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circular linked list javascript

forinda answered on November 17, 2022 Popularity 6/10 Helpfulness 3/10

answer circular linked list javascript

circular linked list javascript

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class CLLNode {
    constructor(value) {
        this._previous = this;
        this._next = this;
        this._value = value;
    }
    get previous() {
        return this._previous;
    }
    set previous(value) {
        this._previous = value;
    }
    get next() {
        return this._next;
    }
    set next(value) {
        this._next = value;
    }
    get value() {
        return this._value;
    }
    set value(value) {
        this._value = value;
    }
}
class CircularLinkedList {
    constructor() {
        this._head = null;
        this._tail = null;
        this._length = 0;
    }
    get head() {
        return this._head;
    }
    get tail() {
        return this._tail;
    }
    get length() {
        return this._length;
    }
    append(value) {
        const newNode = new CLLNode(value);
        if (!this._head) {
            this._head = newNode;
            this._tail = newNode;
            return;
        }
        this._tail.next = newNode;
        newNode.previous = this._tail;
        this._tail = newNode;
        newNode.next = this._head;
        this._length++;
    }
    prepend(value) {
        const newNode = new CLLNode(value);
        if (!this._head) {
            this._head = newNode;
            this._tail = newNode;
            return;
        }
        newNode.next = this._head;
        this._head.previous = newNode;
        this._head = newNode;
        this._length++;
    }
    delete(value) {
        if (!this._head) {
            return;
        }
        while (this._head && this._head.value === value) {
            this._head = this._head.next;
        }
        let currentNode = this._head;
        while (currentNode.next) {
            if (currentNode.next.value === value) {
                currentNode.next = currentNode.next.next;
            }
            else {
                currentNode = currentNode.next;
            }
        }
        if (this._tail.value === value) {
            this._tail = currentNode;
        }
    }
    toArray() {
        let index = 0;
        const elements = [];
        let currentNode = this._head;
        while (currentNode) {
            elements.push(currentNode.value);
            currentNode = currentNode.next;
            index++;
            if (index > this._length) {
                break;
            }
        }
        return elements;
    }
}
const cars = new CircularLinkedList();
cars.append({ make: 'Ford', model: 'Fiesta', year: 2010 });
cars.append({ make: 'Ford', model: 'Focus', year: 2011 });
cars.append({ make: 'Ford', model: 'Mustang', year: 2015 });
console.table(cars.toArray());
console.table(cars.head.value);
//# sourceMappingURL=circularLinkedList.js.map

Popularity 6/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript linked-list

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Contributed on Nov 17 2022

forinda

0 Answers Avg Quality 2/10

circular linked list javascript

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