Nodes Introduction

An individual node contains data and links to other nodes.

The link or links within the node are sometimes referred to as pointers. This is because they “point” to another node.

Node (computer science)

class Node {
  constructor(data) {
    this.data = data;
    this.next = null;
  }

  setNextNode(node) {
    if (node instanceof Node || node === null) {
      this.next = node;
    } else {
      throw new Error('Next node must be a member of the Node class.');
    }
  }

  getNextNode() {
    return this.next;
  }
}
const strawberryNode = new Node('Berry Tasty');
const vanillaNode = new Node('Vanilla');
const coconutNode = new Node('Coconuts for Coconut');

vanillaNode.setNextNode(strawberryNode);
strawberryNode.setNextNode(coconutNode);

let currentNode = vanillaNode;
while(currentNode !== null) {
  console.log(currentNode.data);
  currentNode = currentNode.next;
}
// result of iteration:
// Vanilla
// Berry Tasty
// Coconuts for Coconut

module.exports = Node;