// let myLinkedList = {
// head: {
// value: 5,
// next: {
// value: 10,
// next: {
// value: 16,
// next: null
// }
// }
// }
// }
class Node {
constructor(value) {
this.value = value;
this.next = null
}
}
class LinkedList {
constructor(value){
this.head = {
value: value,
next: null
};
this.tail = this.head;
this.length = 1;
}
append(value) {
// const newNode = {
// value: value,
// next: null
// }
const newNode = new Node(value);
this.tail.next = newNode;
this.tail = newNode;
this.length++;
return this;
}
prepend(value) {
const newNode = new Node(value);
newNode.next = this.head;
this.head = newNode;
this.length++;
return this;
}
printList() {
let array = [];
let currentNode = this.head
while(currentNode !== null) {
array.push(currentNode.value)
currentNode = currentNode.next;
}
return array;
}
insert(index, value) {
}
}
const myLinkedList = new LinkedList(10);
myLinkedList.append(5)
myLinkedList.append(16)
myLinkedList.prepend(85)
myLinkedList.prepend(50)
myLinkedList.printList()
console.log(myLinkedList)
// add a method remove() to the linked list that deletes a node to the specified index.
class LinkedList {
constructor(value) {
this.head = {
value: value,
next: null
};
this.tail = this.head;
this.length = 1;
}
append(value) {
const newNode = {
value: value,
next: null
}
this.tail.next = newNode;
this.tail = newNode;
this.length++;
return this;
}
prepend(value) {
const newNode = {
value: value,
next: null
}
newNode.next = this.head;
this.head = newNode;
this.length++;
return this;
}
printList() {
const array = [];
let currentNode = this.head;
while(currentNode !== null){
array.push(currentNode.value)
currentNode = currentNode.next
}
return array;
}
insert(index, value){
//Check for proper parameters;
if(index >= this.length) {
console.log('yes')
return this.append(value);
}
const newNode = {
value: value,
next: null
}
const leader = this.traverseToIndex(index-1);
const holdingPointer = leader.next;
leader.next = newNode;
newNode.next = holdingPointer;
this.length++;
return this.printList();
}
traverseToIndex(index) {
//Check parameters
let counter = 0;
let currentNode = this.head;
while(counter !== index){
currentNode = currentNode.next;
counter++;
}
return currentNode;
}
}
let myLinkedList = new LinkedList(10);
myLinkedList.append(5);
myLinkedList.append(16);myLinkedList.prepend(1);
myLinkedList.insert(2, 99);
myLinkedList.insert(20, 88);
// add a method remove() to the linked list that deletes a node to the specified index.
class LinkedList {
constructor(value) {
this.head = {
value: value,
next: null
};
this.tail = this.head;
this.length = 1;
}
append(value) {
const newNode = {
value: value,
next: null
}
this.tail.next = newNode;
this.tail = newNode;
this.length++;
return this;
}
prepend(value) {
const newNode = {
value: value,
next: null
}
newNode.next = this.head;
this.head = newNode;
this.length++;
return this;
}
printList() {
const array = [];
let currentNode = this.head;
while(currentNode !== null){
array.push(currentNode.value)
currentNode = currentNode.next
}
return array;
}
insert(index, value){
//Check for proper parameters;
if(index >= this.length) {
console.log('yes')
return this.append(value);
}
const newNode = {
value: value,
next: null
}
const leader = this.traverseToIndex(index-1);
const holdingPointer = leader.next;
leader.next = newNode;
newNode.next = holdingPointer;
this.length++;
return this.printList();
}
traverseToIndex(index) {
//Check parameters
let counter = 0;
let currentNode = this.head;
while(counter !== index){
currentNode = currentNode.next;
counter++;
}
return currentNode;
}
remove(index) {
// Check Parameters
const leader = this.traverseToIndex(index-1);
const unwantedNode = leader.next;
leader.next = unwantedNode.next;
this.length--;
return this.printList();
}
}
let myLinkedList = new LinkedList(10);
myLinkedList.append(5);
myLinkedList.append(16);myLinkedList.prepend(1);
myLinkedList.insert(2, 99);
myLinkedList.insert(20, 88);
myLinkedList.remove(2);
class LinkedList {
constructor(value) {
this.head = {
value: value,
next: null
};
this.tail = this.head;
this.length = 1;
}
append(value) {
const newNode = {
value: value,
next: null
}
console.log(newNode)
this.tail.next = newNode;
this.tail = newNode;
this.length++;
return this;
}
prepend(value) {
const newNode = {
value: value,
next: null
}
newNode.next = this.head;
this.head = newNode;
this.length++;
return this;
}
printList() {
const array = [];
let currentNode = this.head;
while(currentNode !== null){
array.push(currentNode.value)
currentNode = currentNode.next
}
return array;
}
insert(index, value){
//Check for proper parameters;
if(index >= this.length) {
console.log('yes')
return this.append(value);
}
const newNode = {
value: value,
next: null
}
const leader = this.traverseToIndex(index-1);
const holdingPointer = leader.next;
leader.next = newNode;
newNode.next = holdingPointer;
this.length++;
return this.printList();
}
traverseToIndex(index) {
//Check parameters
let counter = 0;
let currentNode = this.head;
while(counter !== index){
currentNode = currentNode.next;
counter++;
}
return currentNode;
}
remove(index) {
// Check Parameters
const leader = this.traverseToIndex(index-1);
const unwantedNode = leader.next;
leader.next = unwantedNode.next;
this.length--;
return this.printList();
}
reverse() {
if (!this.head.next) {
return this.head;
}
let first = this.head;
this.tail = this.head;
let second = first.next;
while(second) {
const temp = second.next;
second.next = first;
first = second;
second = temp;
}
this.head.next = null;
this.head = first;
return this.printList();
}
}
let myLinkedList = new LinkedList(10);
myLinkedList.append(5)
myLinkedList.append(16)
myLinkedList.prepend(1)
myLinkedList.printList()
myLinkedList.insert(2, 99)
myLinkedList.insert(20, 88)
myLinkedList.printList()
myLinkedList.remove(2)
myLinkedList.reverse()
