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Dean Dunlap
Full Stack JavaScript Techdegree Student 3,507 PointsSolution appears to be correct, but is not accepted by the Challenge. I need help identify possible cause.
Hello all! I'm working on Unit 2 Javascript and the DOM, specifically on DOM Traversal. I've created a solution that works when run from MS Code environment, but is not accepted by the challenge. It returns: "One or more of the buttons do not affect their previous sibling paragraphs." I got a great recommendation to change prevLi.className = 'highlight', try prevLi.classList.add('highlight') and to also rename variables for clarity. I have done that, but still have same symptoms. Any help would be greatly appreciated!
var list = document.getElementsByTagName('ul')[0];
list.addEventListener('click', function(e) {
if (e.target.tagName == 'BUTTON') {
let button = event.target;
let p = button.previousElementSibling;
p.classList.add ('hightlight');
}
});
<!DOCTYPE html>
<html>
<head>
<title>JavaScript and the DOM</title>
</head>
<link rel="stylesheet" href="style.css" />
<body>
<section>
<h1>Making a Webpage Interactive</h1>
<p>Things to Learn</p>
<ul>
<li><p>Element Selection</p><button>Highlight</button></li>
<li><p>Events</p><button>Highlight</button></li>
<li><p>Event Listening</p><button>Highlight</button></li>
<li><p>DOM Traversal</p><button>Highlight</button></li>
</ul>
</section>
<script src="app.js"></script>
</body>
</html>
1 Answer
rydavim
18,814 PointsGood news! You've definitely got the coding principles down. It's just a simple typo that's stopping the challenge from progressing.
var list = document.getElementsByTagName('ul')[0];
list.addEventListener('click', function(e) {
if (e.target.tagName == 'BUTTON') {
let button = event.target;
let p = button.previousElementSibling;
p.classList.add ('hightlight'); // <-- You've got an extra 't' in here. Should be highlight.
}
});
Nice work, and happy coding!
Dean Dunlap
Full Stack JavaScript Techdegree Student 3,507 PointsDean Dunlap
Full Stack JavaScript Techdegree Student 3,507 PointsThank you! I should have paid better attention in school to have better spellling skills. (See what I did there? ;-) ). Again, thanks for the help and have an awesome day!