6624]

You are a great teacher. Glad I found your channel..

[@rajanpoudel3787]

subscribing to your channel is the best thing that happen to me. loved your tutorials.

[@YouCodeThings]

Thanks for leaving a comment and subscribing!!! :) Your comment is the best thing that's happened to me.

[@WizardOfArc]

These are entertaining and informative - thank you

[@DwarkeshPatel]

This is such great content. Thank you!

[@janniswildermuth1499]

Really great explanation, thank you!

[@TheOMGPoPCorn]

Just what I needed. Great job!

[@mateuszgrzonka3826]

Love your vids!

[@ragrazila]

this channel deserves many more subscribers.

[@LakshmipathiG]

Great thanks! Excellent stuff.

[@xbony2]

This is hella professional, great work.

[@tengkuizdihar]

Wow this is well explained and really consice and clear. Very good job.

[@fabiomarsiaj8172]

Dude your videos are super good, keep going and thank you :)

[@GlebEagle]

Wow, this explanation is awesome!)🦀❤

[@jithind-feverx2818]

Ownership explained clearly ❤️❤️

[@quangle5701]

Excellent explanation ! Thank you very much.

[@nathanielgraham958]

I came across your video while trying to figure out why I got errors no matter where I tried to put an '&'. At the end of the video, I looked at my code, went "huh," and typed a single '&' next to one of my variable calls. Immediately every red squiggly line disappeared. Thank you! You explained ownership in an extremely helpful way.

[@kenny-kvibe]

Good descriptive video, simple and concise, thank you!

[@docentealejandrocarrillo471]

This video is more explained than the Rust Book.

[@elimgarak3597]

Great video! Thank you so much!

[@ruis2345]

Well explained, hats off

[@oroneki]

Oh! (...) my! (...) God! That is gooold! Thanks so much! Cheers from Brazil!

[@EngineerNick]

Thankyou for this clear explanation :)

[@1337CodeMaster]

Very well explained! Thank you so much :D

[@YouCodeThings]

You're welcome!

[@blue_lobster_]

Super cool video! Subscribed!

[@phildevtv409]

Thx for great explanation!

[@ktlknss]

thanks so much, I was wondering why the & was used sometimes but now I get it!

[@harrimahlstrom7706]

Realy good explanation!!!

[@AbhishekNigam]

Explained really well!

[@vedantnn7]

you really teach in very nice manner, instant subscribe

[@adinesh7989]

Great video. Too much work into each video. I like it.

[@YouCodeThings]

Thank you! I got way too into those animations in this video!

[@renatajakubowicz9664]

Thanks for teaching Rust!

[@gbrls_yt]

Hey man! good job, keep it up

[@niravprajapati1267]

Good work :)

[@Nate-gi7no]

SICK VIDEO!

[@henrytan5707]

Love it.

[@penta5421]

Damn, didn't understand this up until now. After watching the video, it kind of clicked and I actually understood! Thanks :D

[@doyourealise]

the best video on ownership amaizng

[@veggiefoodadventure]

nice explanation, thank you :)

[@YummyRed]

Maaan, you should make more learning videos. It's damn funny and useful.

[@orochi639]

Good explanation

[@hagenlens1403]

This video is so fucking great.

[@wishnuprathikantam]

Hey @youcodethings Great content 👍, please do more videos , if possible regularly!

[@geeksesi]

amazing. thank you.

[@ysuv5563]

I had to laugh so hard after seeing the angry face at 2:00 I have very little sleep, but this made me laugh hard. Thank you for making me laugh and thank you for the explanation.

[@cd-stephen]

good vid ty - new sub

[@kcru240]

I feel you sound like Dr. Seuss: there is a nice rhythm to the way you talk.

[@KarimAlbakry]

you forgot to mention that this only for reference types not value types

[@aiomixrecords]

You are great, what do you think is the best way to represent a Cyclic Graph with multiedges in-memory store and enable parallel reads/writes concurrently to the graph? .. am coming from erlang/elixir world where the shared memory is a sin, but I could use ets(memory erlang term storage) and let the genservers/processors(independent heap) get copies from the ets , now my question, how borrowing feature is diffrenent? Is the data is copy as well like elixir? Do you recommend me to move to rust instead of elixir ? Is it possible to have more parallelism in rust more than elixir? I think parallelism algorithm highly depend on shared memory approach? Elixir and rust seem they share a lot, thank you for this amazing work

[@YouCodeThings]

I love Elixir as well! They solve different problems. If you need something really fast where you can have a very good understanding of the nuts and bolts, I'd choose Rust. Elixir has a larger ecosystem (due to the Erlang ecosystem interop as well) and feels quicker to build distributed systems in. The real question is, why not both? There's a library called `Rustler` that lets you call Rust from elixir. This might be useful if you have a small piece you need to make performant. Finally check out this conference talk. It's an actor library written in Rust, and demonstrates some incredible features. "Type Safe & High Perf distributed actor systems with Rust" - kzbin.info/www/bejne/p6OceIeKiLmSes0 Thanks for the comment! =D

[@aiomixrecords]

Thank you a lot for your quick response, i actually was thinking of enabling both to work together where rust work as engine for the graph and receive requests from genservers(elixir)(handling concurrent connections) this way I will take the best from the two languages. thanks again for this amazing content, pls keep up the good work. All the best, am going to watch the link ;)

[@kangalio]

Thank you! ^.^

[@YouCodeThings]

Thank you for the suggestion!!! :)

[@thengakola6217]

No, ur an amazing person *inserts keanu.jpg*

[@YouCodeThings]

*blushes* Oh you

[@michelkazi3112]

Holy shit. I understood this.

[@codewithnws3544]

Hey can you share the idea of creating this video like in the 2d drawing with the animation, what softwaresthat you had used?

[@paroxyzm21]

What about tuples? Those also should have fixed size, so should be stored on the stack? BTW. Thank you for a great video!

[@JoshuaKisb]

hey this looks like the programming language i was thinking of one day making. except i dont understand why they changed the syntax, whats with all that ! ! stuff and why does it become read only when borrowed. i dont get that

[@ladyViviaen]

i FINALLY learned pointers

[@YouCodeThings]

Yay!

[@davidgromer2117]

Hi, at 4:11 you made an example which does not allow a copy of x to a because of rule 2. So far I understand this. Could you please explain why a copy would be ok if we would assign the following: let x = "Hello World"; let a = x; println!("{},{}", a, b); So there must be a difference between let x = "Hello World" and let x = String::from("Hello World"). I heared something about string literal and string type but I do no really get the difference. Is "Hello World" stored at the stack? Thanks

[@YouCodeThings]

Tell me, what can I do to become the best coding channel for you?

[@wildtiger670]

Give us more! :D

[@natecoley160]

give us examples of that is rust was created for - safe async/parallel programming.

[@ubermons]

Make a playlist of this!

[@aeroball8360]

my only suggestion is slower pace. Watching your videos on normal speed is like watching other coding videos at x2 speed. If someone wants it faster they can always up the speed at normal quality, but trying to down the speed to 0.75 is weird and sounds choppy thanks to however youtube is encoding the speed change.

[@ailuros_]

You have done an amazing job so far. I wish your videos had subtitles but I know it's so hard. Maybe speaking a little bit slower it's a tip too, since I am not a native english speaker. That said, this channel is great! Keep it up!

[@marusdod3685]

ive never programmed in rust before, but why shouldnt we be able to have two pointers pointing to the same address? Like if I just wanted to iterate over an array or linkedlist I would probably need many variables pointing to the same location

[@andersmusikka]

What microphone do you use? You have spectacularly good audio quality.

[@laviray5447]

4:42 when the variable X becomes invalid, what exactly then it equals to? what will be the value of X when it comes invalid?

[@wutong4524]

When it becomes invalid, its value is still "hello", but isn't anymore after it became invalid. If you try to access it, it will throw an error (The compiler will throw an error because it's intelligent).

[@Pluvo2for1]

Is the idea of the heap the same as c++? That is, the heap is extra memory the program requests from the OS while the program is running?

[@YouCodeThings]

Yep!

[@henkroth]

I really got alot from this. My ADHD needs to be spoonfed stuff sometimes :P

[@king_james_official]

7:18 wouldn't &a[0..2] return hel? same for the second one, it's one letter too long

[@bharathhariharan4750]

Why aren't you making new videos...your videos are great.

[@YouCodeThings]

Appreciate it! A lot going on. Currently working on some larger game projects. Want to eventually make some videos on that process.

[@lionelprestes]

make more rust tutorials plzzzzzzzzzzzzzzzz

[@ajinkyax]

I watched the video 2 times. And it s all clear now. Very fun to watch and good info. Thanks. There is still a confusing things for me like just a * and &* and

[@Jack_in_the]

our usernames are basically the same

[@YouCodeThings]

:O also nice tool assisted Fortnite!

[@laughingvampire7555]

ok, I prefer Haskell lazyness is less of a mess

[@SKyrim190]

Why do I still find this confusing? D:

[@YouCodeThings]

You got this!