Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript DOM Scripting By Example Editing and Filtering Names Filter Invitees Who Have Not Responded

Torian Patterson
Torian Patterson
20,117 Points

Filter not working.

list elements without the id of responded still being displayed.

const form = document.getElementById('registrar');
const input = form.querySelector('input');

const mainDiv = document.querySelector('.main');
const ul = document.getElementById('invitedList');

const div = document.createElement('div');
const filterLabel = document.createElement('label');
const filterCheckBox = document.createElement('input');

filterLabel.textContent = "Hide those that haven't responded";
filterCheckBox.type = 'checkbox';
div.appendChild(filterLabel);
div.appendChild(filterCheckBox);
mainDiv.insertBefore(div, ul);

filterCheckBox.addEventListener('change', (e) => {
  const isChecked = e.target.checked;
  const lis = ul.children;
  if(isChecked) {
    for(let i = 0; i < lis.length; i += 1) {
      let li = lis[i];
      if(li.className === 'responded') {
        li.syle.display = '';
      }else {
        li.style.display = 'none';
      }
    }  
  }else{
    for(let i = 0; i < lis.length; i += 1) {
      let li = lis[i];
      li.style.display = '';
    } 
  }
});


function createLI(text) {
  const li = document.createElement('li');
  const span = document.createElement('span');
  span.textContent = text;
  li.appendChild(span);
  const label = document.createElement('label');
  label.textContent = 'Confirmed';
  const checkbox = document.createElement('input');
  checkbox.type = 'checkbox';
  label.appendChild(checkbox);
  li.appendChild(label);

  const editButton = document.createElement('button');
  editButton.textContent = 'edit';
  li.appendChild(editButton);

  const removeButton = document.createElement('button');
  removeButton.textContent = 'remove';
  li.appendChild(removeButton);
  return li;
}

form.addEventListener('submit', (e) => {
  e.preventDefault();
  const text = input.value;
  input.value = '';
  const li = createLI(text);
  ul.appendChild(li);
});

ul.addEventListener('change', (e) => {
  const checkbox = event.target;
  const checked = checkbox.checked;
  const listItem = checkbox.parentNode.parentNode;

  if (checked) {
   listItem.className = 'responded'; 
  } else{
    listItem.className = '';
  }
});

ul.addEventListener('click', (e) => {
 if (e.target.tagName === 'BUTTON') {
  const button = e.target;
  const li = e.target.parentNode;
  const ul = li.parentNode;
  if (button.textContent === 'remove') {
    ul.removeChild(li);
  } else if (button.textContent === 'edit') {
    const span = li.firstElementChild;
    const input = document.createElement('input');
    input.type = 'text';
    input.value = span.textContent;
    li.insertBefore(input, span);
    li.removeChild(span);
    button.textContent = 'save';
  }  else if (button.textContent === 'save') {
    const input = li.firstElementChild;
    const span = document.createElement('span');
    span.textContent = input.value;
    li.insertBefore(span, input);
    li.removeChild(input);
    button.textContent = 'edit';

  }
 } 
});

2 Answers

Hi Torian, your code is good just a little syntax error in your conditional statement inside the 'for' loop of your 'filterCheckBox' event listener.

 if(li.className === 'responded') {
        li.syle.display = ''; //you mispelled the word 'style'
      }else {
        li.style.display = 'none';
      }

All you need do is spell it out correctly.

  if(li.className === 'responded') {
        li.style.display = '';
      }else {
        li.style.display = 'none';
      }
Teacher Russell
Teacher Russell
16,873 Points

Did you have a problem with the the header image breaking up, after you use the filter checkbox? I finally cut and pasted the code from the project files, and it still happens, so it's either Treehouses editor, or something in the CSS maybe not being supported? Maybe flexbox?