FAQ: Doubly Linked Lists: JavaScript - Doubly Linked List Review

This community-built FAQ covers the “Doubly Linked List Review” exercise from the lesson “Doubly Linked Lists: JavaScript”.

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This exercise can be found in the following Codecademy content:

Pass the Technical Interview with JavaScript

FAQs on the exercise Doubly Linked List Review

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Is it worthwhile to create an iterator for a Doubly Linked List?

I tried to do it using generator functions in the LinkedList class.

  *[Symbol.iterator]() {
    let currentNode = this.head;
    while (currentNode !== null) {
      yield currentNode.data;
      currentNode = currentNode.getNextNode();
    }
  }
  *backwardIterator() {
    let currentNode = this.tail;
    while (currentNode !== null) {
      yield currentNode.data;
      currentNode = currentNode.getPreviousNode();
    }
  }