Chain and Link Starter

A starter project for the COP3530 Chain and link

by wooozy

HTML

This is a demonstration of the concept of making a Linked List (in this case we call it a chain in JavaScript). There are 2 object involved here - and this is a very easy conceptual way to do this.
<br/>
<br/> Add Link Name:
<input type="textbox" id="LinkName" Value="New Link" />
<input type="button" id="AddLink" value="Add Link" onClick="addLink();" />
<input type="button" id="DisplayHead" value="Display Chain Head" onClick="displayChainHead();" />
<p id="demo"></p>

JavaScript

// Let's try it by making a single link chain and testing it.
var chain = new Chain('Link 1');
var chain2 = new Chain("Link 2");
var chain3 = new Chain("Link 3 ");
var chain4 = new Chain("Link 4");
var chain5 = new Chain("Link 5");

function addLink() {
  var newLinkName = document.getElementById("AddLink").value;
  alert("Adding a Link Named: " + firstLinkName);
  chain.addLink(newLinkName);
  chain.print();
  console.log(chain);
  secondLink();
  }
  
  function secondLink(){
  var secondLinkName = document.getElementbyID("SecondLink").value;
  alert("Adding a Link Named:" +secondLinkName);
  chain2.secondLink(secondLinkName);
  chain2.print();
  thirdLink();
}

function thirdLink(){
var thirdLinkName = document.getElementbyId("ThirdLink").value;
alert("Adding a new Link Named:" +thirdLinkName);
chain.thirdLink(thirdLinkName);
chain.print();
fourthLink();
}

function fourthLink(){
var fourthLink = document.getElementbyId("FourthLink").value;
alert("Adding a new Link Named:" +fourthLinkName);
chain.fourthLink(fourthLinkName);
fifthLink();

}

function fifthLink(){
var fitfthLink = document.getElementbyId("FifthLink").value;
alert("Adding a new Link Named:" + fifthLinkName);
chain.fifthLink(fifthLinkName)
}

function displayChainHead() {
  // This should print out - just a sample output
  document.getElementById("demo").innerHTML = chain.head.asString();
}

// Define the link object
function Link(_id, _value, _next) {
  // This is a possible implementation of a Link - this requires 3 pieces of information and links have an ID. Note - also not required for successful implementation.
  this.id = _id; // The id of the current link
  this.value = _value; // The value stored 
  this.next = _next; // a pointer to the next link, this is 0 if it is the last link in the chain
}

Link.prototype.asString = function() {
  return "Link: " + this.id +
    " Value:" + this.value +
    " Points To: " + this.next + "<br/>";
}

Link.prototype.setPointer = function(_next) {
  // A...