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JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Getting the First and Last Child

Ben Ahlander
Ben Ahlander
7,528 Points
Posted by Ben Ahlander
Ben Ahlander
7,528 Points

Uncaught SyntaxError: Unexpected token )

Essentially nothing is working. Im guessing its a all because of a couple syntax errors. Im having a hard time finding the problems. Thanks!!

 const toggleList = document.getElementById('toggleList');
const listDiv = document.querySelector('.list')
const discriptionInput = document.querySelector('input.description');
const descriptionP = document.querySelector('p.description');
const descritptionButton = document.querySelector('button.description');
const addItemInput = document.querySelector('item.addItemInput');
const addItemButton = document.querySelector('item.addItemButton');
const listUl = listDiv.querySelector('ul');
const lis = listUl.children;


function attachListItemButtons(li) {
  let up = document.createElement('button');
    up.className = 'up';
    up.textContent = 'up';
    li.appendChild(up);

  let down = document.createElement('button');
    down.className = 'down';
    down.textContent = 'down';
    li.appendChild(down);

  let remove = document.createElement('button');
    remove.className = 'remove';
    remove.textContent = 'remove';
    li.appendChild(remove); 
};

for (let i=0; i<lis.length; i+=1) {
  attachListItemButtons(lis[i]);
}

    listDiv.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);
          };

         }

      }
     });



listUl.addEventListener('click', () => {
  if (listDiv.style.display == 'none') {
    toggleList.textContent = 'Hide List';
    listDiv.style.display = 'block';
} else {
  toggleList.textContent = 'Show List';
  listDiv.style.display = 'none';                            
});

descritptionButton.addEventListener('click', () => {
  descriptionP.innerHTML = discriptionInput.value + ':';
  discriptionInput.value = '';
});

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

<!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>
      <li>amethyst</li>
      <li>lavender</li>
      <li>plums</li>
    </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>

  </body>
</html>

1 Answer

Jan Svensson
Jan Svensson
10,005 Points
Jan Svensson
Jan Svensson
10,005 Points

On which rows are your errors?