JavaScript JavaScript and the DOM Responding to User Interaction The Event Object

Gareth Alexander
Gareth Alexander
Full Stack JavaScript Techdegree Student 2,943 Points

The workspace doesn't match the teachers video, the code is similar, but different. Is it linking to an new Workspace?

I've come across this several times. The workspace code doesn't match the video. Is this because the video was shot a while ago and the videos haven't been updated? It is very confusing.

1 Answer

Doron Geyer
Doron Geyer
Full Stack JavaScript Techdegree Student 13,838 Points

Hi Gareth, The workspace should be the same, I have downloaded the files to check directly in my VSCODE and dont see anything different my side could you post your code that you have in the workspace into markup?

The issue you may have is that some of the workspaces build up on your previous work done, so if yours was slightly different along the way this could compound to where your's is completely different.

heres the code working as it should be if you'd like to copy it directly perhaps it will help you

const toggleList = document.getElementById("toggleList");
const listDiv = document.querySelector(".list");
const descriptionInput = document.querySelector("input.description");
const descriptionP = document.querySelector("p.description");
const descriptionButton = document.querySelector("button.description");
const addItemInput = document.querySelector("input.addItemInput");
const addItemButton = document.querySelector("button.addItemButton");
const removeItemButton = document.querySelector("button.removeItemButton");

//first attempt at solution. Less concise version
listDiv.addEventListener('mouseover', (event) => {
  if( 'LI'){  =;
//more concise way to do the same as above.
listDiv.addEventListener('mouseout', (event) => {
  if( 'LI'){  =;
toggleList.addEventListener("click", () => {
  if ( == "none") {
    toggleList.textContent = "Hide list"; = "block";
  } else {
    toggleList.textContent = "Show list"; = "none";

descriptionButton.addEventListener("click", () => {
  descriptionP.innerHTML = descriptionInput.value + ":";
  descriptionInput.value = "";

addItemButton.addEventListener("click", () => {
  let ul = document.getElementsByTagName("ul")[0];
  let li = document.createElement("li");
  li.textContent = addItemInput.value;
  addItemInput.value = "";

removeItemButton.addEventListener("click", () => {
  let ul = document.getElementsByTagName("ul")[0];
  let li = document.querySelector("li:last-child");
<!DOCTYPE html>
    <title>JavaScript and the DOM</title>
    <link rel="stylesheet" href="css/style.css">
    <h1 id="myHeading">JavaScript and the DOM</h1>
    <p>Making a web page interactive</p>
    <button id="toggleList">Hide list</button>
    <div class="list">
      <p class="description">Things that are purple:</p>
      <input type="text" class="description">
      <button class="description">Change list description</button>
      <input type="text" class="addItemInput">
      <button class="addItemButton">Add item</button>
      <button class="removeItemButton">Remove last item</button>
    <script src="app.js"></script>

hope that helps anyone with similar issues