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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Appending Nodes

Posted by jesse dozil
.a{fill-rule:evenodd;}techdegree
jesse dozil
Front End Web Development Techdegree Student 3,777 Points

i need assistance i do not know what i am doing wrong i get this error message , app.js:26 Uncaught TypeError: Cannot re

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('input.addItemButton');

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.getElementByTagName('ul')[0];
let li = document.createElement('li'); li.textContent = addItemInput.value; ul.appendChild(li); addItemInput.value = ''; });

1 Answer

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

You cut off the error message which might have been helpful

Two things to fix in your code:

const addItemButton = document.querySelector('input.addItemButton');
//should be
const addItemButton = document.querySelector('button.addItemButton');
//and
 let ul = document.getElementByTagName('ul')[0];
//should be getElements with an s
 let ul = document.getElementsByTagName('ul')[0];
jesse dozil
.a{fill-rule:evenodd;}techdegree
jesse dozil
Front End Web Development Techdegree Student 3,777 Points

Kris Thanks so much I really appreciate it