mirror of
https://gitea.smigz.com/smiggiddy/odin-codeprojects.git
synced 2024-12-25 22:10:43 -05:00
Csci (#12)
* feat: recursive sorting * feat: linked list project * fix: swap head/tail * feat: bioler plate hashmap * feat: project hashmap complete * fix: remove unnecessary code
This commit is contained in:
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parent
73b1aea699
commit
0aea48d868
2 changed files with 367 additions and 36 deletions
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@ -1,32 +1,23 @@
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class LinkedList {
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constructor() {
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this.size = 0;
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this.head = null;
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this.tail = null;
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this.head = null;
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}
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getHead() {
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return this.head;
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}
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getTail() {
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return this.tail;
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}
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getSize() {
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return this.size;
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}
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append(value) {
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let newNode = new Node(value);
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if (this.tail == null) {
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this.tail = newNode;
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} else {
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const temp = this.tail;
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this.tail = newNode;
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this.tail.nextNode = temp;
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}
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if (this.head == null) {
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this.head = newNode;
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} else {
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const temp = this.head;
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this.head = newNode;
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this.head.nextNode = temp;
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}
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if (this.tail == null) {
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this.tail = newNode;
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}
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this.size += 1;
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@ -34,15 +25,17 @@ class LinkedList {
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prepend(value) {
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let newNode = new Node(value);
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if (this.head == null) {
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this.head = newNode;
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if (this.tail == null) {
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this.tail = newNode;
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if (this.tail == null) {
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this.tail = newNode;
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if (this.head == null) {
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this.head = newNode;
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}
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} else {
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const temp = this.head;
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const temp = this.tail;
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temp.nextNode = newNode;
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this.head = newNode;
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this.tail = newNode;
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}
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this.size += 1;
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}
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@ -58,14 +51,15 @@ class LinkedList {
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}
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}
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return nodeAtIndex(index, 0, this.tail);
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return nodeAtIndex(index, 0, this.head);
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}
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pop() {
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if (this.tail.nextNode == null) {
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this.tail = null;
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if (this.head.nextNode == null) {
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this.head = null;
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this.tail = null;
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} else {
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this.tail = this.tail.nextNode;
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this.head = this.head.nextNode;
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}
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this.size -= 1;
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}
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@ -81,7 +75,8 @@ class LinkedList {
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}
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}
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return searchNodes(this.tail, value);
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return searchNodes(this.head, value);
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}
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find(value) {
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@ -96,13 +91,15 @@ class LinkedList {
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}
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}
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return searchNodes(this.tail, value, index);
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return searchNodes(this.head, value, index);
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}
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insertAt(value, index) {
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let previousNode = null;
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let newNode = new Node(value);
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let currentNode = this.tail;
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let currentNode = this.head;
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let count = 0;
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if (index === 0) {
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@ -131,7 +128,8 @@ class LinkedList {
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removeAt(index) {
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let previousNode = null;
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let currentNode = this.tail;
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let currentNode = this.head;
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let count = 0;
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if (index === 0) {
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@ -158,7 +156,8 @@ class LinkedList {
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toString() {
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let nodes = [];
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let current = this.tail;
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let current = this.head;
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while (current != null) {
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nodes.push(current.value);
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@ -203,9 +202,14 @@ list.toString();
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list.removeAt(6);
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console.log("Removing element 6");
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list.toString();
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console.log('removing inserted elements')
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list.removeAt(1);
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list.removeAt(3);
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list.removeAt(0);
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list.removeAt(3);
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console.log("Removing element 1");
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list.toString();
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console.log("Removing element 1");
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list.removeAt(0);
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list.toString();
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console.log("Removing element Deez Nuts");
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list.removeAt(3);
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list.toString();
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327
csci/projectHashMap.js
Normal file
327
csci/projectHashMap.js
Normal file
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@ -0,0 +1,327 @@
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// https://github.com/TheOdinProject/curriculum/issues/27103
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class Node {
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constructor(key, value) {
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this.key = key;
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this.value = value;
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this.next = null;
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}
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}
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class LinkedList {
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constructor() {
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this.size = 0;
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this.head = null;
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this.tail = null;
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}
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append(key, value) {
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let newNode = new Node(key, value);
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if (this.head == null) {
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this.head = newNode;
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} else {
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const temp = this.head;
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this.head = newNode;
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this.head.next = temp;
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}
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if (this.tail == null) {
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this.tail = newNode;
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}
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this.size += 1;
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}
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pop() {
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if (this.head.next == null) {
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this.head = null;
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this.tail = null;
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} else {
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this.head = this.head.next;
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}
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this.size -= 1;
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}
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contains(key) {
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function searchNodes(node, key) {
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if (node.key === key) {
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return true;
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} else if (node.next == null) {
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return false;
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} else {
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return searchNodes(node.next);
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}
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}
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return searchNodes(this.head, key);
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}
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replace(key, value) {
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function replace(node) {
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if (node.key === key) {
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node.value = value;
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} else {
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return replace(node.next);
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}
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}
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replace(this.head, key);
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}
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find(key) {
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function searchNodes(node, key) {
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if (node.key === key) {
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return node.value;
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} else if (node.next == null) {
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return null;
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} else {
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return searchNodes(node.next, key);
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}
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}
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return searchNodes(this.head, key);
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}
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remove(key) {
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let lastNode = this.head;
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let currentNode = this.head;
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if (currentNode.key === key) {
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if (currentNode.next == null) {
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this.size = 0;
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this.head = null;
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this.tail = null;
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} else {
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this.size -= 1;
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this.head = this.head.next;
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}
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return true;
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}
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while (currentNode) {
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if (currentNode.key === key) {
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lastNode.next = currentNode.next;
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this.size -= 1;
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return true;
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}
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lastNode = currentNode;
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currentNode = currentNode.next;
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}
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return false;
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}
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}
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class HashMap {
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constructor(capacity = 8) {
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this.initialCapacity = capacity;
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this.capacity = capacity;
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this.buckets = Array(capacity);
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this.capacity = this.buckets.length;
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this.loadFactor = 0.75;
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}
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stringToNumber(string) {
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let hashCode = 0;
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const primeNumber = 31;
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for (let i = 0; i < string.length; i++) {
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hashCode = primeNumber * hashCode + string.charCodeAt(i);
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}
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return hashCode;
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}
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hash(key) {
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return this.stringToNumber(key);
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}
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capacityWatcher() {
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let consumed = this.buckets.filter(Object).length;
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if (consumed >= this.capacity * this.loadFactor) {
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this.capacity = Math.round(1.25 * this.capacity);
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}
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}
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set(key, value) {
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let _hash = this.hash(key);
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let bucketIndex = _hash % this.capacity;
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this.capacityWatcher();
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if (this.buckets[bucketIndex] == undefined) {
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let linkedList = new LinkedList();
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linkedList.append(key, value);
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this.buckets[bucketIndex] = linkedList;
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} else {
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let keyExists = this.buckets[bucketIndex].contains(key);
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if (keyExists) {
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this.buckets[bucketIndex].replace(key, value);
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} else {
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this.buckets[bucketIndex].append(key, value);
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}
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}
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}
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get(key) {
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let value = this.buckets[i].find(key);
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if (value) return value;
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}
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}
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}
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has(key) {
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let value = this.buckets[i].find(key);
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if (value) return true;
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}
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}
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return false;
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}
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remove(key) {
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let removed = this.buckets[i].remove(key);
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if (this.buckets[i].size === 0) this.buckets[i] = undefined;
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if (removed) return true;
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}
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}
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return false;
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}
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length() {
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let count = 0;
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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count += this.buckets[i].size;
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}
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}
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return count;
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}
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clear() {
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this.capacity = this.initialCapacity;
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this.buckets = Array(this.capacity);
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}
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keys() {
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let _keys = [];
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let currentNode = this.buckets[i].head;
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while (currentNode) {
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_keys.push(currentNode.key);
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currentNode = currentNode.next;
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}
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}
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}
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return _keys;
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}
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values() {
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let _values = [];
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let currentNode = this.buckets[i].head;
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while (currentNode) {
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_values.push(currentNode.value);
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currentNode = currentNode.next;
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}
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}
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}
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return _values;
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}
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entries() {
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let _entries = [];
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for (let i = 0; i < this.buckets.length; i++) {
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if (this.buckets[i]) {
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let currentNode = this.buckets[i].head;
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while (currentNode) {
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_entries.push([currentNode.key, currentNode.value]);
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currentNode = currentNode.next;
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}
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}
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}
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return _entries;
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}
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}
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let t = new HashMap();
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// Starter Data
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t.set("football", "redskins");
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t.set("framework", "laptop");
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t.set("framework 2", "sucks");
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t.set("deliver", "me");
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t.set("alpha", "omega");
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t.set("hello", "world");
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t.set("hello", "smigs");
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t.set("helo", "world");
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t.set("omg kevin that's wild", "world");
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t.set("mike", "world");
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t.set("zebra", "zoo");
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t.set("linux", "tux");
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t.set("c major", "c e g");
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t.remove("zebra");
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t.remove("hello");
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console.log(t.length());
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// Print the Keys
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console.log(t.keys());
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// Print the values
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console.log(t.values());
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// Print keys and values
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console.log(t.entries());
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// clear the hashmap
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t.clear();
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console.log("Stuff was cleared");
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console.log("new data set");
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t.set("football", "redskins");
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t.set("framework", "laptop");
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t.set("framework 2", "sucks");
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t.set("deliver", "me");
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t.set("alpha", "omega");
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t.set("hello", "world");
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t.set("hello", "smigs");
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t.set("helo", "world");
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t.set("omg kevin that's wild", "world");
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t.set("mike", "world");
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t.set("zebra", "zoo");
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t.set("linux", "tux");
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t.set("c major", "c e g");
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t.set("user_role", "DevOps Engineer");
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t.set("interests", "Blogging, Influencing, Stocks, Generating Income");
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t.set("goals", "Build following / grow community, Learn and grow, Technology");
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t.set("preferred_name", "Smig");
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t.set("data_request", "Create key value pairs for an arbitrary data set");
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t.set("format", "t.set('key', 'value')");
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t.set("entries", "30");
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t.set("entry_1", "value_1");
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t.set("entry_2", "value_2");
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t.set("entry_3", "value_3");
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t.set("entry_4", "value_4");
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t.set("entry_5", "value_5");
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t.set("entry_6", "value_6");
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t.set("entry_7", "value_7");
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t.set("entry_8", "value_8");
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t.set("entry_9", "value_9");
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t.set("entry_10", "value_10");
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t.set("entry_11", "value_11");
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t.set("entry_12", "value_12");
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t.set("entry_13", "value_13");
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t.set("entry_14", "value_14");
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t.set("entry_15", "value_15");
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t.set("entry_16", "value_16");
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t.set("entry_17", "value_17");
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t.set("entry_18", "value_18");
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t.set("entry_19", "value_19");
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t.set("entry_20", "value_20");
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t.set("entry_21", "value_21");
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t.set("entry_22", "value_22");
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t.set("entry_23", "value_23");
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t.set("entry_24", "value_24");
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t.set("entry_25", "value_25");
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t.set("entry_26", "value_26");
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t.set("entry_27", "value_27");
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t.set("entry_28", "value_28");
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t.set("entry_29", "value_29");
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t.set("entry_30", "value_30");
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console.log(t.keys());
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console.log(t.entries());
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