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Mick Webb
2,247 PointsCode has stopped working. I am following the video and all my buttons have stopped working. Help please.
HTML:
<!DOCTYPE html> <html> <head> <title>JavaScript and the DOM</title> <link rel="stylesheet" href="css/style.css"> </head> <body> <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> <ul> <li>grapes</li> <button class="up">Up</button> <button class="down">down</button> <button class="remove">Remove</button> <li>amethyst</li> <button class="up">Up</button> <button class="down">down</button> <button class="remove">Remove</button> <li>lavender</li> <button class="up">Up</button> <button class="down">down</button> <button class="remove">Remove</button> <li>plums</li> <button class="up">Up</button> <button class="down">down</button> <button class="remove">Remove</button> </ul> <input type="text" class="addItemInput"> <button class="addItemButton">Add Item</button> <button class="removeItemButton">Remove last item</button> </div> <script src="app.js"></script> <script src="temp.js"></script> </body> </html>
App.js(Javascript):
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'); const listItems = document.getElementsByTagName('li');
listUl.addEventListener('click', (event) => { if (event.target.tagName == 'BUTTON') { if (event.target.className == 'remove'){ let li = event.target.parentNode; let ul = li.parentNode; ul.removeChild(li); } if(event.target.className == "remove"){ let li = event.target.parentNode; let ul = li.parentNode; ul.removeChild(li); }
if(event.target.className == "up"){ let li = event.target.parentNode; let prevLi = li.previousElementSibling; let ul = li.parentNode; if(prevLi){ ul.insertBefore(li,prevLi); } } if(event.target.className == "down"){ let li = event.target.parentNode; let nextLi = li.nextElementSibling; let ul = li.parentNode; if(letLi){ ul.insertBefore(nextLi, li); } } } });
toggleList.addEventListener('click', ()=> { if (listDiv.style.display == 'none') { toggleList.textContent = 'Hide list'; listDiv.style.display = 'block'; } else { toggleList.textContent = 'Show list'; listDiv.style.display = '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; ul.appendChild(li); addItemInput.value = ''; })
removeItemButton.addEventListener('click', ()=> { let ul = document.getElementsByTagName('ul')[0]; let li = document.querySelector('li:last-child'); ul.removeChild(li);
})
Saud Tauqeer
Courses Plus Student 8,099 PointsCan you specify what error are you having?
Saud Tauqeer
Courses Plus Student 8,099 Points1 Answer
Saud Tauqeer
Courses Plus Student 8,099 Points<!DOCTYPE html>
<html>
<head>
<title>JavaScript and the DOM</title>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<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>
<ul>
<li>grapes
<button class="up">Up</button>
<button class="down">Down</button>
<button class="remove">Remove</button>
</li>
<li>amethyst
<button class="up">Up</button>
<button class="down">Down</button>
<button class="remove">Remove</button>
</li>
<li>lavender
<button class="up">Up</button>
<button class="down">Down</button>
<button class="remove">Remove</button>
</li>
<li>plums
<button class="up">Up</button>
<button class="down">Down</button>
<button class="remove">Remove</button>
</li>
</ul>
<input type="text" class="addItemInput">
<button class="addItemButton">Add item</button>
</div>
<script src="app.js"></script>
</body>
</html>
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 listUl = listDiv.querySelector('ul');
const addItemInput = document.querySelector('input.addItemInput');
const addItemButton = document.querySelector('button.addItemButton');
listUl.addEventListener('click', (event) => {
if (event.target.tagName == 'BUTTON') {
if (event.target.className == 'remove') {
let li = event.target.parentNode;
let ul = li.parentNode;
ul.removeChild(li);
}
if (event.target.className == 'up') {
let li = event.target.parentNode;
let prevLi = li.previousElementSibling;
let ul = li.parentNode;
if (prevLi) {
ul.insertBefore(li, prevLi);
}
}
if (event.target.className == 'down') {
let li = event.target.parentNode;
let nextLi = li.nextElementSibling;
let ul = li.parentNode;
if (nextLi) {
ul.insertBefore(nextLi, li);
}
}
}
});
toggleList.addEventListener('click', () => {
if (listDiv.style.display == 'none') {
toggleList.textContent = 'Hide list';
listDiv.style.display = 'block';
} else {
toggleList.textContent = 'Show list';
listDiv.style.display = '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;
ul.appendChild(li);
addItemInput.value = '';
});
Try this it should work
Saud Tauqeer
Courses Plus Student 8,099 PointsSaud Tauqeer
Courses Plus Student 8,099 PointsYou should indent your code. i have indented your code so myself and someone else can take a look at your code and possibly answer.