• Thursday , 2 April 2020

Data Structures and Algorithms in JavaScript – Full Course for Beginners

Code Canyon



Learn common data structures and algorithms in this tutorial course. You will learn the theory behind them, as well as how to program them in JavaScript.

⭐️ Contents (link to code after title) ⭐️
⌨️ Stacks (00:21) https://codepen.io/beaucarnes/pen/yMBGbR?editors=0012
⌨️ Sets (09:03) https://codepen.io/beaucarnes/pen/dvGeeq?editors=0012
⌨️ Queues & Priority Queues (19:24) https://codepen.io/beaucarnes/pen/QpaQRG?editors=0012
⌨️ Binary Search Tree (26:03) https://codepen.io/beaucarnes/pen/ryKvEQ?editors=0011
⌨️ Binary Search Tree: Traversal & Height (39:34) https://codepen.io/beaucarnes/pen/ryKvEQ?editors=0011
⌨️ Hash Tables (53:19) https://codepen.io/beaucarnes/pen/VbYGMb?editors=0012
⌨️ Linked List (1:03:04) https://codepen.io/beaucarnes/pen/ybOvBq?editors=0011
⌨️ Trie (1:14:59) https://codepen.io/beaucarnes/pen/mmBNBd?editors=0011
⌨️ Heap (max and min) (1:27:29) https://codepen.io/beaucarnes/pen/JNvENQ?editors=0010
🔗 Heap visualization: https://www.cs.usfca.edu/~galles/visualization/Heap.html
⌨️ Graphs: adjacency list, adjacency matrix, incidence matrix (1:42:07)
⌨️ Graphs: breadth-first search (1:46:45) https://codepen.io/beaucarnes/pen/XgrXvw?editors=0012

📄Data structures article by Beau Carnes: https://medium.freecodecamp.org/10-common-data-structures-explained-with-videos-exercises-aaff6c06fb2b
🐦Follow creator Beau Carnes on Twitter: https://twitter.com/carnesbeau

🔗Beau also made this Algorithms course from Manning Publications: https://www.manning.com/livevideo/algorithms-in-motion?a_aid=algmotion&a_bid=9022d293 (Promo code: 39carnes)

Learn to code for free and get a developer job: https://www.freecodecamp.org

Read hundreds of articles on programming: https://medium.freecodecamp.org

And subscribe for new videos on technology every day: https://youtube.com/subscription_center?add_user=freecodecamp

Original source

3d Ocean

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28 Comments

  1. Dan Vig
    January 28, 2019 at 14:17

    Here is the full remove function:

    remove(data) {
    const removeNode = function(node, data) {
    if (node == null) {
    return null;
    }
    if (data == node.data) {
    // node has no children
    if (node.left == null && node.right == null) {
    return null;
    }
    // node has no left child
    if (node.left == null) {
    return node.right;
    }
    // node has no right child
    if (node.right == null) {
    return node.left;
    }
    // node has two children
    var tempNode = node.right;
    while (tempNode.left !== null) {
    tempNode = tempNode.left;
    }
    node.data = tempNode.data;
    node.right = removeNode(node.right, tempNode.data);
    return node;
    } else if (data < node.data) {
    node.left = removeNode(node.left, data);
    return node;
    } else {
    node.right = removeNode(node.right, data);
    return node;
    }
    }
    this.root = removeNode(this.root, data);
    }

  2. GoatzAreEpic Maokai
    January 28, 2019 at 14:17

    Why am I so fucking stupid

  3. suryansh srivastava
    January 28, 2019 at 14:17

    Awesome Guruji Mahaan ho

  4. Trinitrophenylnitramine
    January 28, 2019 at 14:17

    Excellent video for a beginner.

  5. Koushik Sarkar
    January 28, 2019 at 14:17

    Nice explanation Sir. Very helpful for me.

  6. Abdurrahman Hafez
    January 28, 2019 at 14:17

    I love you Beau Carnes

  7. Wener M
    January 28, 2019 at 14:17

    freeCodeCamp.org, thank you for so valuable video lessons! Only one question – is there possibility to increase quality of vids at least up to 1080p?

  8. lalaithan
    January 28, 2019 at 14:17

    Spectacular explanations. These kinds of videos are the reason why I wish YouTube had some sort of go-back-30-second button.

  9. Ali Baba
    January 28, 2019 at 14:17

    Which editor are you using ?

  10. Ronald Aug
    January 28, 2019 at 14:17

    Javascripers!
    1 – Watch this video
    2 – Watch Javascript Modular here
    https://www.youtube.com/watch?v=HkFlM73G-hk&list=PLoYCgNOIyGABs-wDaaxChu82q_xQgUb4f
    And watch CJ live stream here
    3 – https://www.youtube.com/results?search_query=coding+garden+with+cj
    You don't need UDEMY at all!

  11. SINA Man
    January 28, 2019 at 14:17

    I think your difference method for Set is wrong!
    Lets say we have two sets
    setA = [1, 2, 3, 4]
    setB = [2, 3, 5, 6, 7]

    If we do
    setA.difference(setB)
    we get [1, 4] which I think is wrong.
    Should it not be [1, 4, 5, 6, 7] as we are getting the difference between two sets?

  12. Esther Ndosi
    January 28, 2019 at 14:17

    Thank you for this.. I have one concern regarding sets data structure. The current difference function is returning what is in setA but not in setB. I have tried to implement the function which returns the difference between the two. Hopefully it will help.

    this.difference = function(otherSet) {

    var differenceSet = new mySet();

    var _this = this;

    var set1 = this.values();

    var set2 = otherSet.values();

    set1.forEach(function(e){

    if(!otherSet.has(e)){

    differenceSet.add(e);

    }

    });

    set2.forEach(function(e){

    if(!_this.has(e)){

    differenceSet.add(e);

    }

    });

    return differenceSet;

    };

  13. bello musa
    January 28, 2019 at 14:17

    Thanks for the Tut 🙂

  14. JH5280
    January 28, 2019 at 14:17

    amazing video! wish I found this while attending the boot camp I went to

  15. Batt Dogan
    January 28, 2019 at 14:17

    can someone help me to understand why 'this.' is used to name the function, it's not necessary is it?

  16. ahmad abdolsaheb
    January 28, 2019 at 14:17

    Great job, Beau.

  17. UJJWAL VERMA
    January 28, 2019 at 14:17

    Also, make a video on DataStructures & Algorithm in Java. That will be highly appreciated. By the way a nice video.

  18. Marketing Area
    January 28, 2019 at 14:17

    This is nice video 😜

  19. Carrie Oakey
    January 28, 2019 at 14:17

    what program dialect is he coding in? is it Javascript?

  20. Sujeong Kwak
    January 28, 2019 at 14:17

    I love Beau and his videos, but I'd like to know if this course has new or better material than his previous Data Structures and Algorithms videos, because those are in digestible chunks and I'd rather watch those if it's the same material. So basically, should I watch this or the old videos?

  21. JORGE ANDRES VASQUEZ MORALES
    January 28, 2019 at 14:17

    Eres cabrón no te agas el estado unidence

  22. marco c.
    January 28, 2019 at 14:17

    minchia boh

  23. Karina Dorantes
    January 28, 2019 at 14:17

    very helpful!

  24. Demetrius Dasilva
    January 28, 2019 at 14:17

    ЬФ ЇS ГӉԐ БЄSҐ ЇИSҬЯЦҪҬФЯ ЄVЭЯ, thank you so much for sharing this.

  25. Nil Puig
    January 28, 2019 at 14:17

    The Set implementation is not correct, you are using indexOf(), which has a time complexity of O(n). The real implementation of Set.add() uses hash tables, which takes O(1). Deletion in the queue should take O(1), but your implementation takes O(n)

  26. bob2000and10
    January 28, 2019 at 14:17

    Beau is fantastic

  27. MrMybach
    January 28, 2019 at 14:17

    A diff method wouldn't return full difference between sets. It should loop through otherSet too.

  28. Katherine Martin
    January 28, 2019 at 14:17

    This video is dope. Great teaching tool

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