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Yu-Che Hung
Courses Plus Student 10,607 PointsSTUCKED
A delegated click event listener has been attached to the selected ul element, which is stored in the variable list. The handler is targeting each button in the list. When any one of the buttons is clicked, a class of highlight should be added to the paragraph element immediately preceding that button inside the parent list item element. Add the code to create this behavior on line 5.
const list = document.getElementsByTagName('ul')[0];
list.addEventListener('click', function(e) {
if (e.target.tagName == 'BUTTON') {
let preP = e.target.previousElementSibiling;
preP.className="highlight";
}
});
<!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
Stephan Olsen
6,650 PointsYou've actually got the right code, you just misspelled previousElementSibling. You typed Sibiling instead of Sibling.
Yu-Che Hung
Courses Plus Student 10,607 PointsYu-Che Hung
Courses Plus Student 10,607 PointsTHANKS!