Linked List Data Structure | JavaScript 

I am a little rusty on algos, data structures, etc but would like to get into this type of stuff, let me know what you guys think about that.

Hey Brad please upload Data structures in js crash course or big course ...please

Great video, thanks for taking the time to put this together this together @TraversyMedia! One small thing. For you insertAt() and removeAt() functions, I'm pretty sure you want to flip the sign and use an || operator to account for less than 0 values. `if (index < 0 || index > this.size)`

I wasn't able to understand all of this after weeks in a computer science course, but 30 minutes into your video I have a much better understanding. You are great at explanations and don't over complicate topics. Thank you so much for this video!

When I first watched this video almost three years ago I was completely lost and could never follow along. I took another shot yesterday and was able to understand it now. If anyone needs help, I will gladly set up a google meet call and explain it with a debugger trace if we need to. Just passing along what others have done for me in the past. Thank you Brad, this was a great explanation!

This dude is a genius. Not just as a developer, but as a teacher. Thanks, Brad! Data structures is by far the most significant hurdle in programming, and I haven't been able to find anyone who can explain the concepts at a level I can understand. It's hard to teach concepts that are basically abstractions built upon abstractions. But from all the resources I've looked at, Brad has come closest, and in JavaScript no less. Bring on more data structures!

Excellent introduction to a new topic for me! One edge-case we're missing here for the insertAt() method is a negative value being passed as the index. I found that this can be better handled by setting up the "index out of range" conditional to be: "index < 0 || index > this.size", so we simply return (do nothing with the data value) if the index is less than 0 or greater than the size of the linkedList. In my testing that gives us the functionality we want, without a resulting "Cannot set property 'next' of undefined" if a negative index value is passed.

thank you for always being straightforward and keeping it concise. Been watching your videos and following your tutorials for the past year and they have been an immense help. much love from California!

the goat, feeling much more comfortable with LinkedLists after this video. Thank you.

15:49 "Just don't be a dick about it please." LOL! Thanks for being a real one Brad, and for always producing easy-to-follow videos.

// Insert at index insertAt(data, index) { // If index is out of range if (index > 0 && index > this.size) { ---------this line should be like this----------> if (index < 0 || index >this.size){) return; }

Quite glad that you are getting your feet in core CS . It's a rabbit hole from here on and it's really fun as you start diving deeper.

Thanks for the tutorial, I was doing an exercise from Odin Project and can't seem to wrap my head around this list. Your demonstration was very helpful, once I figured out the head variable was the key to this linked List structure, I picked this up real fast. Thanks!

that's a great example of creating and working with Linked Lists on JavaScript. Thank you

Brad i realy don`t understand why you don`t have at least a million subscribers. You're one of the best youtube IT-blogers (for me you`re the best).

You make learning so much easy. Really appreciate you taking the time to make me understand this better than most tutorials out there!!!!

Dude this should indeed be a series, best explanation ever on this topic

you just blow it!!!! How you even do it ....I must say you are X-MEN Mutant YOU JUST MADE LINKDLIST SUPER EASY WITH MOST CONFUSING MODERN JS WOW

the best video i have seen about linked lists, simple and straight to the point. Well done.

Thanks Brad, you did an amazing job again. Finally you did data structures and algorithm 👏🏼💪🏻

"just don't be a dick about it please" caught me off guard. So funny. Thanks for the video, helps to hear different people talk about data structures.

This tutorial made linked links easy for me

Great tutorials , sir You made me a real Developer.

Best tutorial about linked lists. Not just for JS. I searched for java too and this is the best I saw. Since there is just some difference in syntax every c# or java programmer should watch this too.

Initially i did this data structure on my own and then watched your implementation, and this really makes your brain find different solutions

this brings me back (comp sci degree, but never got a job at it)...good stuff! I think maybe for inserting at index the bound check could be index < 0 || index>size? although using a negative index to insert from the end would be a fun exercise too.

@ 7:10 I saw you almost naming your method insertHead.

Please make a complete series of data structures and algorithms in javascript.

I think that you flipped your comparator on line 46. I think you meant to look like ` if (index > 0 || index > this.size) {` which would account for possible negative indexes provided, whereas checking for positive indexes seems like the case that you are looking to execute on.

You taught so much about something so difficult, even to people like me who don't understand clear English. Amazing! Thanks for simple explanation dude

More algos + data structures please! Also some techniques + tips and tricks on how to solve problems. Your tutorials are very informative and easy to understand.

This is my getAt method, if you find it more clear: getAtIndex(index){ if(index>0 && index>this.size) return let count = 0 let currentNode = this.head while(count

Finally some data structures Thanks

Can't wait for that. The normal projects have become quite popular here on RU-vid

Hi Brad, I've been watching your video for years. A little surprised seeing you started algos and data structures. Thanks for sharing. Love you, your Chinese fan.

C'est la base d'algorithme de liste chaînée. Très bien expliquée

Thanks a lot for taking the time to explain this. I've been having a difficult time understanding the logic behind linked lists, but now I feel like I am getting it :)

haha i'd been doing this in school algorithm and data structure, we used to implement double linked list. great to see that you jump into it. this course is really cool and understandable. great work . Love From Cameroon

Yes! More data structures please

Hey Brad , just want to thank you for all the efforts you take for us.And please upload the important topics of javascript in the point of interview please.

Amazing man. Thanks for everything. Trully amazing. i grasped everything after carefully watching the video

For ppl who might be confused in the first place how we remove the node from list: if there is nothing that points to a specific node the node and all of the nodes next to it are all gone due to memory cleaning.

Really helpful! Thanks again Brad!

Thank you Brad. Aye for the series on data structures and algorithms. I watch your videos for dual purpose, to learn and to fall asleep.

Yes! More of these please. Maybe some video about pointers and stuff like that.

Hey Brad thank you so much man. It's important you know your work is helping people out here. I am more confident in my Javascript cause of your course.

Love from India Brad ❤️

Shouldn't early return condition be like (index < 0 || index >= this.size) ? Otherwise if you pass negative value as index it will pass through range check and break data structure.

Nice LL overview that is easy to follow and understand. Thanks!

THis is pure knowledge :) Thanks Brad

We doing data structures now? Hurrayyy

Hi brad Sir, without watch this video because I know you always bring great stuff that is easy to learn. I am greatfull you.

i had a hard time twisting my head around the logic around the insertAt method during the tutorial, especially at the pt where { node } is being assigned to { previous.next }. what helped me was putting a console log statement after line 67 for node and after 68 for previous to see what's going on. conceptionally, we're creating a new node passing in the data and currentNode, then placing the reference in the previous node's next node property.

Thank you Brad. You are turning me into an awesome developer.

Great video Brad. Thanks so much. Request for future video -- I am working on a project connecting two rest API's. One with Oauth2 and another just Bearer. Basically, make a call every 15-30 minutes to get JSON data and then post JSON data. Wondering how you would set this up so I could learn. Thanks!

Thanks brad for your efforts. would love to have a series on data structures and algorithms.

please either make a series of all the important data structures or tell us where to find them on the internet(with code in js)...thank you for everything :)

Thank u for this awesome video, please make whole series on data structure

As always, your tutorial is the best. Thank you!

Amazing explanation, thank you so much!

At 15:05, for the method insertAt(), shouldn't the edge case be if(index < 0 & & index > this.size)

Thank you! Your video is even better than a book i bought

Thanks for this new lesson! I loved it. I would thank much more for other lessons about those programming core subjects applied to JavaScript.

Thank you for all the wonderful content

I look forward to the course React-Native. Please do it on udemy. I believe many people expect this like me

Hi Brad. I have a question. I have seen a lot of companies focus on Data Structures and Algorithms in their Placement Tests but having worked with some tech companies I have never seen much use of DSnA. Most of the work these days is already done for us. Then why so much focus on DSnA? Could it be that I am just not at that level..?

Really liked this video.I'm gonna implement this kind of datastructure in a C project soon and this simple example really helped to get a good idea of how the basic functions should work. If you want to make another video about data structures then Graphs might be a nice data stucture to use, since you can build a graph that consists of multiple linked lists. Another idea you might like to throw in is a Douby Linked List, but that's not too different from Singly Linked Lists ofcourse. Thx for this video my friend.

woww sir...awesome !!!..i recently started learning data structure and algorithms and took a break from web dev

Nice video Brad, i´m a little bit rusty also with algos, I learnt them long time ago in Pascal and C, so getting a refresh in JS was great. What's next? Heaps, Stacks, B-Trees? Thanks again and regards from México!

Hey Brad , really love your work . Thanks a lot. A big inspiration for me.

Your effort and tutorial help us alot. Love to learn data structures in JavaScript from you

correction for insertAt() index should be less than 0 for the first if

I love the way you play with. You are talented in how to deliver information Thnx 😘 bro

Definitely would like to see more on data structures.

You explain things very well. I always come back here to learn new sorcery :P

Thank you very much for this great course.

Please do make more of these 🙏

It was perfect, really helped . Thanks a lot!!

Thanks Brad, please do more of these

why not make a project using the popular data structures to reinforce the concepts...ur videos are an all time fav btw

Please Make Data Structure playlist...😊

Please do more of these. Thanks!

Sorry, in line 44 (index out of range) shouldn't be if(index < 0 || index > this.size)?

Great as usual

This video really helps me a lot, thank you very much!

Thank you so much brad!

This is the best explanation I got.. thanks

Finally I got an aha light bulb moment thank u for making me understand 💡💡💡

Awesome. I was waiting for this. Please make more data structure and algorithm videos

Hello, Can you make a video on designing and developing a fullstack website? Something like an e-commerce store or a dynamic news portal?

Love it! Gave a like! I really wish I can subscribe, but unfortunately the button says "SUBSCRIBED" and its grey'd out. Sorry bro 😐

Why was (index > 0) condition there for the insert at index function. Why not just (index > this.size).. Thanks for the reply

I would love to watch a complete series on data structures and algorithm in JavaScript

Really enjoyed your video on linked lists. Why would you use a linked list over an array?

thats awesome! we need more of this!

Aren't you supposed to keep the reference to the tail? Because it seems like, if you don't, adding to the end of the list is now O(n) operation, instead of O(1)

thank you , this was way too helpful video

Hey, is this ordered or unordered LinkedList ?

awesome explaination 🔥🔥

It's great please continue